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

Ainsworth Regional Airport (KANW)

Lat: 42.57°NLon: 100°WElev: 2579ft.

Fair

40°F

4°C

Humidity 78%
Wind Speed W 6 mph
Barometer 29.81 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 26 Dec 1:55 am CST
Extended Forecast for

Johnstown NE

  • Overnight

    Overnight: Mostly clear, with a low around 37. West wind around 5 mph.

    Low: 37 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 65. West wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 65 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 36. South southwest wind 5 to 10 mph.

    Low: 36 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 61. West southwest wind 5 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 61 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 12. Blustery, with a north northwest wind 5 to 10 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 30 mph.

    Low: 12 °F

    Mostly Cloudy
    then Chance
    Snow and
    Blustery

  • Sunday

    Sunday: Partly sunny, with a high near 22. Blustery.

    High: 22 °F

    Partly Sunny
    and Blustery

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 6. Blustery.

    Low: 6 °F

    Mostly Clear
    and Blustery
    then Mostly
    Clear

  • Monday

    Monday: Sunny, with a high near 32.

    High: 32 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 18.

    Low: 18 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 37. West wind around 5 mph.
Friday
Sunny, with a high near 65. West wind 5 to 15 mph, with gusts as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 36. South southwest wind 5 to 10 mph.
Saturday
Partly sunny, with a high near 61. West southwest wind 5 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 12. Blustery, with a north northwest wind 5 to 10 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 30 mph.
Sunday
Partly sunny, with a high near 22. Blustery.
Sunday Night
Mostly clear, with a low around 6. Blustery.
Monday
Sunny, with a high near 32.
Monday Night
Partly cloudy, with a low around 18.
Tuesday
Partly sunny, with a high near 47.
Tuesday Night
Mostly cloudy, with a low around 21.
Wednesday
Mostly sunny, with a high near 41.
Wednesday Night
Partly cloudy, with a low around 16.
New Year's Day
Mostly sunny, with a high near 35.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Johnstown NE
 42.59°N 100.07°W
Last Update:
1:17 am CST Dec 26, 2025
Forecast Valid:
2am CST Dec 26, 2025-6pm CST Jan 1, 2026
 
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