Now on iOS & Android · Strava sync
See what the weather does to your run.
Most apps show the forecast. RunWeather scores it 0 to 100 for running, finds today's best window, and shows what the weather adds to your pace.
Free to start · No account needed to check today's score · Strava is optional.
500+ runners in 20 countries
The problem
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.
01
You blamed yourself
for the wrong thing
Sometimes your pace dropped because of conditions, not fitness.
02
You picked the
wrong time to run
A few hours can make the difference between manageable and miserable.
03
You saw the weather,
not what it does to a run
Most apps show the forecast. They do not explain what it means for your effort.
The number
Every run has a weather-adjusted pace.
Heat, dew point, and wind add time to your pace whether you notice or not. RunWeather shows what your run was worth on a neutral day, before you go and after you finish, so a slow run reads as weather and not as lost fitness.
01
Before the run
What weather will add
What today’s heat, dew point, and wind are likely to add to your pace. Pick the hour that adds the least.
02
After the run
What weather added
What the conditions actually added, measured against the run you just finished, not a generic table.
03
Across the season
Your pattern
Which conditions slow you most, learned from your own runs rather than an average runner’s.
A worked example: it feels like 31°C and the dew point is high, so weather adds about +0:18 /km (+0:29 /mi) today. Aim for 5:20/km instead of 5:00 and the effort stays honest. Run Score: 45.
Product
Weather, translated into running decisions
RunWeather helps at three moments that matter: before the run, during interpretation, and across your training history.
Before you go
Pick a better time to run
Compare the hours ahead and choose the window most likely to feel manageable, before heat, dew point, and wind turn against you.
- Hour-by-hour run suitability
- Comfort and effort signals for every hour
- Faster decisions without weather guesswork
Same run. Different effort.
See what made today feel harder
RunWeather breaks conditions into runner-relevant signals, so you can understand whether heat, dew point, wind, or precipitation changed effort more than your legs did.
- Runner-focused weather signals, not raw forecast noise
- AI explanations grounded in real weather context
- Better interpretation of hard, slow, or surprisingly good runs
Across your training
Spot patterns in your history
Sync Strava to connect your running history with the conditions behind each effort, so you can stop confusing weather with fitness changes.
- Automatic Strava sync
- Historical weather context for past runs
- Deeper insights across your training history
Finally answer the question every runner asks: was I off, or was it just the weather?
Why I built it
Built by a runner who got tired of guessing
I run regularly, and I kept hitting the same problem: weather apps showed the forecast, but not what that forecast meant for the run itself. So I built RunWeather to turn weather into better running decisions, with engineering rigor and runner-first thinking.
01
Built by a runner
02
Engineered independently
03
Designed around effort, not generic forecasts
Integrations
Works with the tools runners already use
Connect your Strava history for deeper context today. Garmin support is planned next.
Strava
Available nowSync your runs to unlock weather-aware history, context, and personalized pattern insights across your training.
Garmin
PlannedPlanned support for syncing and analysis.
Strava sync adds context to your history. The daily planning tools work without connecting an account.
Pricing
Start free. Unlock deeper insight later.
RunWeather has a free plan for better day-to-day decisions, plus Pro for deeper analysis, history, and personalized insight. Start free and upgrade anytime.
Free
Free forever
$0
Essential daily planning with runner-focused weather context.
- Run Score and best time windows
- Core weather signals for runners
- Basic pace guidance
- Daily planning support
Pro
Billed yearly
$29.99/year
Deeper historical analysis, personalization, and weather-aware patterns. Also available at $4.99/month.
- Weather-adjusted pace: what your run was worth on a neutral day
- Strava history with weather context
- Personalized pattern insights
- Personal thresholds and smarter recommendations
- Deeper planning for workouts and race days
Pro is $29.99/year or $4.99/month. Start free and upgrade anytime in the app. The price you pay is the one shown at checkout.
Why runners use it
Built around the questions you actually ask
The questions every runner asks, and the reason RunWeather exists.
500+ runners in 20 countries
While I began running decades ago, having objective data on weather conditions and the impact they have on training/racing is still very valuable.
01
Should I run now, or wait a few hours?
02
Was that run hard because of me, or because of the weather?
03
Do conditions explain my slow runs, without me doing the math?
FAQ
Frequently asked questions
What runners usually want to know before getting started.
