St. Helena, CA
Right Now
- Humidity: 74%
- Feels Like: 66°
- Heat Index: 66°
- Wind: 3 mph
- Wind Chill: 66°
- UV Index: 9 Very High
- Sunrise: 06:15:08 AM
- Sunset: 08:16:30 PM
- Dew Point: 57°
- Visibility: 9 mi
Today
Mainly sunny. High 91F. Winds S at 10 to 15 mph.
Tonight
Mainly clear early, then a few clouds later on. Low 57F. Winds SW at 10 to 15 mph.
Tomorrow
Partly cloudy skies. High 83F. Winds S at 10 to 15 mph.
Next 12 Hours
Wind: SW @ 4mph
Precip: 5% Chance
Humidity: 74%
Wind Chill: 66°
Heat Index: 66°
UV Index: 0 Low
Visibility: 9 mi
Wind: SW @ 2mph
Precip: 5% Chance
Humidity: 79%
Wind Chill: 63°
Heat Index: 63°
UV Index: 0 Low
Visibility: 8 mi
Wind: SSW @ 2mph
Precip: 5% Chance
Humidity: 82%
Wind Chill: 62°
Heat Index: 62°
UV Index: 0 Low
Visibility: 7 mi
Wind: SSW @ 1mph
Precip: 5% Chance
Humidity: 85%
Wind Chill: 60°
Heat Index: 60°
UV Index: 0 Low
Visibility: 6 mi
Wind: SW @ 1mph
Precip: 5% Chance
Humidity: 90%
Wind Chill: 58°
Heat Index: 58°
UV Index: 0 Low
Visibility: 6 mi
Wind: SW @ 1mph
Precip: 5% Chance
Humidity: 90%
Wind Chill: 58°
Heat Index: 58°
UV Index: 0 Low
Visibility: 6 mi
Wind: S @ 1mph
Precip: 5% Chance
Humidity: 91%
Wind Chill: 58°
Heat Index: 58°
UV Index: 0 Low
Visibility: 7 mi
Wind: S @ 2mph
Precip: 4% Chance
Humidity: 85%
Wind Chill: 62°
Heat Index: 62°
UV Index: 1 Low
Visibility: 9 mi
Wind: S @ 2mph
Precip: 2% Chance
Humidity: 77%
Wind Chill: 65°
Heat Index: 65°
UV Index: 2 Low
Visibility: 10 mi
Wind: S @ 3mph
Precip: 1% Chance
Humidity: 66%
Wind Chill: 70°
Heat Index: 70°
UV Index: 4 Moderate
Visibility: 10 mi
Wind: S @ 4mph
Precip: 0% Chance
Humidity: 55%
Wind Chill: 76°
Heat Index: 76°
UV Index: 6 High
Visibility: 10 mi
Wind: SSW @ 4mph
Precip: 0% Chance
Humidity: 47%
Wind Chill: 82°
Heat Index: 83°
UV Index: 8 Very High
Visibility: 10 mi
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