Weather Forecast and Conditions for St. Helena, California 94574 - The Weather Channel | Weather.com
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45° Partly Cloudy Day
Partly Cloudy
Day 79° • Night 47°
Feels Like45°
Sunrise

7:23 am

Sunset

7:15 pm

Temperature
High / Low
79°/47°
Wind
1 mph
Humidity
Humidity
85%
Dew point
Dew Point
40°
Pressure
Pressure
30.14 in
UV index
UV Index
0 of 11
Visibility
Visibility
8 mi
Moon Phase - Day 24
Moon Phase
Waning Crescent

Hourly Weather-

Now

Mostly Clear Day Mostly Sunny
50°
Rain drop 1%
NNE 1 mph
Subtract

Mostly Sunny

  • Temperature feels like
    Feels Like50°
  • WindNNE 1 mph
  • Humidity
    Humidity78%
  • UV index
    UV Index1 of 11
  • Cloud
    Cloud Cover29%
  • Rain drop
    Rain Amount0 in

10 am

Mostly Clear Day Mostly Sunny
56°
Rain drop 0%
NNE 1 mph
Add

Mostly Sunny

  • Temperature feels like
    Feels Like56°
  • WindNNE 1 mph
  • Humidity
    Humidity67%
  • UV index
    UV Index2 of 11
  • Cloud
    Cloud Cover24%
  • Rain drop
    Rain Amount0 in

11 am

Partly Cloudy Day Partly Cloudy
62°
Rain drop 0%
N 1 mph
Add

Partly Cloudy

  • Temperature feels like
    Feels Like62°
  • WindN 1 mph
  • Humidity
    Humidity55%
  • UV index
    UV Index3 of 11
  • Cloud
    Cloud Cover30%
  • Rain drop
    Rain Amount0 in

12 pm

Partly Cloudy Day Partly Cloudy
71°
Rain drop 0%
WSW 2 mph
Add

Partly Cloudy

  • Temperature feels like
    Feels Like71°
  • WindWSW 2 mph
  • Humidity
    Humidity41%
  • UV index
    UV Index4 of 11
  • Cloud
    Cloud Cover46%
  • Rain drop
    Rain Amount0 in
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10 Day Weather-

Today

Partly Cloudy Day Partly Cloudy
79°/47°
Rain drop 1%
Subtract

Day

79°
Partly Cloudy Day
Rain drop
1%
W 6 mph

Partly cloudy. High 79F. Winds light and variable.

  • Humidity
    Humidity50%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:23 am
  • Sunset
    Sunset7:15 pm

Night

47°
Partly Cloudy Night
Rain drop
3%
W 5 mph

Some clouds. Low 47F. Winds light and variable.

  • Humidity
    Humidity70%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise4:32 am
  • Moonset
    Moonset1:44 pm
  • Moon Phase - Day 24 Waning Crescent

Sat 14

Mostly Clear Day Mostly Sunny
80°/51°
Rain drop 3%
Add

Day

80°
Mostly Clear Day
Rain drop
3%
NW 6 mph

Sunshine. High near 80F. Winds NW at 5 to 10 mph.

  • Humidity
    Humidity52%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:22 am
  • Sunset
    Sunset7:16 pm

Night

51°
Partly Cloudy Night
Rain drop
4%
NNW 5 mph

A few clouds from time to time. Low 51F. Winds light and variable.

  • Humidity
    Humidity72%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise5:10 am
  • Moonset
    Moonset2:49 pm
  • Moon Phase - Day 25 Waning Crescent

Sun 15

Partly Cloudy Day Partly Cloudy
87°/55°
Rain drop 2%
Add

Day

87°
Partly Cloudy Day
Rain drop
2%
NNW 5 mph

Partly cloudy skies in the morning will give way to cloudy skies during the afternoon. Near record high temperatures. High 87F. Winds light and variable.

  • Humidity
    Humidity36%
  • UV index
    UV Index4 of 11
  • Sunrise
    Sunrise7:20 am
  • Sunset
    Sunset7:16 pm

Night

55°
Partly Cloudy Night
Rain drop
2%
NNW 3 mph

A few clouds. Low near 55F. Winds light and variable.

  • Humidity
    Humidity59%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise5:42 am
  • Moonset
    Moonset3:55 pm
  • Moon Phase - Day 26 Waning Crescent

Mon 16

Mostly Clear Day Mostly Sunny
92°/55°
Rain drop 2%
Add

Day

92°
Mostly Clear Day
Rain drop
2%
NNW 4 mph

A few clouds early, otherwise mostly sunny. High 92F. Winds light and variable.

  • Humidity
    Humidity38%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:19 am
  • Sunset
    Sunset7:17 pm

Night

55°
Clear Night
Rain drop
4%
NNW 3 mph

Clear skies. Low around 55F. Winds light and variable.

  • Humidity
    Humidity67%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise6:11 am
  • Moonset
    Moonset5:03 pm
  • Moon Phase - Day 27 Waning Crescent
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