National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Snow in the Sierra Nevada; Heavy Rainfall in Texas Sunday

Heavy snow is expected in the Sierra Nevada mountain ranges into Saturday causing hazardous travel conditions. Winter Storm Warnings have been issued. Thunderstorms and moderate to heavy rainfall are expected across portions of eastern Texas into Louisiana on Sunday. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

Lat: 38.5°NLon: 122.81667°WElev: 125.0ft.

Rain

61°F

16°C

Humidity 69%
Wind Speed SSE 5 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 14 Nov 01:53 PM PST
Extended Forecast for

4 Miles W Saint Helena CA

  • This Afternoon

    This Afternoon: A 20 percent chance of showers. Mostly cloudy, with a high near 55. South wind around 5 mph.

    High: 55 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A slight chance of showers before 7pm, then a slight chance of rain after 5am. Cloudy, with a temperature rising to around 58 by 5am. Light south wind increasing to 6 to 11 mph in the evening. Winds could gust as high as 18 mph. Chance of precipitation is 10%.

    Low: 51 °F⇑

    Mostly Cloudy
    then Slight
    Chance Rain

  • Sunday

    Sunday: Rain. Temperature falling to around 50 by 4pm. South southeast wind 10 to 15 mph becoming light and variable in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 60 °F⇓

    Rain

  • Sunday Night

    Sunday Night: Rain, mainly before 10pm. Low around 48. West northwest wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Rain then
    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 53. West wind 3 to 6 mph.

    High: 53 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Rain, mainly after 10pm. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Rain

  • Wednesday

    Wednesday: Rain before 4pm, then showers and possibly a thunderstorm after 4pm. Cloudy, with a high near 55.

    High: 55 °F

    Showers

Detailed Forecast

This Afternoon
A 20 percent chance of showers. Mostly cloudy, with a high near 55. South wind around 5 mph.
Tonight
A slight chance of showers before 7pm, then a slight chance of rain after 5am. Cloudy, with a temperature rising to around 58 by 5am. Light south wind increasing to 6 to 11 mph in the evening. Winds could gust as high as 18 mph. Chance of precipitation is 10%.
Sunday
Rain. Temperature falling to around 50 by 4pm. South southeast wind 10 to 15 mph becoming light and variable in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Rain, mainly before 10pm. Low around 48. West northwest wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Mostly sunny, with a high near 53. West wind 3 to 6 mph.
Monday Night
Mostly clear, with a low around 41.
Tuesday
Sunny, with a high near 51.
Tuesday Night
Rain, mainly after 10pm. Mostly cloudy, with a low around 46.
Wednesday
Rain before 4pm, then showers and possibly a thunderstorm after 4pm. Cloudy, with a high near 55.
Wednesday Night
Showers and possibly a thunderstorm before 10pm, then rain after 10pm. Mostly cloudy, with a low around 45.
Thursday
Rain. Mostly cloudy, with a high near 50.
Thursday Night
A chance of rain. Partly cloudy, with a low around 43.
Friday
Mostly sunny, with a high near 52.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Saint Helena CA
 38.5°N 122.54°W (Elev. 1998 ft)
Last Update:
12:46 pm PST Nov 14, 2026
Forecast Valid:
2pm PST Nov 14, 2026-6pm PST Nov 20, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation