Another Round of Heavy Rain and Mountain Snow in California; Snow in the Great Lakes and Northeast

Another round of heavy rainfall will renew concerns for additional flash flooding and landslides in southern California around burn scars and coastal mountain ranges. A low pressure system is bringing enhanced snowfall downwind from the lower Great Lakes into the Northeast mountain ranges. Above average temperatures will challenge or break daily record high temperatures across the southern Plains. Read More >

Current conditions at

Mountain View, Moffett Field (KNUQ)

Lat: 37.40583°NLon: 122.04806°WElev: 33.0ft.

Mostly Cloudy

57°F

14°C

Humidity 82%
Wind Speed SSE 10 MPH
Barometer 29.76 in (1007.79 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 16 Nov 10:55 PM PST
Extended Forecast for

Sunnyvale CA

  • Tonight

    Tonight: Showers and possibly a thunderstorm.  Patchy fog after 2am. Low around 51. South southeast wind 6 to 16 mph becoming west southwest after midnight. Winds could gust as high as 30 mph.  Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 51 °F

    Showers and
    Patchy Fog

  • Monday

    Monday: Rain likely, mainly before 4pm.  Mostly cloudy, with a high near 58. West northwest wind 9 to 14 mph, with gusts as high as 22 mph.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 58 °F

    Rain Likely

  • Monday Night

    Monday Night: A chance of rain and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 10pm, then a slight chance of rain after 10pm.  Mostly cloudy, with a low around 47. West northwest wind 5 to 8 mph becoming calm  after midnight.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 47 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 60. Northwest wind 5 to 7 mph.

    High: 60 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 46. Light and variable wind.

    Low: 46 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain after 10pm.  Mostly cloudy, with a low around 49.

    Low: 49 °F

    Chance Rain

  • Thursday

    Thursday: A chance of rain.  Mostly cloudy, with a high near 60.

    High: 60 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A chance of rain, mainly before 10pm.  Partly cloudy, with a low around 46.

    Low: 46 °F

    Chance Rain

Detailed Forecast

Tonight
Showers and possibly a thunderstorm. Patchy fog after 2am. Low around 51. South southeast wind 6 to 16 mph becoming west southwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Rain likely, mainly before 4pm. Mostly cloudy, with a high near 58. West northwest wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
A chance of rain and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 10pm, then a slight chance of rain after 10pm. Mostly cloudy, with a low around 47. West northwest wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Mostly sunny, with a high near 60. Northwest wind 5 to 7 mph.
Tuesday Night
Mostly clear, with a low around 46. Light and variable wind.
Wednesday
Mostly sunny, with a high near 61.
Wednesday Night
A 30 percent chance of rain after 10pm. Mostly cloudy, with a low around 49.
Thursday
A chance of rain. Mostly cloudy, with a high near 60.
Thursday Night
A chance of rain, mainly before 10pm. Partly cloudy, with a low around 46.
Friday
Mostly sunny, with a high near 63.
Friday Night
Mostly clear, with a low around 45.
Saturday
Sunny, with a high near 64.
Saturday Night
Mostly clear, with a low around 46.
Sunday
Mostly sunny, with a high near 65.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Sunnyvale CA
 37.38°N 122.05°W (Elev. 118 ft)
6:51 pm PST Nov 16, 2025
11pm PST Nov 16, 2025-6pm PST Nov 23, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database