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

58°F

14°C

Humidity 53%
Wind Speed SE 12 mph
Barometer 30.02 in (1016.8 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 4 Nov 10:54 am CST
Extended Forecast for

Saint Marys IA

  • Today

    Today: Sunny, with a high near 69. South southwest wind 9 to 11 mph, with gusts as high as 21 mph.

    High: 69 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 45. South southwest wind 8 to 15 mph becoming northwest after midnight. Winds could gust as high as 24 mph.

    Low: 45 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 57. Breezy, with a north wind 12 to 17 mph decreasing to 6 to 11 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 57 °F

    Sunny and
    Breezy then
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 37. Calm wind becoming south southeast 5 to 9 mph after midnight.

    Low: 37 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 62. Breezy, with a south wind 10 to 18 mph, with gusts as high as 25 mph.

    High: 62 °F

    Partly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Chance Rain
    then Partly
    Cloudy

  • Friday

    Friday: Sunny, with a high near 62. Breezy.

    High: 62 °F

    Sunny and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 69. South southwest wind 9 to 11 mph, with gusts as high as 21 mph.
Tonight
Clear, with a low around 45. South southwest wind 8 to 15 mph becoming northwest after midnight. Winds could gust as high as 24 mph.
Wednesday
Sunny, with a high near 57. Breezy, with a north wind 12 to 17 mph decreasing to 6 to 11 mph in the afternoon. Winds could gust as high as 33 mph.
Wednesday Night
Mostly clear, with a low around 37. Calm wind becoming south southeast 5 to 9 mph after midnight.
Thursday
Partly sunny, with a high near 62. Breezy, with a south wind 10 to 18 mph, with gusts as high as 25 mph.
Thursday Night
A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 46.
Friday
Sunny, with a high near 62. Breezy.
Friday Night
Partly cloudy, with a low around 36.
Saturday
Partly sunny, with a high near 56.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
Sunny, with a high near 42.
Sunday Night
Mostly clear, with a low around 23.
Monday
Mostly sunny, with a high near 43.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Marys IA
 41.3°N 93.75°W
Last Update:
10:37 am CST Nov 4, 2025
Forecast Valid:
11am CST Nov 4, 2025-6pm CST Nov 10, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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