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

81°F

27°C

Humidity 84%
Wind Speed N 3 mph
Barometer 29.89 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 28 Jul 7:55 pm CDT
Extended Forecast for

Newton Municipal IA

  • Tonight

    Tonight: Patchy smoke before 2am. Mostly clear, with a low around 69. East northeast wind 3 to 5 mph.

    Low: 69 °F

    Patchy Smoke

  • Wednesday

    Wednesday: Sunny, with a high near 88. South southeast wind 3 to 7 mph.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 68. Southeast wind around 7 mph.

    Low: 68 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 86. South southeast wind 6 to 9 mph.

    High: 86 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: A chance of showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then showers and possibly a thunderstorm after 1am. Low around 66. South southeast wind around 9 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 66 °F

    Chance
    Showers then
    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 80. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

    High: 80 °F

    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 63. Breezy.

    Low: 63 °F

    Chance
    Showers and
    Breezy

  • Saturday

    Saturday: Mostly sunny, with a high near 81. Breezy.

    High: 81 °F

    Mostly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy smoke before 2am. Mostly clear, with a low around 69. East northeast wind 3 to 5 mph.
Wednesday
Sunny, with a high near 88. South southeast wind 3 to 7 mph.
Wednesday Night
Mostly clear, with a low around 68. Southeast wind around 7 mph.
Thursday
Increasing clouds, with a high near 86. South southeast wind 6 to 9 mph.
Thursday Night
A chance of showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then showers and possibly a thunderstorm after 1am. Low around 66. South southeast wind around 9 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
Showers and possibly a thunderstorm. High near 80. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 63. Breezy.
Saturday
Mostly sunny, with a high near 81. Breezy.
Saturday Night
Mostly clear, with a low around 63.
Sunday
Sunny, with a high near 83.
Sunday Night
Clear, with a low around 63.
Monday
Sunny, with a high near 85.
Monday Night
Mostly clear, with a low around 65.
Tuesday
Mostly sunny, with a high near 87.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newton Municipal IA
 41.67°N 93.01°W
Last Update:
4:12 pm CDT Jul 28, 2026
Forecast Valid:
8pm CDT Jul 28, 2026-6pm CDT Aug 4, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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