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

Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

Current conditions at

BRITTON (KBTN)

Lat: 45.82°NLon: 97.74°WElev: 1318ft.

Mostly Cloudy

36°F

2°C

Humidity 100%
Wind Speed S 12 mph
Barometer 29.76 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 25 Dec 11:55 am CST
Extended Forecast for

Lake City SD

Dense Fog Advisory December 25, 12:09pm until December 25, 03:00pm
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory December 25, 12:09pm until December 25, 03:00pm

    NOW until 3:00pm Thu

    Dense Fog Advisory

  • Christmas Day

    High: 36 °F

    Slight Chance
    Rain and
    Areas Fog

  • Tonight

    Tonight: A slight chance of rain before 10pm. Patchy fog before 4am. Otherwise, mostly cloudy, with a low around 22. South wind 8 to 10 mph becoming north northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    Low: 22 °F

    Slight Chance
    Rain and
    Patchy Fog
    then Areas
    Fog

  • Friday

    Friday: Patchy fog after 9am. Otherwise, partly sunny, with a high near 33. Northwest wind 6 to 8 mph becoming south in the afternoon.

    High: 33 °F

    Patchy Fog

  • Friday Night

    Friday Night: Areas of fog before 7pm. Otherwise, mostly cloudy, with a low around 27. South wind 7 to 10 mph.

    Low: 27 °F

    Areas Fog
    then Partly
    Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 37. South southwest wind around 9 mph becoming northwest in the afternoon.

    High: 37 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of snow after midnight. Mostly cloudy, with a low around 6. Blustery, with a north northwest wind 10 to 15 mph increasing to 16 to 21 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 20%.

    Low: 6 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    and Blustery

  • Sunday

    Sunday: A slight chance of snow before noon. Mostly cloudy, with a high near 11. Blustery, with a northwest wind 21 to 24 mph, with gusts as high as 41 mph. Chance of precipitation is 20%.

    High: 11 °F

    Blustery.
    Slight Chance
    Snow then
    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around -2. Blustery, with a northwest wind 14 to 22 mph, with gusts as high as 37 mph.

    Low: -2 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

Detailed Forecast

Christmas Day
A slight chance of rain after 5pm. Areas of fog. Otherwise, mostly cloudy, with a high near 36. South wind 10 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Tonight
A slight chance of rain before 10pm. Patchy fog before 4am. Otherwise, mostly cloudy, with a low around 22. South wind 8 to 10 mph becoming north northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Friday
Patchy fog after 9am. Otherwise, partly sunny, with a high near 33. Northwest wind 6 to 8 mph becoming south in the afternoon.
Friday Night
Areas of fog before 7pm. Otherwise, mostly cloudy, with a low around 27. South wind 7 to 10 mph.
Saturday
Mostly sunny, with a high near 37. South southwest wind around 9 mph becoming northwest in the afternoon.
Saturday Night
A slight chance of snow after midnight. Mostly cloudy, with a low around 6. Blustery, with a north northwest wind 10 to 15 mph increasing to 16 to 21 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 20%.
Sunday
A slight chance of snow before noon. Mostly cloudy, with a high near 11. Blustery, with a northwest wind 21 to 24 mph, with gusts as high as 41 mph. Chance of precipitation is 20%.
Sunday Night
Mostly cloudy, with a low around -2. Blustery, with a northwest wind 14 to 22 mph, with gusts as high as 37 mph.
Monday
Mostly sunny, with a high near 13. West northwest wind 9 to 13 mph, with gusts as high as 23 mph.
Monday Night
Mostly cloudy, with a low around 5.
Tuesday
Partly sunny, with a high near 30.
Tuesday Night
A slight chance of snow. Mostly cloudy, with a low around 9. Chance of precipitation is 20%.
Wednesday
Mostly cloudy, with a high near 19.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lake City SD
 45.72°N 97.41°W (Elev. 1890 ft)
Last Update:
11:46 am CST Dec 25, 2025
Forecast Valid:
12pm CST Dec 25, 2025-6pm CST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation