3 seconds. One answer.

When to run today.
Decided.

Stop scrolling
Know your best running window in 3 seconds.

Run Window app showing your best running window: Tomorrow 1 PM – 4 PM
Built for runners who run outside

The Decision, Removed.

Four ways Run Window hands you the answer — so the daily ritual of comparing forecasts ends.

One Answer Per Day

Today's best running hour, decided for you in 3 seconds. No more cross-referencing three weather apps.

Tuned To You

A quick quiz to start. Log how runs feel and your windows get sharper over time. Your conditions, not a generic "good weather" label.

Backup Windows

If the best hour doesn't fit your day, your second and third options are right there.

Weather Watch

Planned a run? We keep an eye on conditions. If something shifts before you head out, you'll know.

How It Works

Three steps. Then we hand you the verdict, every day.

1

Tell Us What You Like

Four quick scenarios — cold wind, high humidity, rain, overcast. We build your comfort profile in under a minute.

Run Window onboarding quiz with weather scenario cards
2

We Tell You When

Today's right hour, surfaced for you. Stop comparing forecasts.

Run Window showing best running window: Tomorrow 1 PM – 4 PM
3

We Watch the Weather

Save a window and we monitor conditions for you. If something shifts before your run, you’ll know.

Run Window weather watch showing conditions still looking good for planned run
From the App Store

No more guessing.

The verdict, in their words.

No more guessing!!

This app took the guessing game out of trying to figure out when to fit in my run around the unpredictable weather.

RC414@· App Store review

No more guessing!

This app has been a game changer! It helps me keep track of the best times to go for a run, which has made a huge impact on my routine!

Run in the sun· App Store review

5 Star

Get off the couch and move. This app is great for knowing the best weather and time of day to run!

The cool uncle1· App Store review
7-Day Free Trial

The verdict, or the ritual.

Pro hands you the daily verdict in 3 seconds. Without it, you’re back to comparing three weather apps every morning.

Best Value
Save 58%

Annual

$29.99/year
Just $2.50/month

Lock in the verdict for a year

  • Today's verdict, delivered each morning
  • Backup windows if today doesn’t fit
  • Weather watch on your planned runs
  • Tuned to how you actually feel
  • Knows your schedule
  • All 150+ city guides
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Monthly

$5.99/month

Pay as you go

  • Today's verdict, delivered each morning
  • Backup windows if today doesn’t fit
  • Weather watch on your planned runs
  • Tuned to how you actually feel
  • Knows your schedule
  • All 150+ city guides
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We Watch the Weather. You Just Run.

Your best hour to run, every day. Personalized to your comfort zone.

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16-day forecasts