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

Hazardous Weather Conditions

Current conditions at

Des Moines International Airport (KDSM)

Lat: 41.53°NLon: 93.65°WElev: 942ft.

Overcast

38°F

3°C

Humidity 89%
Wind Speed W 14 mph
Barometer 29.74 in (1007.7 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 6 Jan 1:54 pm CST
Extended Forecast for

Saint Marys IA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 45. Northwest wind 7 to 13 mph.

    High: 45 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy fog between 2am and 4am. Otherwise, partly cloudy, with a low around 30. Northwest wind around 6 mph becoming light and variable.

    Low: 30 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 7am. Otherwise, sunny, with a high near 59. South southwest wind 6 to 14 mph, with gusts as high as 20 mph.

    High: 59 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 40. South wind 7 to 10 mph.

    Low: 40 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Rain. High near 48. South wind 6 to 10 mph becoming north in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 48 °F

    Rain

  • Thursday Night

    Thursday Night: A 50 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 33. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 33 °F

    Chance Rain
    then Slight
    Chance Rain

  • Friday

    Friday: A 20 percent chance of rain. Partly sunny, with a high near 42.

    High: 42 °F

    Slight Chance
    Rain

  • Friday Night

    Friday Night: A chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 50%.

    Low: 28 °F

    Chance
    Rain/Snow

  • Saturday

    Saturday: A 30 percent chance of snow. Partly sunny, with a high near 34. Breezy.

    High: 34 °F

    Chance Snow
    and Breezy

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 45. Northwest wind 7 to 13 mph.
Tonight
Patchy fog between 2am and 4am. Otherwise, partly cloudy, with a low around 30. Northwest wind around 6 mph becoming light and variable.
Wednesday
Patchy fog before 7am. Otherwise, sunny, with a high near 59. South southwest wind 6 to 14 mph, with gusts as high as 20 mph.
Wednesday Night
Increasing clouds, with a low around 40. South wind 7 to 10 mph.
Thursday
Rain. High near 48. South wind 6 to 10 mph becoming north in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday Night
A 50 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 33. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
A 20 percent chance of rain. Partly sunny, with a high near 42.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 50%.
Saturday
A 30 percent chance of snow. Partly sunny, with a high near 34. Breezy.
Saturday Night
Partly cloudy, with a low around 18.
Sunday
Sunny, with a high near 35.
Sunday Night
Partly cloudy, with a low around 26.
Monday
Mostly sunny, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Marys IA
 41.32°N 93.72°W
Last Update:
2:22 pm CST Jan 6, 2026
Forecast Valid:
2pm CST Jan 6, 2026-6pm CST Jan 12, 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