Sacramento Heat Index Today
Updated planning preview · 4:00 PM forecast from WeatherAPI
Heat index
89°F
Moderate
Use normal heat precautions and take breaks.
Temperature
91°F
Humidity
26%
Estimated WBGT
25.2°C
UV index
3.8
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 |
|---|---|---|---|---|---|
| 4 PM | 91°F | 89°F | 25.2°C | 3.8 | Moderate |
| 6 PM | 87°F | 86°F | 24.3°C | 0.7 | Moderate |
| 7 AM | 60°F | 60°F | 15.8°C | 0.1 | Low |
| 9 AM | 68°F | 68°F | 18.2°C | 1.5 | Low |
| 11 AM | 79°F | 79°F | 21.1°C | 4.8 | Low |
| 1 PM | 88°F | 84°F | 23.4°C | 6.8 | Moderate |
| 3 PM | 91°F | 87°F | 24.2°C | 5.3 | Moderate |
| 5 PM | 88°F | 85°F | 23.6°C | 1.9 | Moderate |
Today's outlook
In Sacramento, the highest modeled heat burden in this preview occurs around 5:00 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 89°F
91° / 60°
ModerateFriday
Heat index up to 87°F
91° / 60°
ModerateSaturday
Heat index up to 99°F
100° / 58°
HighToday in Sacramento
What changes across the day
Based on the available hourly WeatherAPI forecast
Peak heat index
89°F at 4:00 PM
The preview low is 60°F around 7:00 AM.
Feels-like difference
2°F below air temp
Current humidity is 26%, one input that changes evaporative cooling.
Peak UV
6.8 at 1:00 PM
UV and heat are separate hazards; the lowest-heat hour may still need sun protection.
Tomorrow's direction
2°F cooler tomorrow
Today's forecast range is 60–91°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.
Keep planning
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