Weather in Saint Helena, California, United States

7-Day Detailed Weather Forecast for Saint Helena

Today

Temperature: 61°F

Wind Speed: 1 to 6 mph

Wind Direction: SSW

Forecast: Areas of fog and a chance of showers and thunderstorms before 10am, then patchy fog and showers and thunderstorms between 10am and 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then rain likely. Mostly cloudy. High near 61, with temperatures falling to around 59 in the afternoon. South southwest wind 1 to 6 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Tonight

Temperature: 43°F

Wind Speed: 1 to 5 mph

Wind Direction: W

Forecast: A chance of rain before 10pm, then areas of fog and a chance of rain. Mostly cloudy, with a low around 43. West wind 1 to 5 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.

Wednesday

Temperature: 66°F

Wind Speed: 3 mph

Wind Direction: SSW

Forecast: Areas of fog and a chance of rain before 11am. Mostly sunny, with a high near 66. South southwest wind around 3 mph. Chance of precipitation is 30%.

Wednesday Night

Temperature: 41°F

Wind Speed: 0 to 3 mph

Wind Direction: WNW

Forecast: Areas of fog after 2am. Mostly clear, with a low around 41. West northwest wind 0 to 3 mph.

Thursday

Temperature: 74°F

Wind Speed: 0 to 3 mph

Wind Direction: NNW

Forecast: Areas of fog before 8am. Sunny, with a high near 74. North northwest wind 0 to 3 mph.

Thursday Night

Temperature: 45°F

Wind Speed: 0 to 3 mph

Wind Direction: WNW

Forecast: Patchy fog after 4am. Mostly clear, with a low around 45.

Friday

Temperature: 75°F

Wind Speed: 0 to 5 mph

Wind Direction: SW

Forecast: Patchy fog before 7am. Sunny, with a high near 75.

Friday Night

Temperature: 46°F

Wind Speed: 1 to 5 mph

Wind Direction: SW

Forecast: Patchy fog after 3am. Partly cloudy, with a low around 46.

Saturday

Temperature: 70°F

Wind Speed: 1 to 6 mph

Wind Direction: SW

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

Saturday Night

Temperature: 47°F

Wind Speed: 1 to 6 mph

Wind Direction: SW

Forecast: Partly cloudy, with a low around 47.

Sunday

Temperature: 70°F

Wind Speed: 1 to 6 mph

Wind Direction: SW

Forecast: Mostly sunny, with a high near 70.

Sunday Night

Temperature: 47°F

Wind Speed: 0 to 6 mph

Wind Direction: WSW

Forecast: Patchy fog between 4am and 5am. Partly cloudy, with a low around 47.

Monday

Temperature: 72°F

Wind Speed: 0 to 5 mph

Wind Direction: WSW

Forecast: Mostly sunny, with a high near 72.

Monday Night

Temperature: 46°F

Wind Speed: 0 to 5 mph

Wind Direction: WNW

Forecast: Patchy fog after 4am. Partly cloudy, with a low around 46.