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.

A Few Clouds

60°F

16°C

Humidity 72%
Wind Speed E 8 mph
Barometer 30.37 in (1028.3 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 23 Sep 10:54 am CDT
Extended Forecast for

Saint Marys IA

  • Today

    Today: Mostly sunny, with a high near 68. East wind 5 to 7 mph.

    High: 68 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 55. East southeast wind 3 to 6 mph.

    Low: 55 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 67. East southeast wind 3 to 6 mph.

    High: 67 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 40 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 59. East southeast wind 3 to 6 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 59 °F

    Chance
    Showers

  • Friday

    Friday: Showers likely, mainly before 1pm. Cloudy, with a high near 66. Light east southeast wind becoming southeast 5 to 9 mph in the morning. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    High: 66 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 60. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 60 °F

    Chance
    Showers then
    Showers
    Likely

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers. Mostly cloudy, with a high near 69. Chance of precipitation is 70%.

    High: 69 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A 30 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 60.

    Low: 60 °F

    Chance
    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 73.

    High: 73 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 68. East wind 5 to 7 mph.
Tonight
Partly cloudy, with a low around 55. East southeast wind 3 to 6 mph.
Thursday
Mostly cloudy, with a high near 67. East southeast wind 3 to 6 mph.
Thursday Night
A 40 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 59. East southeast wind 3 to 6 mph. New precipitation amounts of less than a tenth of an inch possible.
Friday
Showers likely, mainly before 1pm. Cloudy, with a high near 66. Light east southeast wind becoming southeast 5 to 9 mph in the morning. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 60. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers. Mostly cloudy, with a high near 69. Chance of precipitation is 70%.
Saturday Night
A 30 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 60.
Sunday
Partly sunny, with a high near 73.
Sunday Night
Mostly cloudy, with a low around 61.
Monday
Mostly sunny, with a high near 74.
Monday Night
A 50 percent chance of showers. Partly cloudy, with a low around 64.
Tuesday
Showers likely. Mostly cloudy, with a high near 71. Chance of precipitation is 70%.
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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:
6:02 am CDT Sep 23, 2026
Forecast Valid:
11am CDT Sep 23, 2026-6pm CDT Sep 29, 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