Tracking Major Hurricane Erin; Hot in the Mid-Mississippi Valley

Major Hurricane Erin is tracking just north of the lower Bahamas today. Dangerous surf and rip current threats increase this week for most of the Atlantic coastline. Erin's outerbands may impact the Outer Banks later this week. Hot to extremely hot temperatures are forecast today and Tuesday from a part of the southern Plains into the central to lower Mississippi River Valley. Read More >

Hazardous Weather Conditions

Current conditions at

Des Moines International Airport (KDSM)

Lat: 41.53°NLon: 93.65°WElev: 942ft.

Light Rain

73°F

23°C

Humidity 87%
Wind Speed N 12 G 20 mph
Barometer 30.01 in (1015.4 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 18 Aug 7:54 am CDT
Extended Forecast for

2 Miles S Martensdale IA

  • Today

    Today: Isolated showers and thunderstorms before 9am, then a slight chance of showers and thunderstorms after 4pm.  Mostly sunny, with a high near 93. Heat index values as high as 105. Southwest wind 6 to 9 mph, with gusts as high as 20 mph.  Chance of precipitation is 20%.

    High: 93 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 4am.  Partly cloudy, with a low around 71. West southwest wind around 6 mph becoming light and variable  after midnight.  New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms between 7am and 1pm.  Mostly sunny, with a high near 90. Light and variable wind becoming north northeast 5 to 7 mph in the morning.  Chance of precipitation is 20%.

    High: 90 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 67. North northeast wind 5 to 7 mph.

    Low: 67 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 85. Northeast wind 5 to 8 mph.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

Detailed Forecast

Today
Isolated showers and thunderstorms before 9am, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 93. Heat index values as high as 105. Southwest wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 4am. Partly cloudy, with a low around 71. West southwest wind around 6 mph becoming light and variable after midnight. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
A slight chance of showers and thunderstorms between 7am and 1pm. Mostly sunny, with a high near 90. Light and variable wind becoming north northeast 5 to 7 mph in the morning. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 67. North northeast wind 5 to 7 mph.
Wednesday
Sunny, with a high near 85. Northeast wind 5 to 8 mph.
Wednesday Night
Mostly clear, with a low around 61.
Thursday
Sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 61.
Friday
Mostly sunny, with a high near 86.
Friday Night
Partly cloudy, with a low around 62.
Saturday
Sunny, with a high near 81.
Saturday Night
Mostly clear, with a low around 55.
Sunday
Sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Martensdale IA
 41.35°N 93.75°W
6:05 am CDT Aug 18, 2025
8am CDT Aug 18, 2025-6pm CDT Aug 24, 2025
 
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Additional Resources

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