Local Forecast

St. Helena, CA Weather Forecast & Alerts

Current conditions, 5-day forecast, active weather alerts for St. Helena, CA

No Active Alerts

Hour-by-Hour  Current Observation

Friday 5:45 AM PDTFriday 5:45 AM

°F °C
Regional Observations →
46°F

Fog/Mist

  • 73° / 46° High / Low
  • 46° Feels Like
  • 0% Chance of Rain

Wind

0 mph

N

UV Index

0

None

Humidity

100%

Dew 46°F

Sun

7:29 AM · 6:17 PM

Rise · Set

Source: SANTA ROSA (KSTS). Slider scrubs the next 12 hours.

5-Day Outlook

Through Tuesday

Local Radar →

Friday

73° 46°

Overnight Fog

Overnight: Forecast Missing

Detailed forecast

Friday

Areas of fog before 8am. Sunny. High near 72, with temperatures falling to around 70 in the afternoon. North northwest wind 1 to 8 mph.

Night

Mostly clear, with a low around 46. North northwest wind 2 to 10 mph, with gusts as high as 30 mph.

Saturday

77° 41°

Forecast Missing

Overnight: Forecast Missing

Detailed forecast

Saturday

Sunny, with a high near 77. North wind 0 to 6 mph.

Night

Mostly clear, with a low around 41. Wind around 0 mph.

Sunday

77° 41°

Forecast Missing

Overnight: Forecast Missing

Detailed forecast

Sunday

Mostly sunny, with a high near 76.

Night

Patchy fog after 4am. Partly cloudy, with a low around 41.

Monday

73° 39°

Forecast Missing

Overnight: Forecast Missing

Detailed forecast

Monday

Areas of fog before 9am. Mostly sunny, with a high near 72.

Night

Patchy fog after midnight. Mostly clear, with a low around 40.

Tuesday

71° 41°

Forecast Missing

Overnight: Forecast Missing

Detailed forecast

Tuesday

Patchy fog before 8am. Mostly sunny, with a high near 70.

Night

Patchy fog after 4am. Partly cloudy, with a low around 41.

St. Helena, CA Weather Analysis Tools