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

Clinton Municipal Airport (KCWI)

Lat: 41.83°NLon: 90.33°WElev: 696ft.

Fair

67°F

19°C

Humidity 100%
Wind Speed W 5 mph
Barometer 30.02 in (1016.7 mb)
Dewpoint 67°F (19°C)
Visibility 9.00 mi
Last update 9 Sep 11:56 pm CDT
Extended Forecast for

Princeton IA

  • Overnight

    Overnight: Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 63. West wind around 5 mph.

    Low: 63 °F

    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 80. North wind around 5 mph.

    High: 80 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 57. Northeast wind around 5 mph becoming calm.

    Low: 57 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 81. Light southeast wind becoming south 5 to 10 mph in the morning.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of showers before 1pm. Mostly sunny, with a high near 83.

    High: 83 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 81.

    High: 81 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 66.

    Low: 66 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 63. West wind around 5 mph.
Thursday
Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 80. North wind around 5 mph.
Thursday Night
Clear, with a low around 57. Northeast wind around 5 mph becoming calm.
Friday
Sunny, with a high near 81. Light southeast wind becoming south 5 to 10 mph in the morning.
Friday Night
Mostly clear, with a low around 64.
Saturday
A 30 percent chance of showers before 1pm. Mostly sunny, with a high near 83.
Saturday Night
Partly cloudy, with a low around 60.
Sunday
Partly sunny, with a high near 81.
Sunday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 66.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 89. Chance of precipitation is 50%.
Monday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 65. Chance of precipitation is 70%.
Tuesday
A 30 percent chance of showers. Mostly cloudy, with a high near 78.
Tuesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 60.
Wednesday
A 40 percent chance of showers. Partly sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Princeton IA
 41.66°N 90.35°W (Elev. 633 ft)
Last Update:
6:56 pm CDT Sep 9, 2026
Forecast Valid:
12am CDT Sep 10, 2026-6pm CDT Sep 16, 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