National Weather Service Forecast for: Altoona IA
Issued by: National Weather Service Des Moines, IA
Updated: 8:02 pm CST Dec 22, 2025
 
Tonight

Tonight: Partly cloudy, with a low around 35. South wind 5 to 7 mph becoming northwest after midnight.
Partly Cloudy
 Tuesday

Tuesday: Mostly sunny, with a high near 44. Northwest wind around 6 mph becoming northeast in the afternoon.
Mostly Sunny
 Tuesday
Night
Tuesday Night: Mostly cloudy, with a low around 30. Northeast wind around 7 mph becoming east southeast after midnight.
Mostly Cloudy
 Wednesday

Wednesday: Cloudy, with a high near 46. East southeast wind 3 to 7 mph.
Cloudy
 Wednesday
Night
Wednesday Night: Mostly cloudy, with a low around 36. Light north northeast wind.
Mostly Cloudy
 Christmas
Day
Christmas Day: Mostly cloudy, with a high near 51.
Mostly Cloudy
 Thursday
Night
Thursday Night: Mostly cloudy, with a low around 40.
Mostly Cloudy
 Friday

Friday: Mostly sunny, with a high near 50.
Mostly Sunny
 Friday
Night
Friday Night: Mostly cloudy, with a low around 36.
Mostly Cloudy
Lo 35 °F Hi 44 °F Lo 30 °F Hi 46 °F Lo 36 °F Hi 51 °F Lo 40 °F Hi 50 °F Lo 36 °F

 

Tonight
 
 Partly cloudy, with a low around 35. South wind 5 to 7 mph becoming northwest after midnight.
Tuesday
 
 Mostly sunny, with a high near 44. Northwest wind around 6 mph becoming northeast in the afternoon.
Tuesday Night
 
 Mostly cloudy, with a low around 30. Northeast wind around 7 mph becoming east southeast after midnight.
Wednesday
 
 Cloudy, with a high near 46. East southeast wind 3 to 7 mph.
Wednesday Night
 
 Mostly cloudy, with a low around 36. Light north northeast wind.
Christmas Day
 
 Mostly cloudy, with a high near 51.
Thursday Night
 
 Mostly cloudy, with a low around 40.
Friday
 
 Mostly sunny, with a high near 50.
Friday Night
 
 Mostly cloudy, with a low around 36.
Saturday
 
 Partly sunny, with a high near 53.
Saturday Night
 
 Mostly cloudy, with a low around 21.
Sunday
 
 Sunny, with a high near 29.
Sunday Night
 
 Mostly clear, with a low around 16.
Monday
 
 Sunny, with a high near 32.

 

Forecast from NOAA-NWS for Altoona IA.