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

Newton Municipal Airport - Earl Johnson Field (KTNU)

Lat: 41.67°NLon: 93.02°WElev: 945ft.

Fair

70°F

21°C

Humidity 83%
Wind Speed S 7 mph
Barometer 30.05 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 4 Oct 12:35 am CDT
Extended Forecast for

Newton Municipal IA

  • Overnight

    Overnight: Clear, with a low around 66. South wind around 7 mph.

    Low: 66 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 89. Windy, with a south wind 9 to 14 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 89 °F

    Sunny and
    Windy

  • Saturday Night

    Saturday Night: Clear, with a low around 63. South wind 11 to 13 mph, with gusts as high as 23 mph.

    Low: 63 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 86. Windy, with a south wind 14 to 21 mph, with gusts as high as 32 mph.

    High: 86 °F

    Sunny and
    Windy

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 57. South wind 7 to 10 mph becoming west after midnight. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 57 °F

    Showers
    Likely

  • Monday

    Monday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 67. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 67 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 66. South wind around 7 mph.
Saturday
Sunny, with a high near 89. Windy, with a south wind 9 to 14 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 31 mph.
Saturday Night
Clear, with a low around 63. South wind 11 to 13 mph, with gusts as high as 23 mph.
Sunday
Sunny, with a high near 86. Windy, with a south wind 14 to 21 mph, with gusts as high as 32 mph.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 57. South wind 7 to 10 mph becoming west after midnight. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 67. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 52.
Tuesday
Mostly sunny, with a high near 69.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Sunny, with a high near 70.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Sunny, with a high near 71.
Thursday Night
Partly cloudy, with a low around 53.
Friday
Mostly sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Newton Municipal IA
 41.67°N 93.01°W
Last Update:
10:50 pm CDT Oct 3, 2025
Forecast Valid:
12am CDT Oct 4, 2025-6pm CDT Oct 10, 2025
 
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Additional Resources

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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