Saint Helena, CA Weather Conditions
81°F 27°C
Feels Like 85°F / 29°C

Today's Weather in Saint Helena,CA
Listen to this weather report - press Read
- 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.
National Outlook
Rainy Days for Southern Texas and Storms in the Pacific Northwest
Rain and Snow Events from Gulf to Great Lakes Expected This Weekend
Tue Mar 25th 2025, 1:59pm PDT