National Weather Service Forecast for: Mason City IA
Issued by: National Weather Service Des Moines, IA
Updated: 10:22 pm CST Feb 1, 2026
 
Overnight

Overnight: Mostly cloudy, with a steady temperature around 15. Wind chill values as low as 5. Northwest wind around 8 mph.
Mostly Cloudy
 Monday

Monday: Partly sunny, with a high near 20. Wind chill values as low as zero. Northwest wind around 6 mph.
Partly Sunny
 Monday
Night
Monday Night: A 20 percent chance of snow. Mostly cloudy, with a low around 9. Light north wind.
Slight Chance
Snow
 Tuesday

Tuesday: Mostly sunny, with a high near 19. Wind chill values as low as 5. North wind 3 to 5 mph.
Mostly Sunny
 Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 5. Calm wind.
Partly Cloudy
 Wednesday

Wednesday: Partly sunny, with a high near 24.
Partly Sunny
 Wednesday
Night
Wednesday Night: Mostly cloudy, with a low around 15.
Mostly Cloudy
 Thursday

Thursday: Mostly sunny, with a high near 37.
Mostly Sunny
 Thursday
Night
Thursday Night: Partly cloudy, with a low around 26.
Partly Cloudy
Lo 15 °F Hi 20 °F Lo 9 °F Hi 19 °F Lo 5 °F Hi 24 °F Lo 15 °F Hi 37 °F Lo 26 °F

 

Overnight
 
 Mostly cloudy, with a steady temperature around 15. Wind chill values as low as 5. Northwest wind around 8 mph.
Monday
 
 Partly sunny, with a high near 20. Wind chill values as low as zero. Northwest wind around 6 mph.
Monday Night
 
 A 20 percent chance of snow. Mostly cloudy, with a low around 9. Light north wind.
Tuesday
 
 Mostly sunny, with a high near 19. Wind chill values as low as 5. North wind 3 to 5 mph.
Tuesday Night
 
 Partly cloudy, with a low around 5. Calm wind.
Wednesday
 
 Partly sunny, with a high near 24.
Wednesday Night
 
 Mostly cloudy, with a low around 15.
Thursday
 
 Mostly sunny, with a high near 37.
Thursday Night
 
 Partly cloudy, with a low around 26.
Friday
 
 Partly sunny, with a high near 31.
Friday Night
 
 Partly cloudy, with a low around 10.
Saturday
 
 Mostly sunny, with a high near 28.
Saturday Night
 
 Partly cloudy, with a low around 18.
Sunday
 
 Mostly sunny, with a high near 32.

 

Forecast from NOAA-NWS for Mason City IA.