St. Helena, CA

Right Now
64°
Clear
  • Humidity: 69%
  • Feels Like: 64°
  • Heat Index: 64°
  • Wind: 5 mph
  • Wind Chill: 64°
  • UV Index: 10 Very High
  • Sunrise: 06:02:42 AM
  • Sunset: 08:29:51 PM
  • Dew Point: 53°
  • Visibility: 9 mi

Today

Sunny skies. High 88F. Winds SW at 10 to 15 mph.

Tonight

A few clouds overnight. Low 61F. Winds WSW at 5 to 10 mph.

Tomorrow

Some clouds in the morning will give way to mainly sunny skies for the afternoon. High near 90F. Winds WSW at 10 to 15 mph.

Next 12 Hours

Time
Temp
Precip
4 AM
63°
0%
4 AM
63°

Wind: WSW @ 4mph

Precip: 0% Chance

Humidity: 69%

Wind Chill: 63°

Heat Index: 63°

UV Index: 0 Low

Visibility: 10 mi

5 AM
63°
0%
5 AM
63°

Wind: WSW @ 4mph

Precip: 0% Chance

Humidity: 71%

Wind Chill: 63°

Heat Index: 63°

UV Index: 0 Low

Visibility: 10 mi

6 AM
62°
0%
6 AM
62°

Wind: WSW @ 4mph

Precip: 0% Chance

Humidity: 73%

Wind Chill: 62°

Heat Index: 62°

UV Index: 0 Low

Visibility: 10 mi

7 AM
64°
0%
7 AM
64°

Wind: W @ 3mph

Precip: 0% Chance

Humidity: 74%

Wind Chill: 64°

Heat Index: 64°

UV Index: 0 Low

Visibility: 10 mi

8 AM
68°
0%
8 AM
68°

Wind: WSW @ 3mph

Precip: 0% Chance

Humidity: 65%

Wind Chill: 68°

Heat Index: 68°

UV Index: 1 Low

Visibility: 10 mi

9 AM
71°
0%
9 AM
71°

Wind: WSW @ 3mph

Precip: 0% Chance

Humidity: 59%

Wind Chill: 71°

Heat Index: 71°

UV Index: 2 Low

Visibility: 10 mi

10 AM
75°
0%
10 AM
75°

Wind: WSW @ 3mph

Precip: 0% Chance

Humidity: 54%

Wind Chill: 75°

Heat Index: 75°

UV Index: 4 Moderate

Visibility: 10 mi

11 AM
78°
0%
11 AM
78°

Wind: SW @ 5mph

Precip: 0% Chance

Humidity: 51%

Wind Chill: 78°

Heat Index: 80°

UV Index: 7 High

Visibility: 10 mi

12 PM
82°
0%
12 PM
82°

Wind: WSW @ 6mph

Precip: 0% Chance

Humidity: 48%

Wind Chill: 82°

Heat Index: 83°

UV Index: 9 Very High

Visibility: 10 mi

1 PM
84°
0%
1 PM
84°

Wind: SW @ 7mph

Precip: 0% Chance

Humidity: 46%

Wind Chill: 84°

Heat Index: 86°

UV Index: 10 Very High

Visibility: 10 mi

2 PM
86°
0%
2 PM
86°

Wind: SW @ 9mph

Precip: 0% Chance

Humidity: 44%

Wind Chill: 86°

Heat Index: 88°

UV Index: 9 Very High

Visibility: 10 mi

3 PM
87°
0%
3 PM
87°

Wind: SW @ 10mph

Precip: 0% Chance

Humidity: 43%

Wind Chill: 87°

Heat Index: 89°

UV Index: 8 Very High

Visibility: 10 mi