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

Des Moines International Airport (KDSM)

Lat: 41.53°NLon: 93.65°WElev: 942ft.

Fair

12°F

-11°C

Humidity 64%
Wind Speed N 9 G 21 mph
Barometer 30.62 in (1038.9 mb)
Dewpoint 2°F (-17°C)
Visibility 10.00 mi
Wind Chill0°F (-18°C)
Last update 22 Feb 8:54 pm CST
Extended Forecast for

Saint Marys IA

  • Tonight

    Tonight: Partly cloudy, with a low around 2. Wind chill values as low as -10. North northwest wind 8 to 11 mph, with gusts as high as 20 mph.

    Low: 2 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 20. Wind chill values as low as -10. North northwest wind 5 to 7 mph becoming calm in the morning.

    High: 20 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a temperature falling to near 14 by 8pm, then rising to around 24 during the remainder of the night. Wind chill values as low as 5. Light southeast wind becoming south 9 to 14 mph in the evening. Winds could gust as high as 20 mph.

    Low: 14 °F⇑

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 45. South wind 10 to 14 mph becoming west in the afternoon. Winds could gust as high as 20 mph.

    High: 45 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 23. West northwest wind 6 to 10 mph.

    Low: 23 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of rain and snow after noon. Mostly sunny, with a high near 39. Chance of precipitation is 30%.

    High: 39 °F

    Mostly Sunny
    then Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain and snow likely, mainly before midnight. Mostly cloudy, with a low around 21. Chance of precipitation is 60%.

    Low: 21 °F

    Rain/Snow
    Likely then
    Chance
    Rain/Snow

  • Thursday

    Thursday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 2. Wind chill values as low as -10. North northwest wind 8 to 11 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 20. Wind chill values as low as -10. North northwest wind 5 to 7 mph becoming calm in the morning.
Monday Night
Partly cloudy, with a temperature falling to near 14 by 8pm, then rising to around 24 during the remainder of the night. Wind chill values as low as 5. Light southeast wind becoming south 9 to 14 mph in the evening. Winds could gust as high as 20 mph.
Tuesday
Mostly cloudy, with a high near 45. South wind 10 to 14 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 23. West northwest wind 6 to 10 mph.
Wednesday
A chance of rain and snow after noon. Mostly sunny, with a high near 39. Chance of precipitation is 30%.
Wednesday Night
Rain and snow likely, mainly before midnight. Mostly cloudy, with a low around 21. Chance of precipitation is 60%.
Thursday
Mostly sunny, with a high near 40.
Thursday Night
Mostly clear, with a low around 29.
Friday
Sunny, with a high near 57.
Friday Night
Mostly clear, with a low around 32.
Saturday
Mostly sunny, with a high near 48. Breezy.
Saturday Night
Partly cloudy, with a low around 21.
Sunday
Partly sunny, with a high near 37.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Marys IA
 41.3°N 93.75°W
Last Update:
7:37 pm CST Feb 22, 2026
Forecast Valid:
9pm CST Feb 22, 2026-6pm CST Mar 1, 2026
 
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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