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Hazardous Weather Conditions

Current conditions at

Newton Municipal Airport - Earl Johnson Field (KTNU)

Lat: 41.67°NLon: 93.02°WElev: 945ft.

Fair

86°F

30°C

Humidity 62%
Wind Speed SW 10 mph
Barometer 29.96 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 1 Sep 10:35 am CDT
Extended Forecast for

Newton Municipal IA

Heat Advisory September 1, 10:45am until September 2, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 1, 10:45am until September 2, 07:00pm

    NOW until 7:00pm Wed

    Heat Advisory

  • Today

    High: 93 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 75. South southeast wind 6 to 9 mph.

    Low: 75 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 94. Heat index values as high as 101. Southwest wind 7 to 11 mph.

    High: 94 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 75. South wind 5 to 8 mph.

    Low: 75 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 94. South southwest wind 7 to 11 mph.

    High: 94 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 93.

    High: 93 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 73.

    Low: 73 °F

    Partly Cloudy

Detailed Forecast

Today
Mostly sunny, with a high near 93. Heat index values as high as 102. South wind 5 to 8 mph.
Tonight
Mostly clear, with a low around 75. South southeast wind 6 to 9 mph.
Wednesday
Sunny, with a high near 94. Heat index values as high as 101. Southwest wind 7 to 11 mph.
Wednesday Night
Mostly clear, with a low around 75. South wind 5 to 8 mph.
Thursday
Mostly sunny, with a high near 94. South southwest wind 7 to 11 mph.
Thursday Night
Mostly clear, with a low around 76.
Friday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 93.
Friday Night
Partly cloudy, with a low around 73.
Saturday
Mostly sunny, with a high near 94.
Saturday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72.
Sunday
Mostly sunny, with a high near 90.
Sunday Night
Partly cloudy, with a low around 69.
Labor Day
Mostly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newton Municipal IA
 41.69°N 93.01°W
Last Update:
9:19 am CDT Sep 1, 2026
Forecast Valid:
10am CDT Sep 1, 2026-6pm CDT Sep 7, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation