Hazardous Weather Conditions
Current conditions at
Newton Municipal Airport - Earl Johnson Field (KTNU)
Lat: 41.67°NLon: 93.02°WElev: 945ft.
Fair
81°F
27°C
| Humidity | 100% |
| Wind Speed | S 5 mph |
| Barometer | 29.85 in |
| Dewpoint | 81°F (27°C) |
| Visibility | 10.00 mi |
| Heat Index | 91°F (33°C) |
| Last update | 3 Sep 8:55 pm CDT |
Extended Forecast for
Newton IA
Heat Advisory September 3, 09:06pm until September 5, 07:00pm
NOW until 7:00pm Sat

Heat Advisory
Tonight

Low: 74 °F
Clear
Friday

High: 95 °F
Sunny
Friday Night

Low: 71 °F
Partly Cloudy
Saturday

High: 93 °F
Sunny
Saturday Night

Low: 69 °F
Mostly Clear
Sunday
High: 89 °F
Slight Chance
T-storms then
Chance
ShowersSunday Night

Low: 68 °F
Partly Cloudy
Labor Day

High: 89 °F
Mostly Sunny
Detailed Forecast
Tonight
Clear, with a low around 74. South wind 7 to 9 mph.
Friday
Sunny, with a high near 95. Heat index values as high as 104. South southwest wind 6 to 9 mph.
Friday Night
Partly cloudy, with a low around 71. Light south southwest wind.
Saturday
Sunny, with a high near 93. Heat index values as high as 102. Light and variable wind.
Saturday Night
Mostly clear, with a low around 69. East wind 3 to 6 mph.
Sunday
A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Partly cloudy, with a low around 68.
Labor Day
Mostly sunny, with a high near 89.
Monday Night
Partly cloudy, with a low around 71.
Tuesday
A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 96.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Wednesday
A 30 percent chance of showers. Mostly sunny, with a high near 92.
Wednesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 68.
Thursday
Mostly sunny, with a high near 87.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Newton IA
41.69°N 93.04°W
41.69°N 93.04°W
8:06 pm CDT Sep 3, 2026
9pm CDT Sep 3, 2026-6pm CDT Sep 10, 2026



