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

59°F

15°C

Humidity 55%
Wind Speed SW 16 mph
Barometer 29.90 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 21 Apr 3:15 am CDT
Extended Forecast for

Newton IA

  • Overnight

    Overnight: Partly cloudy, with a low around 52. South southwest wind around 14 mph, with gusts as high as 23 mph.

    Low: 52 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 80. West wind 9 to 14 mph, with gusts as high as 21 mph.

    High: 80 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 53. Northwest wind around 6 mph becoming south southeast after midnight.

    Low: 53 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79. South wind 6 to 14 mph, with gusts as high as 21 mph.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 59. South wind 11 to 14 mph, with gusts as high as 21 mph.

    Low: 59 °F

    Partly Cloudy

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 75. Windy. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Mostly Cloudy
    and Breezy
    then Chance
    T-storms and
    Windy

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Low around 51. Breezy. Chance of precipitation is 90%.

    Low: 51 °F

    Showers and
    Breezy

  • Friday

    Friday: A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 66.

    High: 66 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 52. South southwest wind around 14 mph, with gusts as high as 23 mph.
Tuesday
Sunny, with a high near 80. West wind 9 to 14 mph, with gusts as high as 21 mph.
Tuesday Night
Clear, with a low around 53. Northwest wind around 6 mph becoming south southeast after midnight.
Wednesday
Sunny, with a high near 79. South wind 6 to 14 mph, with gusts as high as 21 mph.
Wednesday Night
Partly cloudy, with a low around 59. South wind 11 to 14 mph, with gusts as high as 21 mph.
Thursday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 75. Windy. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Low around 51. Breezy. Chance of precipitation is 90%.
Friday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 66.
Friday Night
Mostly clear, with a low around 45.
Saturday
Mostly sunny, with a high near 65.
Saturday Night
Mostly cloudy, with a low around 43.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 62.
Sunday Night
Showers likely. Mostly cloudy, with a low around 47. Chance of precipitation is 60%.
Monday
A 50 percent chance of showers. Mostly cloudy, with a high near 63.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Newton IA
 41.71°N 93.04°W
Last Update:
3:07 am CDT Apr 21, 2026
Forecast Valid:
3am CDT Apr 21, 2026-6pm CDT Apr 27, 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