National Weather Service Forecast for: Ottumwa IA
Issued by: National Weather Service Des Moines, IA
Updated: 1:26 pm CDT Mar 19, 2026
 
This
Afternoon
This Afternoon: Sunny, with a high near 69. Calm wind.
Sunny

 Tonight

Tonight: Partly cloudy, with a low around 46. Calm wind becoming south around 6 mph after midnight.
Partly Cloudy

 Friday

Friday: Mostly sunny, with a high near 75. West wind around 7 mph becoming north northwest in the afternoon.
Mostly Sunny

 Friday
Night
Friday Night: Partly cloudy, with a low around 46. Light and variable wind.
Partly Cloudy

 Saturday

Saturday: Sunny, with a high near 83. South southwest wind 5 to 9 mph.
Sunny

 Saturday
Night
Saturday Night: Mostly clear, with a low around 57.
Mostly Clear

 Sunday

Sunday: Partly sunny, with a high near 72. Breezy.
Partly Sunny
then Partly
Sunny and
Breezy
 Sunday
Night
Sunday Night: Partly cloudy, with a low around 34.
Partly Cloudy

 Monday

Monday: Mostly sunny, with a high near 55.
Mostly Sunny
Hi 69 °F Lo 46 °F Hi 75 °F Lo 46 °F Hi 83 °F Lo 57 °F Hi 72 °F Lo 34 °F Hi 55 °F

 

This Afternoon
 
 Sunny, with a high near 69. Calm wind.
Tonight
 
 Partly cloudy, with a low around 46. Calm wind becoming south around 6 mph after midnight.
Friday
 
 Mostly sunny, with a high near 75. West wind around 7 mph becoming north northwest in the afternoon.
Friday Night
 
 Partly cloudy, with a low around 46. Light and variable wind.
Saturday
 
 Sunny, with a high near 83. South southwest wind 5 to 9 mph.
Saturday Night
 
 Mostly clear, with a low around 57.
Sunday
 
 Partly sunny, with a high near 72. Breezy.
Sunday Night
 
 Partly cloudy, with a low around 34.
Monday
 
 Mostly sunny, with a high near 55.
Monday Night
 
 Mostly cloudy, with a low around 39.
Tuesday
 
 Mostly cloudy, with a high near 60.
Tuesday Night
 
 Mostly cloudy, with a low around 40.
Wednesday
 
 Partly sunny, with a high near 68.

 

Forecast from NOAA-NWS for Ottumwa IA.