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

Tuesday 12:55 AM PDTTuesday 12:55 AM

°F °C
Regional Observations →
55°F

Clear

  • 91° / 57° High / Low
  • 55° Feels Like
  • 0% Chance of Rain

Wind

0 mph

N

UV Index

0

None

Humidity

94%

Dew 53°F

Sun

6:33 AM · 7:49 PM

Rise · Set

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

5-Day Outlook

Through Saturday

Local Radar →

Tuesday

91° 57°

Overnight Fog

Overnight: Forecast Missing

Detailed forecast

Tuesday

Patchy fog before 7am, then haze and patchy fog between 7am and 9am. Partly sunny. High near 90, with temperatures falling to around 88 in the afternoon. West southwest wind 0 to 8 mph.

Night

Mostly cloudy, with a low around 57. West wind 0 to 7 mph.

Wednesday

93° 59°

Forecast Missing

Overnight: Forecast Missing

Detailed forecast

Wednesday

Mostly sunny, with a high near 92. West southwest wind 1 to 10 mph.

Night

Mostly cloudy, with a low around 58. West wind 1 to 10 mph.

Thursday

93° 57°

Forecast Missing

Overnight: Forecast Missing

Detailed forecast

Thursday

Mostly sunny, with a high near 92.

Night

Mostly cloudy, with a low around 57.

Friday

89° 53°

Forecast Missing

Overnight: Forecast Missing

Detailed forecast

Friday

Mostly sunny, with a high near 89.

Night

Areas of fog after 3am. Partly cloudy, with a low around 53.

Saturday

89° 53°

Forecast Missing

Overnight: Forecast Missing

Detailed forecast

Saturday

Areas of fog before 9am. Sunny, with a high near 88.

Night

Areas of fog after 2am. Partly cloudy, with a low around 53.

St. Helena, CA Weather Analysis Tools