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St. Helena, CA

Right Now
71°
Sunny
  • Humidity: 63%
  • Feels Like: 71°
  • Heat Index: 71°
  • Wind: 7 mph
  • Wind Chill: 71°
  • UV Index: 9 Very High
  • Sunrise: 05:45 AM
  • Sunset: 08:35:27 PM
  • Dew Point: 58°
  • Visibility: 10 mi

Today

Sunny. High 82F. Winds WSW at 10 to 20 mph.

Tonight

Partly to mostly cloudy. Low 58F. Winds SW at 10 to 15 mph.

Tomorrow

Some clouds in the morning will give way to mainly sunny skies for the afternoon. High around 80F. Winds WSW at 10 to 15 mph.

Next 12 Hours

Time
Temp
Precip
10 AM
72°
1%
10 AM
72°

Wind: WSW @ 7mph

Precip: 1% Chance

Humidity: 61%

Wind Chill: 72°

Heat Index: 72°

UV Index: 5 Moderate

Visibility: 10 mi

11 AM
75°
0%
11 AM
75°

Wind: WSW @ 7mph

Precip: 0% Chance

Humidity: 56%

Wind Chill: 75°

Heat Index: 75°

UV Index: 7 High

Visibility: 10 mi

12 PM
78°
0%
12 PM
78°

Wind: SW @ 10mph

Precip: 0% Chance

Humidity: 48%

Wind Chill: 78°

Heat Index: 78°

UV Index: 9 Very High

Visibility: 10 mi

1 PM
79°
0%
1 PM
79°

Wind: SW @ 11mph

Precip: 0% Chance

Humidity: 48%

Wind Chill: 79°

Heat Index: 80°

UV Index: 9 Very High

Visibility: 10 mi

2 PM
80°
0%
2 PM
80°

Wind: SW @ 12mph

Precip: 0% Chance

Humidity: 46%

Wind Chill: 80°

Heat Index: 81°

UV Index: 9 Very High

Visibility: 10 mi

3 PM
80°
0%
3 PM
80°

Wind: SW @ 12mph

Precip: 0% Chance

Humidity: 46%

Wind Chill: 80°

Heat Index: 81°

UV Index: 7 High

Visibility: 10 mi

4 PM
79°
0%
4 PM
79°

Wind: WSW @ 13mph

Precip: 0% Chance

Humidity: 47%

Wind Chill: 79°

Heat Index: 81°

UV Index: 5 Moderate

Visibility: 10 mi

5 PM
78°
0%
5 PM
78°

Wind: WSW @ 13mph

Precip: 0% Chance

Humidity: 50%

Wind Chill: 78°

Heat Index: 80°

UV Index: 3 Moderate

Visibility: 10 mi

6 PM
76°
0%
6 PM
76°

Wind: WSW @ 12mph

Precip: 0% Chance

Humidity: 53%

Wind Chill: 76°

Heat Index: 76°

UV Index: 1 Low

Visibility: 10 mi

7 PM
73°
1%
7 PM
73°

Wind: WSW @ 11mph

Precip: 1% Chance

Humidity: 58%

Wind Chill: 73°

Heat Index: 73°

UV Index: 0 Low

Visibility: 10 mi

8 PM
70°
3%
8 PM
70°

Wind: WSW @ 10mph

Precip: 3% Chance

Humidity: 66%

Wind Chill: 70°

Heat Index: 70°

UV Index: 0 Low

Visibility: 10 mi

9 PM
66°
6%
9 PM
66°

Wind: WSW @ 8mph

Precip: 6% Chance

Humidity: 77%

Wind Chill: 66°

Heat Index: 66°

UV Index: 0 Low

Visibility: 8 mi

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