St. Helena, CA

Right Now
57°
Partly Cloudy
  • Humidity: 90%
  • Feels Like: 57°
  • Heat Index: 57°
  • Wind: 2 mph
  • Wind Chill: 57°
  • UV Index: 9 Very High
  • Sunrise: 06:27:53 AM
  • Sunset: 07:58:45 PM
  • Dew Point: 55°
  • Visibility: 9 mi

Today

Some clouds in the morning will give way to mainly sunny skies for the afternoon. High 86F. Winds S at 5 to 10 mph.

Tonight

Clear to partly cloudy. Low 54F. Winds SW at 5 to 10 mph.

Tomorrow

Some clouds in the morning will give way to mainly sunny skies for the afternoon. High 87F. Winds SW at 5 to 10 mph.

Next 12 Hours

Time
Temp
Precip
1 AM
57°
0%
1 AM
57°

Wind: SSW @ 2mph

Precip: 0% Chance

Humidity: 92%

Wind Chill: 57°

Heat Index: 57°

UV Index: 0 Low

Visibility: 5 mi

2 AM
56°
0%
2 AM
56°

Wind: SSW @ 2mph

Precip: 0% Chance

Humidity: 92%

Wind Chill: 56°

Heat Index: 56°

UV Index: 0 Low

Visibility: 4 mi

3 AM
56°
0%
3 AM
56°

Wind: S @ 2mph

Precip: 0% Chance

Humidity: 93%

Wind Chill: 56°

Heat Index: 56°

UV Index: 0 Low

Visibility: 4 mi

4 AM
55°
0%
4 AM
55°

Wind: SSW @ 1mph

Precip: 0% Chance

Humidity: 96%

Wind Chill: 55°

Heat Index: 55°

UV Index: 0 Low

Visibility: 3 mi

5 AM
55°
1%
5 AM
55°

Wind: SW @ 1mph

Precip: 1% Chance

Humidity: 97%

Wind Chill: 55°

Heat Index: 55°

UV Index: 0 Low

Visibility: 3 mi

6 AM
55°
5%
6 AM
55°

Wind: SW @ 1mph

Precip: 5% Chance

Humidity: 97%

Wind Chill: 55°

Heat Index: 55°

UV Index: 0 Low

Visibility: 3 mi

7 AM
55°
6%
7 AM
55°

Wind: S @ 1mph

Precip: 6% Chance

Humidity: 97%

Wind Chill: 55°

Heat Index: 55°

UV Index: 0 Low

Visibility: 5 mi

8 AM
59°
7%
8 AM
59°

Wind: SSE @ 1mph

Precip: 7% Chance

Humidity: 91%

Wind Chill: 59°

Heat Index: 59°

UV Index: 1 Low

Visibility: 7 mi

9 AM
61°
5%
9 AM
61°

Wind: SE @ 2mph

Precip: 5% Chance

Humidity: 86%

Wind Chill: 61°

Heat Index: 61°

UV Index: 2 Low

Visibility: 9 mi

10 AM
64°
2%
10 AM
64°

Wind: SSE @ 3mph

Precip: 2% Chance

Humidity: 79%

Wind Chill: 64°

Heat Index: 64°

UV Index: 4 Moderate

Visibility: 10 mi

11 AM
68°
1%
11 AM
68°

Wind: SSE @ 4mph

Precip: 1% Chance

Humidity: 71%

Wind Chill: 68°

Heat Index: 68°

UV Index: 6 High

Visibility: 10 mi

12 PM
74°
0%
12 PM
74°

Wind: SSE @ 4mph

Precip: 0% Chance

Humidity: 58%

Wind Chill: 74°

Heat Index: 74°

UV Index: 8 Very High

Visibility: 10 mi

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