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.

Fair

77°F

25°C

Humidity 88%
Wind Speed NE 9 mph
Barometer 29.90 in (1011.3 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 1 Sep 9:53 pm CDT
Extended Forecast for

Arnolds Park IA

Severe T-storm Watch until September 2, 05:00am
Click here for hazard details and duration
Severe T-storm Watch
  •  
    Severe T-storm Watch until September 2, 05:00am

    NOW until 5:00am Wed

    Severe T-storm Watch

  • Tonight

    Low: 65 °F

    Heavy Rain
    then Severe
    Thunderstorms

  • Wednesday

    Wednesday: A 10 percent chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 86. East southeast wind around 5 mph becoming west in the afternoon.

    High: 86 °F

    Slight Chance
    T-storms then
    Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms between 2am and 4am, then showers likely and possibly a thunderstorm after 4am. Increasing clouds, with a low around 68. Northeast wind 5 to 10 mph becoming southeast after midnight. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Partly Cloudy
    then Showers
    Likely

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, then gradually becoming sunny, with a high near 88. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 88 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 71. South wind around 10 mph.

    Low: 71 °F

    Mostly Clear
    then Chance
    T-storms

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly before 7am. Mostly sunny, with a high near 88. South wind 10 to 15 mph.

    High: 88 °F

    Chance
    T-storms

  • Friday Night

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

    Low: 69 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Tonight
Showers and thunderstorms, mainly before 4am. Some of the storms could be severe and produce heavy rainfall. Low around 65. Northeast wind around 10 mph becoming west northwest after midnight. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
A 10 percent chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 86. East southeast wind around 5 mph becoming west in the afternoon.
Wednesday Night
A chance of showers and thunderstorms between 2am and 4am, then showers likely and possibly a thunderstorm after 4am. Increasing clouds, with a low around 68. Northeast wind 5 to 10 mph becoming southeast after midnight. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, then gradually becoming sunny, with a high near 88. South wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 71. South wind around 10 mph.
Friday
A 30 percent chance of showers and thunderstorms, mainly before 7am. Mostly sunny, with a high near 88. South wind 10 to 15 mph.
Friday Night
Mostly clear, with a low around 69.
Saturday
A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 89.
Saturday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68.
Sunday
A 30 percent chance of showers before 1pm. Partly sunny, with a high near 85.
Sunday Night
Partly cloudy, with a low around 64.
Labor Day
A 30 percent chance of showers. Partly sunny, with a high near 81.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 63.
Tuesday
A 40 percent chance of showers. Partly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Arnolds Park IA
 43.37°N 95.12°W (Elev. 1407 ft)
Last Update:
9:53 pm CDT Sep 1, 2026
Forecast Valid:
10pm CDT Sep 1, 2026-6pm CDT Sep 8, 2026
 
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