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

Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Current conditions at

St. Joseph, Rosecrans Memorial Airport (KSTJ)

Lat: 39.77°NLon: 94.91°WElev: 823ft.

Fog/Mist

31°F

-1°C

Humidity 92%
Wind Speed N 6 mph
Barometer 30.04 in (1017.7 mb)
Dewpoint 29°F (-2°C)
Visibility 6.00 mi
Wind Chill25°F (-4°C)
Last update 1 Jan 5:53 am CST
Extended Forecast for

Cosby MO

  • New Year's Day

    New Year's Day: Partly sunny, with a high near 38. North northeast wind around 6 mph becoming light and variable in the afternoon.

    High: 38 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 26. Calm wind becoming east around 5 mph after midnight.

    Low: 26 °F

    Mostly Cloudy

  • Friday

    Friday: Cloudy, with a high near 37. East wind 5 to 9 mph.

    High: 37 °F

    Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 24. East northeast wind 5 to 7 mph becoming calm after midnight.

    Low: 24 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 42. Calm wind becoming west around 6 mph.

    High: 42 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 47.

    High: 47 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

Detailed Forecast

New Year's Day
Partly sunny, with a high near 38. North northeast wind around 6 mph becoming light and variable in the afternoon.
Tonight
Mostly cloudy, with a low around 26. Calm wind becoming east around 5 mph after midnight.
Friday
Cloudy, with a high near 37. East wind 5 to 9 mph.
Friday Night
Mostly cloudy, with a low around 24. East northeast wind 5 to 7 mph becoming calm after midnight.
Saturday
Mostly sunny, with a high near 42. Calm wind becoming west around 6 mph.
Saturday Night
Mostly clear, with a low around 27.
Sunday
Partly sunny, with a high near 47.
Sunday Night
Mostly clear, with a low around 35.
Monday
Mostly sunny, with a high near 58.
Monday Night
Partly cloudy, with a low around 36.
Tuesday
Mostly sunny, with a high near 58.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
Mostly sunny, with a high near 53.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Cosby MO
 39.86°N 94.68°W (Elev. 886 ft)
Last Update:
6:02 am CST Jan 1, 2026
Forecast Valid:
6am CST Jan 1, 2026-6pm CST Jan 7, 2026
 
Forecast Discussion
 
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Additional Resources

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