When should I run today, and how fast?
Run Score right now: New York City 80 London 56 Los Angeles 93 Sydney 84 Tokyo 89
RunWeather checks heat, dew point, wind and sun for every hour, then tells you when to go and what pace to expect.
- ★★★★★5.080+ ratings
- 2,950+runners
- 100countries
On a computer? Scan with your phone camera to get the app.
Works with Apple Health5-star reviews from the App Store and Google Play
“I use this app everyday to plan my runs. I never realized how much the weather could affect my pace until I got this app.”
“It was immensely helpful to set reasonable expectations for each run and prepare properly. I’ve come out of summer a much stronger runner!”
“Not just the best run planning app for weather I've ever seen, but maybe the best weather app for any activity for going outdoors. …”
“I expected to download it and delete it after my first run but now I check it after every run!”
“Weather info on race day, race map, pace and fueling planning and weather impact on your race outcome are critical information points that justify the subscription price!”
“I’ve tried a few weather apps over the years, but RunWeather is the first one actually built for runners, not just generic forecasts. …”
“Makes me feel better about some of these runs I struggle with. …”
“A lovely discovery. This app helps me choose when to run and understand my times in relation to the weather.”
“i just needed an app to tell me if it's agood time to run and it does that perfectly. …”
“Design is super nice, easy to use, it’s free and there are no ads”
“Sleek design and very functional! Basically takes weather and adjacent data like temperature and gives you nice analytics for your runs. …”
“As an experienced runner, I am just discovering this app. Honestly, it is really well made. …”
“Strava with weather channel in one app at your disposal! I recommend to everyone.”
“Tracking my runs used to be a pain, but this app makes it so simple. I actually enjoy looking back at my stats now.”
“I use it everyday, helps a lot during this summer”
“So much easy to use this then to check I don't know how many times my usual weather app”
“I donwload it and I was surprised how user-friendly it is. Love it!”
“I've used this app for all of 10 minutes and I'm already fully on board!”
“super nice graphics and user friendly, would be great to have it also for cycling”
Swipe for more reviews.
Race day
Racing soon? See what race morning could cost your finish.
Pick your race and see its usual race-morning weather, weeks before the gun.
The forecast looked fine. The run did not.
Temperature alone does not explain a hard run. Heat, dew point, wind, and timing all change how a run feels, but most weather apps leave runners to guess.
Why was 7 am easy and 2 pm hard?
Same route, same legs. On this Austin day the weather adds 2 seconds a mile at 7 am and 41 seconds a mile at 2 pm.
When should I go?
Every hour gets a Run Score. That day’s best was 7 am at 94.
7 am · score 94
2 pm · +0:41 /mi
Why does 82°F feel this hard?
Sun and humidity count as much as the thermometer. Tap any hour and the app shows what’s against you and how much slower the same effort runs. On that Austin afternoon: 6.8%.
After the run
What did the weather cost your last run?
Connect Strava and every run gets a weather verdict and a weather-adjusted pace: what it was worth on a cool, still day, so a slow run reads as weather, not lost fitness. Free for your latest run, every run with Pro.
Free to use. No account, no card.
Free$0
- Run Score for every hour of the next 3 days
- Best time to run each day
- What the weather cost you on your latest run
- No account, no card.
Want more? Pro adds all 7 days, every run explained and a race-day pace plan. $39.99 a year ($3.33 a month) or $6.99 a month, 7 days free in the app.
Trial for first-time subscribers. You pay the price shown in the App Store or Google Play.
Questions runners ask
What does RunWeather cost?
RunWeather is free to download and use for Run Scores, best windows, and daily planning. Pro is an optional subscription at $39.99 per year or $6.99 per month, and adds weather-adjusted pace, Strava history with weather context, and personalized pattern insights.
Is Garmin supported?
Yes. Connect Garmin and every run you record syncs on its own. Strava and Apple Health work too.
Do I need Strava?
No. Daily planning works without it: Run Scores, best windows, and pace guidance need no account at all. Connecting Strava is optional and adds historical weather context and deeper insights across your completed runs.
How is this different from Apple Weather or Garmin weather?
General weather tools show the forecast. RunWeather translates weather into running effort context, including best windows, pace adjustment suggestions, and explanations tied to heat, dew point, wind, and precipitation.
Do you sell my data?
No. RunWeather does not sell your data. Sync is optional, and the purpose is to give you better training context, not to monetize your activity history.
