National Weather Service Forecast for: Newton IA
Issued by: National Weather Service Des Moines, IA
Updated: 6:57 am CDT May 29, 2026
 
Today

Today: Mostly cloudy, with a high near 82. East southeast wind around 8 mph.
Mostly Cloudy

 Tonight

Tonight: A chance of showers, with thunderstorms also possible after 4am. Cloudy, with a low around 63. East wind around 6 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
Showers

 Saturday

Saturday: A 30 percent chance of showers and thunderstorms, mainly after noon. Mostly cloudy, with a high near 78. East southeast wind 7 to 15 mph, with gusts as high as 24 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
Showers then
Chance
T-storms
 Saturday
Night
Saturday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 61. East wind 11 to 13 mph, with gusts as high as 22 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
T-storms then
Chance
Showers
 Sunday

Sunday: A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 80. East southeast wind 11 to 13 mph, with gusts as high as 21 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
Showers then
Chance
T-storms
 Sunday
Night
Sunday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
T-storms

 Monday

Monday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 84.
Slight Chance
T-storms

 Monday
Night
Monday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 61. Chance of precipitation is 20%.
Slight Chance
T-storms

 Tuesday

Tuesday: Mostly sunny, with a high near 82.
Mostly Sunny
Hi 82 °F Lo 63 °F Hi 78 °F Lo 61 °F Hi 80 °F Lo 62 °F Hi 84 °F Lo 61 °F Hi 82 °F

Hazardous Weather Outlook
 

Today
 
 Mostly cloudy, with a high near 82. East southeast wind around 8 mph.
Tonight
 
 A chance of showers, with thunderstorms also possible after 4am. Cloudy, with a low around 63. East wind around 6 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
 
 A 30 percent chance of showers and thunderstorms, mainly after noon. Mostly cloudy, with a high near 78. East southeast wind 7 to 15 mph, with gusts as high as 24 mph. 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, mainly after 1am. Mostly cloudy, with a low around 61. East wind 11 to 13 mph, with gusts as high as 22 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
 
 A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 80. East southeast wind 11 to 13 mph, with gusts as high as 21 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
 
 A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
 
 A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 84.
Monday Night
 
 A slight chance of showers and thunderstorms. Partly cloudy, with a low around 61. Chance of precipitation is 20%.
Tuesday
 
 Mostly sunny, with a high near 82.
Tuesday Night
 
 Partly cloudy, with a low around 58.
Wednesday
 
 Mostly sunny, with a high near 82.
Wednesday Night
 
 Partly cloudy, with a low around 60.
Thursday
 
 Mostly sunny, with a high near 84.

 

Forecast from NOAA-NWS for Newton IA.