Saint Helena, CA Weather Conditions

Updated: Tue Mar 25th 2025 7:15 PM PDT
Sunny

81°F 27°C

Feels Like 85°F / 29°C

Saint Helena, CA  weather condition is Sunny and 81°F.

Today's Weather in Saint Helena,CA

The current weather in Saint Helena CA as of 7:15 PM PDT on Tue Mar 25th 2025, has a sky condition of Sunny with the visibility of 9 mile(s). It is 81 degrees fahrenheit but feels like 85 degrees. The barometric pressure is 29.87 - measured by inches of mercury - and is rising since its last observation. The humidity is 49 percent that's falling since the last report, with a dew point of 63 degrees fahrenheit which is falling. Wind direction is from the Southwest at 2.2 miles per hour, gusting at 2.8 miles per hour. Sunrise was at 7:05 AM and Sunset was at 7:27 PM. The moon phase is a Waning Crescent moon rising at 5:10 AM. Thank you for listening to the weather report from LocalConditions.com!

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  • Barometer 29.87 inHg. rising
  • Humidity 49% falling
  • Heat Index 73°F
  • Wind from SW. 2.2 mph
  • Wind Gust 2.8 miles per hour
  • Wind Chill 72°F
  • UV Index 0
  • Dew Point 63°F falling
  • Visibility 9 mi.
  • Sunrise 7:05 AM
  • Sunset 7:27 PM
  • Moonrise 5:10 AM
  • Moonset 3:16 PM
  • Moon Phase Waning Crescent Moon

Next 8 hours

Next 5 Days

Moderate Rain

Moderate Rain with a high of 54°F and a low of 44°F. Probable rainfall forecasted, having an 80% chance with an estimated 0.26in. Winds will be moderate, blowing around 12mph. Expect high humidity with levels above 80% to 96%.

High Low Hum. Rain Snow Wind
54°F 44°F 96 % 80% | est. 0.26in 0% 11.6 mph

Heavy Rain

Heavy Rain with a high of 53°F and a low of 45°F. Probable rainfall forecasted, having an 89% chance with an estimated 1.18in. Winds will be moderate, blowing around 15mph. Expect high humidity with levels above 80% to 97%.

High Low Hum. Rain Snow Wind
53°F 45°F 97 % 89% | est. 1.18in 0% 14.3 mph

Moderate Rain

Moderate Rain with a high of 52°F and a low of 40°F. Probable rainfall forecasted, having an 89% chance with an estimated 0.65in. Winds will be moderate, blowing around 14mph. Expect high humidity with levels above 80% to 90%.

High Low Hum. Rain Snow Wind
52°F 40°F 90 % 89% | est. 0.65in 0% 13.2 mph

Partly Cloudy

Partly Cloudy with a high of 63°F and a low of 37°F. Winds will be light at 8mph at times. The humidity will be on the higher side, reaching around 74%.

High Low Hum. Rain Snow Wind
63°F 37°F 74 % 0% 0% 7.2 mph

Patchy Rain Nearby

Patchy Rain Nearby with a high of 51°F and a low of 40°F. Probable rainfall forecasted, having an 83% chance with an estimated 0.03in. Winds will be moderate, blowing around 18mph. Expect high humidity with levels above 80% to 85%.

High Low Hum. Rain Snow Wind
51°F 40°F 85 % 83% | est. 0.03in 0% 17.2 mph

Weather Map

With the potential for severe weather, especially in areas prone to flooding and other adverse conditions, it's important to stay updated with local forecasts and advisories, check out the current and projected visualizations below for accurate Saint Helena, CA weather - as well as surrounding cities related to this location - which offers live data and granular precipitation, radar, barometric pressure, temperatures and wind speeds for today thru Saturday, as you toggle through each layer. Use the slider to move forward and back in time to view how current data and forecasts will affect the region; you can press or click on the map to show metrics available for each tab. The related timestamp is located above the Play button which will animate the forecasts. Be Well and Stay Safe!

Temperatures Today

 

The following chart reports hourly Saint Helena, CA temperatures that are past and forecasted for today, Tue Mar 25th 2025. The morning temperature of 59°F is lowest at 7am with the daytime high of 82°F at 3pm and a low around 58°F at 11pm is expected.

Barometric Pressure Today

 

The following chart reports hourly Saint Helena, CA barometric pressure that's past and forecasted for today, Tue Mar 25th 2025. The highest pressure of 30.03inHg at 12am and lowest being 29.86inHg at 6pm.

Wind Speeds Today

 

The following chart reports hourly Saint Helena, CA wind speed data that is past and forecasted for today, Tue Mar 25th 2025. The fastest wind is reported to be 4mph at 2pm, while the slowest is 1.3mph around 8pm; expect wind gusts peaking 8mph at 5am.

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