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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

88°F

31°C

Humidity 75%
Wind Speed N 9 mph
Barometer 29.99 in
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index103°F (39°C)
Last update 5 Sep 12:55 pm CDT
Extended Forecast for

Newton IA

Heat Advisory September 5, 02:46pm until September 5, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 5, 02:46pm until September 5, 07:00pm

    NOW until 7:00pm Sat

    Heat Advisory

  • This Afternoon

    High: 92 °F

    Mostly Cloudy

  • Tonight

    Tonight: Partly cloudy, with a low around 69. East northeast wind around 8 mph.

    Low: 69 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly between 1pm and 4pm. Partly sunny, with a high near 86. East southeast wind around 9 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 65. East southeast wind around 9 mph.

    Low: 65 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Labor Day

    Labor Day: Mostly sunny, with a high near 86. Southeast wind 9 to 11 mph, with gusts as high as 20 mph.

    High: 86 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 70. Chance of precipitation is 70%.

    Low: 70 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 92. Heat index values as high as 103. East wind around 8 mph.
Tonight
Partly cloudy, with a low around 69. East northeast wind around 8 mph.
Sunday
A 30 percent chance of showers and thunderstorms, mainly between 1pm and 4pm. Partly sunny, with a high near 86. East southeast wind around 9 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 65. East southeast wind around 9 mph.
Labor Day
Mostly sunny, with a high near 86. Southeast wind 9 to 11 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 68.
Tuesday
Mostly sunny, with a high near 93.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 70. Chance of precipitation is 70%.
Wednesday
Mostly sunny, with a high near 87.
Wednesday Night
Partly cloudy, with a low around 63.
Thursday
Mostly sunny, with a high near 82.
Thursday Night
Partly cloudy, with a low around 61.
Friday
Mostly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newton IA
 41.69°N 93.04°W
Last Update:
2:36 pm CDT Sep 5, 2026
Forecast Valid:
2pm CDT Sep 5, 2026-6pm CDT Sep 11, 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