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

Hazardous Weather Conditions

Current conditions at

Spencer Municipal Airport (KSPW)

Lat: 43.17°NLon: 95.21°WElev: 1332ft.

Thunderstorm in Vicinity Light Rain

71°F

22°C

Humidity 96%
Wind Speed E 14 mph
Barometer 29.92 in (1012.0 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 18 Aug 1:53 am CDT
Extended Forecast for

3 Miles N Marathon IA

  • Overnight

    Overnight: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. South southeast wind around 10 mph.

    Low: 70 °F

    Chance
    T-storms

  • Monday

    Monday: Scattered showers and thunderstorms, mainly before 8am. Partly sunny, with a high near 88. South southwest wind around 10 mph becoming west in the afternoon. Chance of precipitation is 30%.

    High: 88 °F

    Scattered
    T-storms then
    Mostly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 66. North northeast wind around 5 mph.

    Low: 66 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 83. North northeast wind 5 to 10 mph.

    High: 83 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 61. North northeast wind 5 to 10 mph.

    Low: 61 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 82. Northeast wind around 5 mph.

    High: 82 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

Detailed Forecast

Overnight
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. South southeast wind around 10 mph.
Monday
Scattered showers and thunderstorms, mainly before 8am. Partly sunny, with a high near 88. South southwest wind around 10 mph becoming west in the afternoon. Chance of precipitation is 30%.
Monday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 66. North northeast wind around 5 mph.
Tuesday
Mostly sunny, with a high near 83. North northeast wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 61. North northeast wind 5 to 10 mph.
Wednesday
Sunny, with a high near 82. Northeast wind around 5 mph.
Wednesday Night
Mostly clear, with a low around 59.
Thursday
Sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 60.
Friday
Mostly sunny, with a high near 82.
Friday Night
Partly cloudy, with a low around 56.
Saturday
Sunny, with a high near 75.
Saturday Night
Mostly clear, with a low around 50.
Sunday
Sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Marathon IA
 42.92°N 94.97°W (Elev. 1401 ft)
Last Update:
1:41 am CDT Aug 18, 2025
Forecast Valid:
2am CDT Aug 18, 2025-6pm CDT Aug 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