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

Tracking Two Storms Impacting the Northern U.S. Through Thanksgiving and into This Weekend

Heavy lake effect snow, gusty winds, and localized blizzard conditions will persist through Thanksgiving near and downwind of the Great Lakes. Rain and mountain snow are forecast for the Pacific Northwest. Confidence is increasing for another winter storm to develop over the northern and central Rockies Friday and track across the central Plains through the Midwest and Great Lakes this weekend. Read More >

Current conditions at

Shenandoah Municipal (KSDA)

Lat: 40.75°NLon: 95.42°WElev: 971ft.

Fair

39°F

4°C

Humidity 39%
Wind Speed N 7 mph
Barometer 30.40 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 27 Nov 2:15 pm CST
Extended Forecast for

Riverton IA

  • Thanksgiving Day

    Thanksgiving Day: Mostly sunny, with a high near 39. North northwest wind 3 to 6 mph.

    High: 39 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 20. Calm wind.

    Low: 20 °F

    Partly Cloudy

  • Friday

    Friday: A chance of rain, snow, freezing rain, and sleet before 4pm, then a chance of snow between 4pm and 5pm, then a chance of freezing rain and sleet after 5pm. Cloudy, with a high near 33. Light east wind becoming east southeast 8 to 13 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 30%.

    High: 33 °F

    Slight Chance
    Snow then
    Chance Wintry
    Mix

  • Friday Night

    Friday Night: Freezing rain, possibly mixed with sleet before 3am, then rain. Low around 27. East southeast wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New sleet accumulation of less than a half inch possible.

    Low: 27 °F

    Wintry Mix
    Likely then
    Wintry Mix

  • Saturday

    Saturday: Rain and snow, becoming all snow after 3pm. Patchy blowing snow after 4pm. High near 34. East wind 8 to 17 mph becoming north northwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 34 °F

    Rain/Snow
    then
    Rain/Snow
    Likely and
    Patchy
    Blowing Snow

  • Saturday Night

    Saturday Night: Patchy blowing snow before 7pm. Mostly cloudy, with a low around 13. North northwest wind 13 to 17 mph, with gusts as high as 29 mph.

    Low: 13 °F

    Patchy
    Blowing Snow
    then Mostly
    Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 20. North northwest wind 5 to 11 mph, with gusts as high as 21 mph.

    High: 20 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 9. Light and variable wind.

    Low: 9 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of snow, mainly before noon. Mostly cloudy, with a high near 22. Calm wind becoming south southeast around 6 mph in the morning.

    High: 22 °F

    Chance Snow

Detailed Forecast

Thanksgiving Day
Mostly sunny, with a high near 39. North northwest wind 3 to 6 mph.
Tonight
Partly cloudy, with a low around 20. Calm wind.
Friday
A chance of rain, snow, freezing rain, and sleet before 4pm, then a chance of snow between 4pm and 5pm, then a chance of freezing rain and sleet after 5pm. Cloudy, with a high near 33. Light east wind becoming east southeast 8 to 13 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 30%.
Friday Night
Freezing rain, possibly mixed with sleet before 3am, then rain. Low around 27. East southeast wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New sleet accumulation of less than a half inch possible.
Saturday
Rain and snow, becoming all snow after 3pm. Patchy blowing snow after 4pm. High near 34. East wind 8 to 17 mph becoming north northwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
Patchy blowing snow before 7pm. Mostly cloudy, with a low around 13. North northwest wind 13 to 17 mph, with gusts as high as 29 mph.
Sunday
Partly sunny, with a high near 20. North northwest wind 5 to 11 mph, with gusts as high as 21 mph.
Sunday Night
Mostly cloudy, with a low around 9. Light and variable wind.
Monday
A chance of snow, mainly before noon. Mostly cloudy, with a high near 22. Calm wind becoming south southeast around 6 mph in the morning.
Monday Night
Mostly cloudy, with a low around 10. Light and variable wind.
Tuesday
Mostly sunny, with a high near 29. South southwest wind 3 to 7 mph.
Tuesday Night
Mostly cloudy, with a low around 18. South wind 3 to 6 mph.
Wednesday
Mostly cloudy, with a high near 32. South wind 6 to 9 mph becoming north in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Riverton IA
 40.69°N 95.58°W (Elev. 922 ft)
Last Update:
2:11 pm CST Nov 27, 2025
Forecast Valid:
2pm CST Nov 27, 2025-6pm CST Dec 3, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation