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St. Helena, CA

86°F
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St. Helena

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St. Helena, CA Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Winter Center
Today Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities
Friday, July 17

Day

7/17
90°Hi
RealFeel® 96°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
RealFeel Shade™ 89°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
Mostly sunny and warm

Max UV Index11.0 (Extreme)

WindS 2 mph

Wind Gusts4 mph

Probability of Precipitation10%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover15%

Morning

Afternoon

Night

7/17
57°Lo
RealFeel® 57°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
A crystal-clear sky

WindSSW 6 mph

Wind Gusts13 mph

Probability of Precipitation5%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover4%

Evening

Overnight

Sun & Moon

14 hrs 33 mins
Rise 5:59 AM
Set 8:32 PM
Waxing Crescent
Rise 9:49 AM
Set 10:47 PM

Temperature History

7/17
High
Low
Forecast
90°
57°
Average
89°
56°
Last Year
85°
55°
Record
108°
1961
44°
1936

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World North America United States California St. Helena

Weather Near St. Helena:

  • Oakland, CA
  • San Francisco, CA
  • San Jose, CA
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