St. Helena, CA

Right Now
66°
Clear
  • 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

Time
Temp
Precip
1 AM
66°
5%
1 AM
66°

Wind: SW @ 4mph

Precip: 5% Chance

Humidity: 74%

Wind Chill: 66°

Heat Index: 66°

UV Index: 0 Low

Visibility: 9 mi

2 AM
63°
5%
2 AM
63°

Wind: SW @ 2mph

Precip: 5% Chance

Humidity: 79%

Wind Chill: 63°

Heat Index: 63°

UV Index: 0 Low

Visibility: 8 mi

3 AM
62°
5%
3 AM
62°

Wind: SSW @ 2mph

Precip: 5% Chance

Humidity: 82%

Wind Chill: 62°

Heat Index: 62°

UV Index: 0 Low

Visibility: 7 mi

4 AM
60°
5%
4 AM
60°

Wind: SSW @ 1mph

Precip: 5% Chance

Humidity: 85%

Wind Chill: 60°

Heat Index: 60°

UV Index: 0 Low

Visibility: 6 mi

5 AM
58°
5%
5 AM
58°

Wind: SW @ 1mph

Precip: 5% Chance

Humidity: 90%

Wind Chill: 58°

Heat Index: 58°

UV Index: 0 Low

Visibility: 6 mi

6 AM
58°
5%
6 AM
58°

Wind: SW @ 1mph

Precip: 5% Chance

Humidity: 90%

Wind Chill: 58°

Heat Index: 58°

UV Index: 0 Low

Visibility: 6 mi

7 AM
58°
5%
7 AM
58°

Wind: S @ 1mph

Precip: 5% Chance

Humidity: 91%

Wind Chill: 58°

Heat Index: 58°

UV Index: 0 Low

Visibility: 7 mi

8 AM
62°
4%
8 AM
62°

Wind: S @ 2mph

Precip: 4% Chance

Humidity: 85%

Wind Chill: 62°

Heat Index: 62°

UV Index: 1 Low

Visibility: 9 mi

9 AM
65°
2%
9 AM
65°

Wind: S @ 2mph

Precip: 2% Chance

Humidity: 77%

Wind Chill: 65°

Heat Index: 65°

UV Index: 2 Low

Visibility: 10 mi

10 AM
70°
1%
10 AM
70°

Wind: S @ 3mph

Precip: 1% Chance

Humidity: 66%

Wind Chill: 70°

Heat Index: 70°

UV Index: 4 Moderate

Visibility: 10 mi

11 AM
76°
0%
11 AM
76°

Wind: S @ 4mph

Precip: 0% Chance

Humidity: 55%

Wind Chill: 76°

Heat Index: 76°

UV Index: 6 High

Visibility: 10 mi

12 PM
82°
0%
12 PM
82°

Wind: SSW @ 4mph

Precip: 0% Chance

Humidity: 47%

Wind Chill: 82°

Heat Index: 83°

UV Index: 8 Very High

Visibility: 10 mi

Get the daily forecast and severe weather alerts in your inbox!

* I understand and agree that registration on or use of this site constitutes agreement to its user agreement and privacy policy.

Get up-to-the-minute news sent straight to your device.

Topics

News Alerts

Breaking News