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Arctic Air Mass Lingers for Areas of the East; Critical Fire Weather for the Plains; Active Weather Pattern for Hawaii

Arctic air lingers for the east, however, winds will slowly subside and a slow moderating trend starts during the week. Moisture continues to provide rainfall and higher elevation snow for the Pacific Northwest, northern California and northern Rockies through Monday. For the State of Hawaii, dangerous surf conditions with strong winds and heavy rainfall will impact the islands through Monday. Read More >

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

Lat: 37.61961°NLon: 122.36558°WElev: 10.0ft.

Clear

52°F

11°C

Humidity 87%
Wind Speed WNW 5 MPH
Barometer 30.26 in (1024.72 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 09 Feb 03:15 AM PST
Extended Forecast for

San Mateo CA

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 50. Light northwest wind.

    Low: 50 °F

    Patchy Fog

  • Monday

    Monday: Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 63. Northeast wind 5 to 7 mph.

    High: 63 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Monday Night

    Monday Night: A 30 percent chance of rain after 4am. Mostly cloudy, with a low around 48. Light and variable wind.

    Low: 48 °F

    Mostly Cloudy
    then Chance
    Rain

  • Tuesday

    Tuesday: Rain likely, then showers and possibly a thunderstorm after 1pm. High near 61. Calm wind becoming south 5 to 7 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 61 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 10pm, then rain, mainly after 10pm. Patchy fog after 5am. Low around 49. South southwest wind around 7 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 49 °F

    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: Rain likely before 10am, then showers likely and possibly a thunderstorm between 10am and 1pm, then rain likely after 1pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 59. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 59 °F

    Showers
    Likely and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 45.

    Low: 45 °F

    Chance Rain
    and Patchy
    Fog

  • Thursday

    Thursday: A slight chance of rain. Areas of fog before 9am. Otherwise, mostly sunny, with a high near 60.

    High: 60 °F

    Slight Chance
    Rain and
    Areas Fog

  • Thursday Night

    Thursday Night: Patchy fog after 3am. Otherwise, partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy
    then Patchy
    Fog

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 50. Light northwest wind.
Monday
Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 63. Northeast wind 5 to 7 mph.
Monday Night
A 30 percent chance of rain after 4am. Mostly cloudy, with a low around 48. Light and variable wind.
Tuesday
Rain likely, then showers and possibly a thunderstorm after 1pm. High near 61. Calm wind becoming south 5 to 7 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and possibly a thunderstorm before 10pm, then rain, mainly after 10pm. Patchy fog after 5am. Low around 49. South southwest wind around 7 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain likely before 10am, then showers likely and possibly a thunderstorm between 10am and 1pm, then rain likely after 1pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 59. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A 40 percent chance of rain. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 45.
Thursday
A slight chance of rain. Areas of fog before 9am. Otherwise, mostly sunny, with a high near 60.
Thursday Night
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 44.
Friday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 62.
Friday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 46.
Saturday
Rain likely. Patchy fog. Otherwise, mostly cloudy, with a high near 59.
Saturday Night
Rain likely. Mostly cloudy, with a low around 45.
Sunday
Rain likely. Mostly cloudy, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
San Mateo CA
 37.54°N 122.32°W (Elev. 194 ft)
Last Update:
12:53 am PST Feb 9, 2026
Forecast Valid:
3am PST Feb 9, 2026-6pm PST Feb 15, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation