Current conditions at

Newton Municipal Airport - Earl Johnson Field (KTNU)

Lat: 41.67°NLon: 93.02°WElev: 945ft.

Overcast

68°F

20°C

Humidity 100%
Wind Speed E 5 mph
Barometer 30.23 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 16 Sep 7:35 pm CDT
Extended Forecast for

Newton IA

Flood Watch September 16, 07:53pm until September 17, 10:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch September 16, 07:53pm until September 17, 10:00am

    NOW until 10:00am Thu

    Flood Watch

  • Tonight

    Low: 67 °F

    Heavy Rain
    and Patchy
    Fog

  • Thursday

    Thursday: A chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and noon.  Patchy fog before 11am.  Otherwise, cloudy, with a high near 75. Light and variable wind.  Chance of precipitation is 40%. New precipitation amounts between a quarter and half of an inch possible.

    High: 75 °F

    Chance
    Showers and
    Patchy Fog
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms after 3am.  Mostly cloudy, with a low around 66. Northeast wind 3 to 7 mph.

    Low: 66 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms before 1pm.  Cloudy through mid morning, then gradual clearing, with a high near 81. East southeast wind 9 to 13 mph, with gusts as high as 21 mph.  New rainfall amounts between a quarter and half of an inch possible.

    High: 81 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Partly cloudy, with a low around 70. South southeast wind 9 to 11 mph, with gusts as high as 20 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms, mainly before 1pm.  Partly sunny, with a high near 80. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday Night

    Saturday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 64.

    Low: 64 °F

    Chance
    T-storms

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a high near 68. Chance of precipitation is 60%.

    High: 68 °F

    Showers
    Likely

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Some of the storms could produce heavy rainfall. Patchy fog before 9pm, then patchy fog after 1am. Otherwise, cloudy, with a steady temperature around 67. East wind around 5 mph becoming calm after midnight. Chance of precipitation is 60%. New rainfall amounts between 1 and 2 inches possible.
Thursday
A chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and noon. Patchy fog before 11am. Otherwise, cloudy, with a high near 75. Light and variable wind. Chance of precipitation is 40%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
A 20 percent chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 66. Northeast wind 3 to 7 mph.
Friday
A 50 percent chance of showers and thunderstorms before 1pm. Cloudy through mid morning, then gradual clearing, with a high near 81. East southeast wind 9 to 13 mph, with gusts as high as 21 mph. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 70. South southeast wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A 50 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 80. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Sunday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 68. Chance of precipitation is 60%.
Sunday Night
A chance of showers and thunderstorms, then showers likely after 1am. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Monday
A 40 percent chance of showers before 1pm. Mostly cloudy, with a high near 66.
Monday Night
Mostly cloudy, with a low around 58.
Tuesday
Partly sunny, with a high near 68.
Tuesday Night
Partly cloudy, with a low around 57.
Wednesday
Mostly sunny, with a high near 70.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Newton IA
 41.69°N 93.04°W
7:43 pm CDT Sep 16, 2026
7pm CDT Sep 16, 2026-6pm CDT Sep 23, 2026
 
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