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

Lake Effect Snow through Saturday: A Series of Storms Impact the West

Lake effect snow showers will continue through Saturday downwind of Lakes Erie, Ontario and the eastern portion of Lake Superior. A series of storm systems will continue to impact California and the Pacific Northwest through the weekend and into next week, bringing widespread rainfall, mountain snowfall, and gusty winds. Coastal flooding is expected in northern California. Read More >

Hazardous Weather Conditions

Current conditions at

Atlantic (KAIO)

Lat: 41.4°NLon: 95.05°WElev: 1181ft.

Overcast

27°F

-3°C

Humidity 93%
Wind Speed NE 10 mph
Barometer 29.90 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 2 Jan 12:55 am CST
Extended Forecast for

Walnut IA

  • Overnight

    Overnight: Cloudy, with a steady temperature around 24. Calm wind becoming east northeast around 5 mph.

    Low: 24 °F

    Cloudy

  • Friday

    Friday: A 20 percent chance of snow after 5pm. Cloudy, with a high near 29. East wind around 7 mph.

    High: 29 °F

    Cloudy then
    Slight Chance
    Snow

  • Friday Night

    Friday Night: A chance of snow and freezing rain before midnight, then a slight chance of snow and sleet between midnight and 1am. Cloudy, with a low around 21. East wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 21 °F

    Chance Wintry
    Mix

  • Saturday

    Saturday: Sunny, with a high near 39. Calm wind becoming west southwest 5 to 7 mph.

    High: 39 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 24. Calm wind becoming east southeast around 5 mph after midnight.

    Low: 24 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 45. Breezy, with a south southeast wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 24 mph.

    High: 45 °F

    Mostly Cloudy
    then Partly
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 31. South wind 5 to 14 mph becoming west southwest after midnight. Winds could gust as high as 22 mph.

    Low: 31 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 51. Light and variable wind becoming south around 6 mph in the morning.

    High: 51 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 33. South southeast wind around 6 mph becoming west after midnight.

    Low: 33 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Cloudy, with a steady temperature around 24. Calm wind becoming east northeast around 5 mph.
Friday
A 20 percent chance of snow after 5pm. Cloudy, with a high near 29. East wind around 7 mph.
Friday Night
A chance of snow and freezing rain before midnight, then a slight chance of snow and sleet between midnight and 1am. Cloudy, with a low around 21. East wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Sunny, with a high near 39. Calm wind becoming west southwest 5 to 7 mph.
Saturday Night
Partly cloudy, with a low around 24. Calm wind becoming east southeast around 5 mph after midnight.
Sunday
Mostly cloudy, with a high near 45. Breezy, with a south southeast wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 24 mph.
Sunday Night
Partly cloudy, with a low around 31. South wind 5 to 14 mph becoming west southwest after midnight. Winds could gust as high as 22 mph.
Monday
Partly sunny, with a high near 51. Light and variable wind becoming south around 6 mph in the morning.
Monday Night
Mostly cloudy, with a low around 33. South southeast wind around 6 mph becoming west after midnight.
Tuesday
Mostly sunny, with a high near 51. Northwest wind 6 to 11 mph, with gusts as high as 17 mph.
Tuesday Night
Mostly clear, with a low around 29. West northwest wind around 6 mph becoming light and variable.
Wednesday
Sunny, with a high near 51. South southwest wind 5 to 10 mph, with gusts as high as 16 mph.
Wednesday Night
Partly cloudy, with a low around 32. South wind around 7 mph.
Thursday
A chance of rain. Partly sunny, with a high near 50. South southeast wind 7 to 13 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Walnut IA
 41.48°N 95.2°W (Elev. 1299 ft)
Last Update:
12:36 am CST Jan 2, 2026
Forecast Valid:
1am CST Jan 2, 2026-6pm CST Jan 8, 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