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

77°F

25°C

Humidity 77%
Wind Speed W 3 mph
Barometer 29.81 in (1008.9 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 17 Jun 4:54 pm CDT
Extended Forecast for

Saint Marys IA

  • This Afternoon

    This Afternoon: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 77. West southwest wind around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 10pm. Cloudy, with a low around 66. Calm wind becoming east 5 to 7 mph after midnight. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 9am, then a chance of showers and thunderstorms after 9am. Cloudy, then gradually becoming mostly sunny, with a high near 78. North northwest wind 7 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 78 °F

    Showers
    Likely then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 60. North northwest wind 6 to 10 mph becoming west after midnight. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Chance
    T-storms then
    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 87. West wind 6 to 8 mph.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 92. Windy.

    High: 92 °F

    Sunny and
    Windy

  • Friday Night

    Friday Night: Mostly clear, with a low around 77. Windy.

    Low: 77 °F

    Mostly Clear
    and Windy

  • Saturday

    Saturday: Sunny, with a high near 96. Windy.

    High: 96 °F

    Sunny and
    Windy

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 77. West southwest wind around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 10pm. Cloudy, with a low around 66. Calm wind becoming east 5 to 7 mph after midnight. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers likely and possibly a thunderstorm before 9am, then a chance of showers and thunderstorms after 9am. Cloudy, then gradually becoming mostly sunny, with a high near 78. North northwest wind 7 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 60. North northwest wind 6 to 10 mph becoming west after midnight. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Juneteenth
Sunny, with a high near 87. West wind 6 to 8 mph.
Thursday Night
Mostly clear, with a low around 69.
Friday
Sunny, with a high near 92. Windy.
Friday Night
Mostly clear, with a low around 77. Windy.
Saturday
Sunny, with a high near 96. Windy.
Saturday Night
Clear, with a low around 77. Breezy.
Sunday
Sunny, with a high near 95. Windy.
Sunday Night
Mostly clear, with a low around 75. Breezy.
Monday
Sunny, with a high near 94. Breezy.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Marys IA
 41.32°N 93.72°W
Last Update:
4:10 pm CDT Jun 17, 2025
Forecast Valid:
5pm CDT Jun 17, 2025-6pm CDT Jun 24, 2025
 
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