Fresno WBGT Today — Wet Bulb Globe Temperature
Updated planning preview · 4:00 PM forecast from WeatherAPI
Estimated WBGT
30.4°C
Extreme
Stop or relocate strenuous activity unless a qualified protocol says otherwise.
Temperature
111°F
Humidity
13%
Heat index
114°F
UV index
4.6
Best outdoor window
7:00 AM–11:00 AM
Lowest combined heat and UV load in the available hourly preview.
Hourly WBGT
WBGT values are labeled as modeled estimates until a provider supplies measured readings.
| Time | Temperature | Heat index | Estimated WBGT | UV | Risk |
|---|---|---|---|---|---|
| 4 PM | 111°F | 114°F | 30.4°C | 4.6 | Very high |
| 6 PM | 104°F | 103°F | 27.6°C | 0.8 | Very high |
| 7 AM | 76°F | 76°F | 19.0°C | 0.2 | Low |
| 9 AM | 81°F | 78°F | 20.4°C | 2.0 | Low |
| 11 AM | 88°F | 84°F | 22.7°C | 5.8 | Moderate |
| 1 PM | 96°F | 92°F | 24.9°C | 8.8 | High |
| 3 PM | 99°F | 97°F | 25.9°C | 5.7 | High |
| 5 PM | 102°F | 101°F | 26.3°C | 2.1 | High |
Today's outlook
In Fresno, 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 114°F
111° / 70°
Very highFriday
Heat index up to 101°F
102° / 76°
HighSaturday
Heat index up to 105°F
105° / 73°
Very highToday in Fresno
What changes across the day
Based on the available hourly WeatherAPI forecast
Peak heat index
114°F at 4:00 PM
The preview low is 76°F around 7:00 AM.
Feels-like difference
4°F above air temp
Current humidity is 13%, one input that changes evaporative cooling.
Peak UV
8.8 at 1:00 PM
UV and heat are separate hazards; the lowest-heat hour may still need sun protection.
Tomorrow's direction
13°F cooler tomorrow
Today's forecast range is 70–111°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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