Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Newton Municipal Airport - Earl Johnson Field (KTNU)

Lat: 41.67°NLon: 93.02°WElev: 945ft.

Fair

91°F

33°C

Humidity	63%
Wind Speed	S 7 mph
Barometer	29.94 in
Dewpoint	77°F (25°C)
Visibility	10.00 mi
Heat Index	104°F (40°C)
Last update	17 Aug 4:55 pm CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Newton IA

Tonight
Low: 73 °F
Mostly Clear
then Slight
Chance
T-storms
Monday
High: 89 °F
Chance
T-storms
Monday Night
Low: 70 °F
Chance
T-storms
Tuesday
High: 85 °F
Slight Chance
T-storms then
Slight Chance
Showers
Tuesday Night
Low: 63 °F
Mostly Clear
Wednesday
High: 81 °F
Sunny
Wednesday Night
Low: 61 °F
Mostly Clear
Thursday
High: 80 °F
Sunny
Thursday Night
Low: 60 °F
Mostly Clear

Detailed Forecast

Tonight

A 10 percent chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 73. South southeast wind 6 to 8 mph.

Monday

A 30 percent chance of showers and thunderstorms, mainly before 8am. Partly sunny, with a high near 89. Heat index values as high as 100. South southeast wind 6 to 10 mph becoming southwest in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Monday Night

A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70. West wind around 5 mph becoming light and variable after midnight. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tuesday

A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Mostly sunny, with a high near 85. North wind 3 to 6 mph. Chance of precipitation is 20%.

Tuesday Night

Mostly clear, with a low around 63. North northeast wind around 6 mph.

Wednesday

Sunny, with a high near 81.

Wednesday Night

Mostly clear, with a low around 61.

Thursday

Sunny, with a high near 80.

Thursday Night

Mostly clear, with a low around 60.

Friday

Sunny, with a high near 83.