Birmingham Heat Index Today
Updated planning preview · 6:00 PM forecast from WeatherAPI
Heat index
107°F
Very high
Reschedule strenuous activity when possible.
Temperature
99°F
Humidity
36%
Estimated WBGT
30.9°C
UV index
0.6
Best outdoor window
7:00 AM–11:00 AM
Lowest combined heat and UV load in the available hourly preview.
Hourly heat risk
WBGT values are labeled as modeled estimates until a provider supplies measured readings.
| Time | Temperature | Heat index | Estimated WBGT | UV | Risk |
|---|---|---|---|---|---|
| 6 PM | 99°F | 107°F | 30.9°C | 0.6 | Very high |
| 7 AM | 71°F | 76°F | 21.9°C | 0.2 | Low |
| 9 AM | 77°F | 80°F | 23.7°C | 2.6 | Low |
| 11 AM | 86°F | 88°F | 26.3°C | 7.4 | Moderate |
| 1 PM | 91°F | 94°F | 27.9°C | 9.4 | High |
| 3 PM | 93°F | 95°F | 27.8°C | 6.3 | High |
| 5 PM | 91°F | 93°F | 27.5°C | 1.6 | High |
| 7 PM | 87°F | 91°F | 27.1°C | 0.0 | High |
Today's outlook
In Birmingham, the highest modeled heat burden in this preview occurs around 6:00 PM. The recommended window is selected from the lowest combined risk score, temperature, and UV—not from generic city copy.
Three-day forecast
Thursday
Heat index up to 117°F
103° / 75°
Very highFriday
Heat index up to 95°F
93° / 71°
HighSaturday
Heat index up to 95°F
96° / 76°
HighToday in Birmingham
What changes across the day
Based on the available hourly WeatherAPI forecast
Peak heat index
107°F at 6:00 PM
The preview low is 76°F around 7:00 AM.
Feels-like difference
7°F above air temp
Current humidity is 36%, one input that changes evaporative cooling.
Peak UV
9.4 at 1:00 PM
UV and heat are separate hazards; the lowest-heat hour may still need sun protection.
Tomorrow's direction
22°F cooler tomorrow
Today's forecast range is 75–103°F.
Where these numbers come from
WeatherAPI supplies the forecast. HeatGuard calculates heat-index risk and models WBGT from forecast temperature, humidity and a daytime solar allowance. Modeled WBGT is not an on-site globe-thermometer reading.
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