Running conditions
Is It Too Hot to Run in St. Louis Today?
Use the environmental risk signals below to adjust timing, intensity, shade, and recovery.
Forecast conditions
Good
Conditions support this activity with routine precautions.
Heat index
64°F
WBGT est.
12.7°C
UV
0.0
Hourly running conditions
| Time | Temperature | Heat index | Estimated WBGT | UV | Risk |
|---|---|---|---|---|---|
| 8 AM | 59°F | 59°F | 13.0°C | 0.2 | Low |
| 10 AM | 67°F | 67°F | 15.9°C | 2.0 | Low |
| 12 PM | 74°F | 75°F | 18.0°C | 4.6 | Low |
| 2 PM | 79°F | 77°F | 19.2°C | 4.6 | Low |
| 4 PM | 81°F | 78°F | 19.5°C | 2.0 | Low |
| 6 PM | 77°F | 75°F | 18.5°C | 0.2 | Low |
| 9 AM | 69°F | 69°F | 16.9°C | 0.7 | Low |
| 11 AM | 78°F | 78°F | 20.4°C | 3.3 | Low |
Three-day forecast
Monday
Heat index up to 76°F
78°F / 55°F
LowTuesday
Heat index up to 78°F
81°F / 57°F
LowWednesday
Heat index up to 86°F
89°F / 62°F
ModerateKnow when it's safer to run
HeatGuard can notify you as conditions improve and keep this location saved.