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

86°F

30°C

Humidity 46%
Wind Speed SW 9 mph
Barometer 30.15 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 3 Oct 12:55 pm CDT
Extended Forecast for

Newton Municipal IA

  • This Afternoon

    This Afternoon: Sunny, with a high near 90. South wind around 9 mph.

    High: 90 °F

    Sunny

  • Tonight

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

    Low: 66 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 88. Breezy, with a south wind 8 to 13 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 88 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Clear, with a low around 63. South wind 11 to 14 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: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 58 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday

    Monday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.

    High: 70 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.

    Low: 54 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 90. South wind around 9 mph.
Tonight
Clear, with a low around 66. South wind around 7 mph.
Saturday
Sunny, with a high near 88. Breezy, with a south wind 8 to 13 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Saturday Night
Clear, with a low around 63. South wind 11 to 14 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
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.
Tuesday
Mostly sunny, with a high near 69.
Tuesday Night
Mostly clear, with a low around 45.
Wednesday
Sunny, with a high near 66.
Wednesday Night
Mostly clear, with a low around 45.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 70.
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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:
11:53 am CDT Oct 3, 2025
Forecast Valid:
1pm CDT Oct 3, 2025-6pm CDT Oct 9, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation