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

Heavy Lake Effect Snow Downwind of Lakes Erie and Ontario; Fire Weather Concerns in the Southern Plains and Southeast

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. There is increasing confidence in snow squalls causing bursts of snow & gusty winds on New Year's Eve. Elevated fire weather conditions will continue today over parts of the Southern Plains and across much of the Southeast U.S. Read More >

Hazardous Weather Conditions

Current conditions at

Sacramento Mather Airport (KMHR)

Lat: 38.55996°NLon: 121.28397°WElev: 92.0ft.

Fog

37°F

3°C

Humidity 100%
Wind Speed NNW 5 MPH
Barometer 30.26 in (1024.72 mb)
Dewpoint 37°F (3°C)
Visibility -0.25 mi
Wind Chill33°F (1°C)
Last update 30 Dec 08:55 AM PST
Extended Forecast for

Mather Afb CA

Dense Fog Advisory until December 30, 12:00pm
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until December 30, 12:00pm

    NOW until 12:00pm Tue

    Dense Fog Advisory

  • Today

    High: 50 °F

    Areas Dense
    Fog

  • Tonight

    Tonight: Widespread dense fog, mainly after 9pm. Otherwise, cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Dense Fog

  • Wednesday

    Wednesday: A 30 percent chance of rain after 10am. Cloudy, with a high near 50. Calm wind. New precipitation amounts of less than a tenth of an inch possible.

    High: 50 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain. Low around 49. Calm wind. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 49 °F

    Rain

  • New Year's Day

    New Year's Day: Rain. High near 56. South southeast wind 3 to 7 mph. Chance of precipitation is 90%.

    High: 56 °F

    Rain

  • Thursday Night

    Thursday Night: Rain. Low around 54. Chance of precipitation is 90%.

    Low: 54 °F

    Rain

  • Friday

    Friday: Showers and possibly a thunderstorm before 4pm, then rain and possibly a thunderstorm after 4pm. High near 58. Chance of precipitation is 80%.

    High: 58 °F

    Showers

  • Friday Night

    Friday Night: Rain. Cloudy, with a low around 49.

    Low: 49 °F

    Rain

Detailed Forecast

Today
Areas of dense fog before 3pm, then patchy dense fog after 4pm. Otherwise, increasing clouds, with a high near 50. Light north northwest wind.
Tonight
Widespread dense fog, mainly after 9pm. Otherwise, cloudy, with a low around 43. Calm wind.
Wednesday
A 30 percent chance of rain after 10am. Cloudy, with a high near 50. Calm wind. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain. Low around 49. Calm wind. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
New Year's Day
Rain. High near 56. South southeast wind 3 to 7 mph. Chance of precipitation is 90%.
Thursday Night
Rain. Low around 54. Chance of precipitation is 90%.
Friday
Showers and possibly a thunderstorm before 4pm, then rain and possibly a thunderstorm after 4pm. High near 58. Chance of precipitation is 80%.
Friday Night
Rain. Cloudy, with a low around 49.
Saturday
Rain likely. Cloudy, with a high near 54.
Saturday Night
Rain likely, mainly before 10pm. Cloudy, with a low around 47.
Sunday
A chance of rain. Mostly cloudy, with a high near 54.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 45.
Monday
A chance of rain. Mostly cloudy, with a high near 52.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mather Afb CA
 38.56°N 121.29°W (Elev. 89 ft)
Last Update:
1:21 am PST Dec 30, 2025
Forecast Valid:
9am PST Dec 30, 2025-6pm PST Jan 5, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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