St. Helena, CA

Right Now
58°
Fair
  • Humidity: 79%
  • Feels Like: 58°
  • Heat Index: 58°
  • Wind: 3 mph
  • Wind Chill: 58°
  • UV Index: 10 Very High
  • Sunrise: 06:01:54 AM
  • Sunset: 08:30:34 PM
  • Dew Point: 51°
  • Visibility: 10 mi

Today

Sunny to partly cloudy. High near 90F. Winds SSW at 5 to 10 mph.

Tonight

A clear sky. Low 61F. Winds SW at 5 to 10 mph.

Tomorrow

Except for a few afternoon clouds, mainly sunny. High 89F. Winds SW at 10 to 15 mph.

Next 12 Hours

Time
Temp
Precip
4 AM
58°
0%
4 AM
58°

Wind: SW @ 2mph

Precip: 0% Chance

Humidity: 78%

Wind Chill: 58°

Heat Index: 58°

UV Index: 0 Low

Visibility: 9 mi

5 AM
58°
0%
5 AM
58°

Wind: WSW @ 2mph

Precip: 0% Chance

Humidity: 79%

Wind Chill: 58°

Heat Index: 58°

UV Index: 0 Low

Visibility: 9 mi

6 AM
57°
0%
6 AM
57°

Wind: WSW @ 1mph

Precip: 0% Chance

Humidity: 81%

Wind Chill: 57°

Heat Index: 57°

UV Index: 0 Low

Visibility: 10 mi

7 AM
59°
0%
7 AM
59°

Wind: SW @ 1mph

Precip: 0% Chance

Humidity: 83%

Wind Chill: 59°

Heat Index: 59°

UV Index: 0 Low

Visibility: 10 mi

8 AM
63°
0%
8 AM
63°

Wind: SSW @ 2mph

Precip: 0% Chance

Humidity: 75%

Wind Chill: 63°

Heat Index: 63°

UV Index: 1 Low

Visibility: 10 mi

9 AM
67°
0%
9 AM
67°

Wind: SSE @ 2mph

Precip: 0% Chance

Humidity: 66%

Wind Chill: 67°

Heat Index: 67°

UV Index: 2 Low

Visibility: 10 mi

10 AM
71°
0%
10 AM
71°

Wind: SSE @ 3mph

Precip: 0% Chance

Humidity: 59%

Wind Chill: 71°

Heat Index: 71°

UV Index: 4 Moderate

Visibility: 10 mi

11 AM
75°
0%
11 AM
75°

Wind: SSE @ 4mph

Precip: 0% Chance

Humidity: 50%

Wind Chill: 75°

Heat Index: 75°

UV Index: 7 High

Visibility: 10 mi

12 PM
80°
0%
12 PM
80°

Wind: SSE @ 4mph

Precip: 0% Chance

Humidity: 42%

Wind Chill: 80°

Heat Index: 81°

UV Index: 9 Very High

Visibility: 10 mi

1 PM
84°
0%
1 PM
84°

Wind: SSE @ 5mph

Precip: 0% Chance

Humidity: 38%

Wind Chill: 84°

Heat Index: 84°

UV Index: 10 Very High

Visibility: 10 mi

2 PM
87°
0%
2 PM
87°

Wind: S @ 7mph

Precip: 0% Chance

Humidity: 36%

Wind Chill: 87°

Heat Index: 87°

UV Index: 9 Very High

Visibility: 10 mi

3 PM
89°
0%
3 PM
89°

Wind: S @ 7mph

Precip: 0% Chance

Humidity: 34%

Wind Chill: 89°

Heat Index: 89°

UV Index: 8 Very High

Visibility: 10 mi