Is today a good day to go running? – live verdict
Find running hours with suitable feels-like temperatures, rain and wind.
Choose your location to load today’s verdict and its reason. No current verdict is available until the forecast loads.
What makes a good running day
Cool weather and hot weather do not affect a run in the same way. The running model gives particular weight to high feels-like temperatures, while also checking rain, gusts, fog and wintry weather. Thunderstorms and extreme heat can rule out a favourable result even when the rest of the forecast looks good.
Compare the hours you will actually spend outside, not only the departure time. An earlier or shorter run may fit a better window, but the score does not know your pace, fitness, clothing or access to shade and water. Surface ice and actual path conditions are not inspected. Treat the forecast as planning information, and adapt effort and hydration to your own circumstances.
| Changed input | Score | Verdict | Cap |
|---|---|---|---|
| Dry reference hour | 100/100 | GO | None |
| Feels-like 25°C | 86/100 | GO | None |
| Feels-like 29°C | 64/100 | MAYBE | MAYBE |
| Feels-like 33°C | 40/100 | NO-GO | NO-GO |
| Gusts 48 km/h | 64/100 | MAYBE | MAYBE |
| Gusts 60 km/h | 40/100 | NO-GO | NO-GO |
| Rain 0.3 mm/h | 80/100 | GO | None |
Each example changes only the listed inputs from a dry, clear reference hour: air and feels-like temperature 18°C, steady wind and gusts 10 km/h, visibility 10 km, no precipitation, 0% precipitation probability and UV 0. These illustrative results are calculated from the same scoring functions as the live tool. Several penalties can combine into a lower verdict.
A score of 70–100 is GO, 45–69 MAYBE, and 0–44 NO-GO. A MAYBE cap limits the effective score to 64, and a NO-GO cap to 40. These are the app’s suitability bands, not certified safe operating limits.
Heat is the runner's real enemy
The running model penalises heat earlier than several other activities. Feels-like above 28°C caps the result at MAYBE, and above 32°C at NO-GO. Those settings are not personal exposure limits. The score does not account for your health, acclimatisation, pace, shade or air quality.
Cold weather and surface conditions
A cold forecast and an icy surface are different things. The model scores temperature and weather codes, but cannot inspect the pavement. Do not read a GO as evidence that frost has cleared. Compare actual conditions with the forecast before deciding on the route.
Plan the whole outing
Check the full period you intend to run. Look at the temperature and gust values as well as the colour: a short sheltered run and a long exposed session are different decisions. Official heat, storm or air-quality warnings take precedence over the score.
The model does not know your health, acclimatisation, pace, shade, hydration or air quality. Apparent temperature is a weather input, not a personalised heat-risk calculation. Surface ice can remain even when the weather code no longer reports snow.
Forecast inputs: Open-Meteo Weather Forecast API. Scoring and limitations: GoNoGo methodology. Send corrections through Contact. Model explanations checked against the deployed scoring code on 14 September 2026.
Optional equipment references
These category links are not field-tested product reviews. Check fit, specifications and suitability independently; equipment does not override the weather verdict.
Affiliate disclosure: these Amazon links may earn us a commission at no extra cost to you. They are optional category searches, not tested product endorsements.
Running weather FAQ
What temperature is too hot to run?
There is no universal temperature below which a run is safe. This model caps above 28°C feels-like at MAYBE and above 32°C at NO-GO. It does not know the runner or the effort; follow official warnings and individual advice where relevant.
Is it OK to run in the rain?
Rain is one input, not a complete running assessment. Inspect wind, temperature, visibility and the surface too. Forecast rain ending does not show that puddles, flooding or slippery areas have disappeared.
How far ahead can I plan a run?
Use the seven-day view to compare possibilities, then check the full hourly period for the session. The best available block may still be MAYBE or NO-GO; the tool does not guarantee a good running window.
Prefer wheels or water? Try the cycling, hiking or motorcycle verdict, or start from the GoNoGo Weather home.