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St. Helena, CA

Right Now
48°
Mostly Cloudy
  • Humidity: 100%
  • Feels Like: 47°
  • Heat Index: 48°
  • Wind: 4 mph
  • Wind Chill: 47°
  • UV Index: 6 High
  • Sunrise: 07:02:19 AM
  • Sunset: 06:58:16 PM
  • Dew Point: 48°
  • Visibility: 9 mi

Today

Sun and clouds mixed. High 73F. Winds WSW at 10 to 15 mph.

Tonight

Some clouds. Low near 50F. Winds W at 5 to 10 mph.

Tomorrow

Sun and a few passing clouds. High around 80F. Winds NNW at 5 to 10 mph.

Next 12 Hours

Time
Temp
Precip
6 AM
49°
4%
6 AM
49°

Wind: W @ 4mph

Precip: 4% Chance

Humidity: 100%

Wind Chill: 48°

Heat Index: 49°

UV Index: 0 Low

Visibility: 3 mi

7 AM
50°
4%
7 AM
50°

Wind: W @ 3mph

Precip: 4% Chance

Humidity: 100%

Wind Chill: 50°

Heat Index: 50°

UV Index: 0 Low

Visibility: 3 mi

8 AM
52°
3%
8 AM
52°

Wind: W @ 3mph

Precip: 3% Chance

Humidity: 100%

Wind Chill: 52°

Heat Index: 52°

UV Index: 0 Low

Visibility: 5 mi

9 AM
58°
3%
9 AM
58°

Wind: W @ 3mph

Precip: 3% Chance

Humidity: 92%

Wind Chill: 58°

Heat Index: 58°

UV Index: 1 Low

Visibility: 8 mi

10 AM
62°
2%
10 AM
62°

Wind: W @ 5mph

Precip: 2% Chance

Humidity: 85%

Wind Chill: 62°

Heat Index: 62°

UV Index: 3 Moderate

Visibility: 10 mi

11 AM
65°
2%
11 AM
65°

Wind: WSW @ 7mph

Precip: 2% Chance

Humidity: 77%

Wind Chill: 65°

Heat Index: 65°

UV Index: 4 Moderate

Visibility: 10 mi

12 PM
67°
1%
12 PM
67°

Wind: WSW @ 8mph

Precip: 1% Chance

Humidity: 71%

Wind Chill: 67°

Heat Index: 67°

UV Index: 6 High

Visibility: 10 mi

1 PM
70°
2%
1 PM
70°

Wind: WSW @ 9mph

Precip: 2% Chance

Humidity: 67%

Wind Chill: 70°

Heat Index: 70°

UV Index: 6 High

Visibility: 10 mi

2 PM
71°
2%
2 PM
71°

Wind: SW @ 11mph

Precip: 2% Chance

Humidity: 66%

Wind Chill: 71°

Heat Index: 71°

UV Index: 6 High

Visibility: 10 mi

3 PM
71°
4%
3 PM
71°

Wind: SW @ 11mph

Precip: 4% Chance

Humidity: 68%

Wind Chill: 71°

Heat Index: 71°

UV Index: 4 Moderate

Visibility: 10 mi

4 PM
70°
16%
4 PM
70°

Wind: SW @ 11mph

Precip: 16% Chance

Humidity: 73%

Wind Chill: 70°

Heat Index: 70°

UV Index: 2 Low

Visibility: 10 mi

5 PM
67°
16%
5 PM
67°

Wind: SW @ 10mph

Precip: 16% Chance

Humidity: 79%

Wind Chill: 67°

Heat Index: 68°

UV Index: 1 Low

Visibility: 10 mi

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