National Weather Service Forecast for: Ottumwa IA
Issued by: National Weather Service Des Moines, IA
Updated: 10:46 pm CST Dec 4, 2025
 
Overnight

Overnight: Mostly clear early, then becoming mostly cloudy, with a low around 7. South wind 8 to 10 mph.
Mostly Cloudy

 Friday

Friday: Mostly sunny, with a high near 34. Wind chill values as low as 5. South wind 7 to 11 mph, with gusts as high as 22 mph.
Mostly Sunny

 Friday
Night
Friday Night: Mostly cloudy, with a low around 20. Southwest wind 6 to 9 mph becoming north northwest after midnight.
Mostly Cloudy

 Saturday

Saturday: Partly sunny, with a high near 29. Calm wind becoming east southeast 5 to 7 mph in the afternoon.
Partly Sunny

 Saturday
Night
Saturday Night: Snow likely. Cloudy, with a low around 17. East wind 6 to 9 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Snow Likely

 Sunday

Sunday: A 20 percent chance of snow before noon. Partly sunny, with a high near 23.
Slight Chance
Snow then
Partly Sunny
 Sunday
Night
Sunday Night: Partly cloudy, with a low around -4.
Partly Cloudy

 Monday

Monday: Partly sunny, with a high near 27.
Partly Sunny

 Monday
Night
Monday Night: Mostly cloudy, with a low around 19.
Mostly Cloudy
Lo 7 °F Hi 34 °F Lo 20 °F Hi 29 °F Lo 17 °F Hi 23 °F Lo -4 °F Hi 27 °F Lo 19 °F

 

Overnight
 
 Mostly clear early, then becoming mostly cloudy, with a low around 7. South wind 8 to 10 mph.
Friday
 
 Mostly sunny, with a high near 34. Wind chill values as low as 5. South wind 7 to 11 mph, with gusts as high as 22 mph.
Friday Night
 
 Mostly cloudy, with a low around 20. Southwest wind 6 to 9 mph becoming north northwest after midnight.
Saturday
 
 Partly sunny, with a high near 29. Calm wind becoming east southeast 5 to 7 mph in the afternoon.
Saturday Night
 
 Snow likely. Cloudy, with a low around 17. East wind 6 to 9 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Sunday
 
 A 20 percent chance of snow before noon. Partly sunny, with a high near 23.
Sunday Night
 
 Partly cloudy, with a low around -4.
Monday
 
 Partly sunny, with a high near 27.
Monday Night
 
 Mostly cloudy, with a low around 19.
Tuesday
 
 Partly sunny, with a high near 36.
Tuesday Night
 
 A 30 percent chance of rain. Cloudy, with a low around 25.
Wednesday
 
 A 30 percent chance of rain. Mostly cloudy, with a high near 36.
Wednesday Night
 
 Mostly cloudy, with a low around 13.
Thursday
 
 Partly sunny, with a high near 28.

 

Forecast from NOAA-NWS for Ottumwa IA.