Current conditions at

Newton Municipal Airport - Earl Johnson Field (KTNU)

Lat: 41.67°NLon: 93.02°WElev: 945ft.

A Few Clouds

66°F

19°C

Humidity 100%
Wind Speed NW 8 mph
Barometer 30.13 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 15 Sep 4:35 pm CDT
Extended Forecast for

Newton IA

Flood Watch September 15, 04:52pm until September 16, 01:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch September 15, 04:52pm until September 16, 01:00pm

    NOW until 1:00pm Wed

    Flood Watch

  • This Afternoon

    High: 69 °F

    Chance
    Showers

  • Tonight

    Tonight: A slight chance of showers, then a chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 59. North wind around 6 mph becoming east northeast after midnight.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms.  Mostly cloudy, with a high near 70. East northeast wind 6 to 8 mph.  Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 70 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms, mainly after 2am.  Mostly cloudy, with a steady temperature around 68. East wind around 5 mph becoming calm  in the evening.  New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm.  Mostly cloudy, with a high near 79. Light northeast wind.  Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 65. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Chance
    T-storms

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms, mainly before 1pm.  Partly sunny, with a high near 82.

    High: 82 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm.  Low around 68. Chance of precipitation is 80%.

    Low: 68 °F

    Showers

Detailed Forecast

This Afternoon
A 40 percent chance of showers. Cloudy, with a steady temperature around 69. North wind around 6 mph.
Tonight
A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 59. North wind around 6 mph becoming east northeast after midnight. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 70. East northeast wind 6 to 8 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A 40 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a steady temperature around 68. East wind around 5 mph becoming calm in the evening. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 79. Light northeast wind. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A 50 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 82.
Friday Night
Showers and possibly a thunderstorm. Low around 68. Chance of precipitation is 80%.
Saturday
A 40 percent chance of showers before 1pm. Mostly cloudy, with a high near 82.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Sunday
A 50 percent chance of showers. Mostly cloudy, with a high near 73.
Sunday Night
Mostly cloudy, with a low around 59.
Monday
Mostly cloudy, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
Newton IA
 41.71°N 93.04°W
2:57 pm CDT Sep 15, 2026
4pm CDT Sep 15, 2026-6pm CDT Sep 21, 2026
 
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