Wind Chill, Snow Day Pro

Calculate wind chill from temperature and wind speed in several units, even without a network connection.

Current App Store listing: Wind Chill, Snow Day Pro

App Store checked October 25, 2026. The current description and screenshots are shown in this section. The original article and images following this section are preserved as historical material.

Wind Chill, Snow Day Pro app icon

About this app

You put care into the plans you make. Thank you for using Wind Chill to check the cold, choose a time to head out, and keep family or coworkers informed.

CHECK HOW COLD IT FEELS

See how a windy morning may feel before you head out.

– Enter air temperature and wind speed.
– Choose Fahrenheit or Celsius.
– Use MPH, KPH, or knots for wind.
– See wind chill in both temperature units.
– Calculate offline as often as you need.
– Revisit your five most recent results.

LOOK AHEAD WITH U.S. WEATHER

Check NOAA and National Weather Service observations and forecasts.

– Fetch weather for Current Location or a saved place.
– Use saved coordinates without location permission.
– Check station conditions and observation times.
– Browse daily forecasts and hourly weather graphs.
– Compare temperature, wind chill, and sustained wind.
– See precipitation chances and unavailable readings.

PLAN AROUND YOUR SCHEDULE

Save the place and activity window that matter, such as a 7 to 8 a.m. school run.

– Keep home, school, work, and travel places handy.
– Choose one date or repeat on selected weekdays.
– Keep each plan in its saved time zone.
– Review temperature, wind chill, gusts, and precipitation.
– Add a note, duplicate a plan, or change its times.
– Open an existing activity to review its details.

COMPARE POSSIBLE TIMES

Decide when to head out using the weather conditions that matter to you.

– Compare windows of the same duration.
– Look for warmer hours or lower sustained wind.
– Compare the highest hourly precipitation chance.
– Set temperature, wind chill, wind, and gust limits.
– Leave a limit blank when it does not matter.
– See why a window meets your limits or cannot be assessed.

TAKE A CLOSER LOOK WITH SNOWDAY

Review winter conditions with snow, liquid precipitation, and planning estimates.

– See 24-hour and 48-hour estimates where forecasts support them.
– Keep small liquid amounts distinct from zero.
– Recognize missing information before comparing conditions.
– Read precipitation chance separately from precipitation amount.
– Review planning scores for schools, workplaces, and roads.

SnowDay offers planning estimates. Schools, employers, and road authorities make official decisions.

REMINDERS FOR YOUR ROUTINE

– Set a temperature or wind chill threshold.
– Choose Fahrenheit or Celsius and a reminder lead time.
– Use the weekdays and activity window saved in your plan.
– Read when the forecast was checked.
– Tap a reminder to open the relevant activity.

Reminders need notification permission and a recent forecast you have fetched. Refresh when you need new weather.

KEEP THE DETAILS CLOSE

– See your next activity in a Home Screen widget.
– Recognize older or unavailable weather.
– Share a winter-planning card as text or an image.
– Include its place, valid period, conditions, source, and checked time.
– Choose whether to include your note or exact coordinates.
– Save school-announcement and state road-condition links.
– Open section help beside the setting you are changing.

ON IPHONE, IPAD, AND APPLE WATCH

Use the offline Apple Watch calculator, keep records on your watch, and share individual records when you choose.

Weather can change or arrive late. Check current official forecasts, warnings, and local information before making decisions.

For monthly subscriptions:
Monthly Pro is a 1-month auto-renewable subscription.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

App Store Screenshots

Wind Chill, Snow Day Pro App Store iphone screenshot 1
Wind Chill, Snow Day Pro App Store iphone screenshot 1
Wind Chill, Snow Day Pro App Store iphone screenshot 2
Wind Chill, Snow Day Pro App Store iphone screenshot 2
Wind Chill, Snow Day Pro App Store iphone screenshot 3
Wind Chill, Snow Day Pro App Store iphone screenshot 3
Wind Chill, Snow Day Pro App Store ipad screenshot 1
Wind Chill, Snow Day Pro App Store ipad screenshot 1
Wind Chill, Snow Day Pro App Store ipad screenshot 2
Wind Chill, Snow Day Pro App Store ipad screenshot 2

Latest App Store Release Notes

You take the time to plan ahead, and the people around you benefit from that care. Thank you for using Wind Chill. This update makes winter plans easier to review, with help close to the options you use.

LESS SCROLLING, HELP CLOSE BY

– Find help beside activity times, weather limits, and reminders.
– Open an explanation when you need it, then return to your plan.
– Use more compact limit fields and weekday selections.
– Keep forecast values, checked times, and missing information visible.
– Use layouts that adapt when you prefer larger text.

PLAN FOR YOUR DEPARTURE OR ACTIVITY

– Save a school run, morning commute, outdoor shift, or practice.
– Name each new plan and choose a saved place.
– Set a start and end time, such as 7 to 8 a.m.
– Choose one date or repeat on selected weekdays.
– Keep activity times in the place’s saved time zone.
– Open an existing plan to see its details and expected conditions.

COMPARE HOURS BEFORE CHOOSING

Compare forecast windows of the same duration, using your own limits.

– Look for warmer periods or lower sustained wind.
– Compare the highest hourly precipitation chance.
– Set minimum temperature or wind chill limits.
– Choose maximum wind, gust, and precipitation chance limits.
– See which limits a window meets and what information is missing.
– Apply a chosen time without changing your selected weekdays.

CLEARER SNOWDAY ESTIMATES

– Keep small positive liquid amounts visible.
– Tell a reported zero apart from unavailable information.
– Read precipitation chance separately from liquid amount.
– Use forecast conditions for the period being assessed.
– See 24-hour and 48-hour estimates where the data supports them.
– Review school, workplace, and road-impact planning scores.

SnowDay estimates help you review conditions. Confirm official decisions with the responsible school, employer, or road authority.

COLD REMINDERS THAT FIT YOUR PLANS

– Choose temperature or wind chill as your reminder condition.
– Set your threshold in Fahrenheit or Celsius.
– Choose a lead time of up to 24 hours before an activity.
– Use the weekdays and time window saved with your plan.
– See when the forecast was checked in each reminder.
– Tap a reminder to return to its activity.

Reminders need notification permission and a recent forecast you have fetched. Refreshing the forecast or editing a plan updates the reminders that apply.

YOUR NEXT ACTIVITY AT A GLANCE

– Add a Home Screen widget for your next activity.
– See its place, valid period, and last forecast check.
– Recognize stale, missing, or expired weather information.
– Open the relevant plan from the widget.
– Keep newer station observations when a later fetch returns older data.

SHARE A SHORT WINTER UPDATE

– Preview a planning card before sharing text or an image.
– Include the place, valid time, conditions, source, and update time.
– Add a note for family, colleagues, or an outdoor group.
– Choose whether to share your note or exact coordinates.
– Keep the forecast shown in your preview when you share.

KEEP YOUR ROUTINE IN ORDER

– Weekly plans remain available after a skipped daylight-saving time.
– Get a clear message if a plan changes in another window.
– Protect newer edits and keep deleted plans from reappearing.
– Carry your chosen wind units between planning and the calculator.
– Save school-announcement and state road-condition links by place.

MANUAL CALCULATIONS STAY UNLIMITED

Your offline wind chill calculator remains free. The iPhone weather preview includes five successful fetches per local calendar day for five consecutive days from your first successful free fetch. Monthly Pro and Lifetime Pro include SnowDay and these planning tools.

App Store Information

  • App Store category: Weather
  • Genres: Weather, Travel
  • Availability: Free
  • Current version: 8.4
  • Requires: iOS 17.6 or later
  • Content rating: 4+
  • Last updated: 2026-10-23

Developed by Verosocial. App details can change; verify the current App Store listing before publication.

About this app

Thank you for choosing Wind Chill. You take the time to check conditions before heading out, and that is a smart habit. Check how cold it feels, review local weather and plan for cold days with a practical wind chill calculator.

CALCULATE THE COLD

Enter air temperature and wind speed to calculate wind chill before a walk, a commute or time outdoors. The manual calculator works offline and requires no account.

– Choose Fahrenheit or Celsius
– Enter wind speed in MPH, KPH or knots
– See results in both degrees Fahrenheit and Celsius
– Learn when the wind chill formula applies
– Return to your last inputs
– Review your five most recent results

CHECK WEATHER FOR YOUR LOCATION

Explore U.S. weather with NOAA and National Weather Service observations and forecasts. Fetch weather when you need it, then check the source and observation time.

– Use Current Location or a saved place
– Keep favorite weather locations ready to select
– Use saved coordinates without location permission
– Review available temperature, wind, humidity and visibility
– See whether observations are fresh, aging or stale

LOOK AHEAD WITH FORECASTS

Daily and hourly forecasts help you compare the air temperature with the cold you may feel when the wind picks up.

– Browse daily forecast periods
– Check hourly temperature, wind and precipitation
– View air temperature and calculated wind chill together
– Follow separate temperature and wind chill chart lines
– Switch hourly temperatures between Fahrenheit and Celsius
– See an "as low as" estimate when forecast wind varies

PLAN WITH SNOWDAY

Put winter conditions in one place for a useful planning check. The compact Weather section gets you to the inputs quickly, with detailed guidance in the top-right Help view.

– Fetch available weather and calculate in one step
– Enter or adjust all five conditions yourself
– Keep your manual values when fetching weather
– Use inputs truncated to one decimal place
– Review estimated snow and liquid for 24 hours
– Look ahead with a 48-hour projection
– Review school, federal facility and road impact scores
– Share a readable summary of your results

SnowDay offers planning estimates, not official closure predictions. Its 48-hour figures project the 24-hour estimate.

COMPARE NEARBY WEATHER STATIONS

A nearby report can add useful context to a cold day. Browse NOAA stations around your selected location and inspect the measurements they provide.

– Search by station name or identifier
– Compare distance and observation age
– Sort by wind chill or available data
– Open temperature, wind, pressure and visibility details

KEEP A RECORD

Save useful checks and revisit them when you want to compare conditions.

– Save manual calculations and weather-based records
– Search records by location, result or station
– Filter your saved entries
– Share a result or email a summary
– Import and export JSON records
– Export CSV files for a spreadsheet

ON IPHONE, IPAD AND APPLE WATCH

– Familiar tabs on iPhone and a sidebar on iPad
– Support for larger text and VoiceOver
– Light and dark appearances
– Cached Home Screen weather widgets with Pro
– An offline Apple Watch calculator
– Records saved locally on your watch, with individual sharing

START FREE, ADD PRO WHEN YOU WANT MORE

The manual calculator, recent results, Help and offline Watch tools are included. Try three free iPhone weather fetches on this device. Pro adds unlimited fetches, forecasts, Hourly, stations, saved places, records, SnowDay and widgets. Choose Monthly Pro or a Lifetime purchase, with Restore Purchases available.

Weather can be delayed or unavailable. Check official forecasts, warnings, school announcements and road information before making plans.

For monthly subscriptions:
Monthly Pro is a 1-month auto-renewable subscription.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

App Store Screenshots

Wind Chill, Snow Day Pro App Store iphone screenshot 1
Wind Chill, Snow Day Pro App Store iphone screenshot 1
Wind Chill, Snow Day Pro App Store iphone screenshot 2
Wind Chill, Snow Day Pro App Store iphone screenshot 2
Wind Chill, Snow Day Pro App Store iphone screenshot 3
Wind Chill, Snow Day Pro App Store iphone screenshot 3
Wind Chill, Snow Day Pro App Store ipad screenshot 1
Wind Chill, Snow Day Pro App Store ipad screenshot 1
Wind Chill, Snow Day Pro App Store ipad screenshot 2
Wind Chill, Snow Day Pro App Store ipad screenshot 2

Latest App Store Release Notes

Thank you for using Wind Chill to check the cold before heading out. You plan ahead, and that care makes a difference to your day. This update gives SnowDay a tidier layout, simpler controls and more consistent numbers, so you can spend less time working through the screen.

A MORE COMPACT SNOWDAY

The top Weather section takes up less room, bringing the conditions and calculation closer to hand.

– Choose Current Location or a saved place from the compact source row.
– See the weather status without working through a long introduction.
– Fetch available conditions and calculate from one button.
– Reach temperature, wind, visibility, precipitation chance and liquid inputs sooner.
– Keep useful weather notes and missing-data messages beside the fetch controls.

HELP WHERE YOU EXPECT IT

The longer instructions now live in SnowDay Help, available from the top right. Open it when you want the details, then return to your inputs.

– Learn what each condition contributes to the estimate.
– Understand liquid-water equivalent and snow-to-liquid ratios.
– See how the 24-hour figures relate to the 48-hour projection.
– Find answers about location access, manual entry and recalculating.
– Review the limits of school, federal facility and road impact scores.

ONE DECIMAL PLACE FOR INPUTS

SnowDay now keeps fetched weather and manual entries to one decimal place across all five condition fields. Extra decimal digits are removed without rounding up.

– 12.39 becomes 12.3.
– A negative temperature such as -12.39 becomes -12.3.
– Temperature, wind, visibility, precipitation chance and liquid follow the same rule.
– Calculations use the numbers shown in the fields.
– Typed and pasted values follow the same format.
– Help explains what happens when a small liquid amount becomes 0.0 inches.

A positive liquid amount below 0.1 inches becomes zero. SnowDay then uses its precipitation-chance fallback, so check the liquid field before calculating when small amounts matter.

SIMPLER ACTIONS, FAMILIAR TABS

SnowDay buttons now use clear text labels. The tab symbols remain, so your usual routes through the app stay easy to recognize.

– Fetch Weather & Calculate tells you what happens next.
– Calculate is easy to find below your condition fields.
– Share Results offers a readable summary of an estimate.
– Open Help at the top right whenever you need guidance.
– Text labels keep the focus on the action you want to take.

KEEP YOUR MANUAL CHANGES

You can still combine fetched weather with values you enter yourself. Refresh the available weather while keeping your manual choices.

– Keep a temperature or wind value you entered.
– Retain your visibility, precipitation chance or liquid amount.
– Read a note identifying manual values that were preserved.
– Fill missing conditions before running a calculation.
– Use the same selected weather source across SnowDay, Forecast and Hourly.

MORE TOOLS FOR COLD DAYS

Your other Wind Chill tools remain available, with Pro access required for advanced weather features.

– Calculate wind chill offline from air temperature and wind speed.
– Choose Fahrenheit or Celsius and familiar wind units.
– Review U.S. NOAA and National Weather Service data where available.
– Compare forecast air temperature with calculated hourly wind chill.
– Check nearby stations and observation times.
– Save places, revisit records and share useful details.
– Use the Apple Watch calculator offline.

SnowDay is a planning aid. Its impact scores are estimates, and the 48-hour outlook is a projection rather than a separate forecast. Check official school and workplace announcements, road information and current weather warnings before making plans.

App Store Information

  • App Store category: Weather
  • Genres: Weather, Travel
  • Availability: Free
  • Current version: 8.2
  • Requires: iOS 17.6 or later
  • Content rating: 4+
  • Last updated: 2026-10-18

Developed by Verosocial. App details can change; verify the current App Store listing before publication.