Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Hazardous Weather Conditions

Current conditions at

Ottumwa Regional Airport (KOTM)

Lat: 41.1°NLon: 92.44°WElev: 830ft.

Fair

23°F

-5°C

Humidity 72%
Wind Speed N 9 mph
Barometer 29.95 in (1015.4 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Wind Chill13°F (-11°C)
Last update 21 Jan 12:53 am CST
Extended Forecast for

3 Miles S Gibson IA

  • Overnight

    Overnight: A 20 percent chance of snow before 2am.  Cloudy early, then becoming partly cloudy, with a low around 16. Northwest wind 5 to 10 mph.

    Low: 16 °F

    Slight Chance
    Snow

  • Wednesday

    Wednesday: A slight chance of snow between 3pm and 4pm.  Sunny, then becoming partly sunny during the afternoon, with a high near 35. Breezy, with a southwest wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.  Chance of precipitation is 20%.

    High: 35 °F

    Mostly Sunny
    then Slight
    Chance Snow
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 11. Wind chill values as low as zero. Breezy, with a northwest wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 35 mph.

    Low: 11 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 25. Wind chill values as low as zero. West wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 25 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around -10.

    Low: -10 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny and cold, with a high near -2.

    High: -2 °F

    Cold

  • Friday Night

    Friday Night: Mostly cloudy, with a low around -9.

    Low: -9 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy and cold, with a high near 7.

    High: 7 °F

    Cold

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around -3.

    Low: -3 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of snow before 2am. Cloudy early, then becoming partly cloudy, with a low around 16. Northwest wind 5 to 10 mph.
Wednesday
A slight chance of snow between 3pm and 4pm. Sunny, then becoming partly sunny during the afternoon, with a high near 35. Breezy, with a southwest wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 11. Wind chill values as low as zero. Breezy, with a northwest wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 35 mph.
Thursday
Increasing clouds, with a high near 25. Wind chill values as low as zero. West wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Mostly cloudy, with a low around -10.
Friday
Mostly sunny and cold, with a high near -2.
Friday Night
Mostly cloudy, with a low around -9.
Saturday
Mostly cloudy and cold, with a high near 7.
Saturday Night
Mostly cloudy, with a low around -3.
Sunday
Mostly sunny, with a high near 14.
Sunday Night
Partly cloudy, with a low around -3.
Monday
Sunny, with a high near 20.
Monday Night
Partly cloudy, with a low around 8.
Tuesday
Mostly sunny, with a high near 30.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Gibson IA
 41.44°N 92.41°W (Elev. 869 ft)
9:41 pm CST Jan 20, 2026
1am CST Jan 21, 2026-6pm CST Jan 27, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database