National Weather Service Forecast for: Spencer IA
Issued by: National Weather Service Sioux Falls, SD
Updated: 7:53 pm CDT Sep 12, 2026
 
Tonight

Tonight: A chance of sprinkles after 5am. Partly cloudy, with a low around 49. North northwest wind around 5 mph becoming calm after midnight.
Chance
Sprinkles

 Sunday

Sunday: A chance of showers before noon, then a chance of sprinkles between noon and 2pm. Mostly cloudy, with a high near 69. North northeast wind around 5 mph becoming east in the afternoon. Chance of precipitation is 40%.
Chance
Showers then
Partly Sunny
 Sunday
Night
Sunday Night: A 10 percent chance of showers after 5am. Increasing clouds, with a low around 52. East wind 5 to 10 mph.
Mostly Clear
then Slight
Chance
Showers
 Monday

Monday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10am. High near 76. Breezy, with a southeast wind 20 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 100%.
Showers and
Breezy

 Monday
Night
Monday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Low around 57. South wind 10 to 15 mph becoming west northwest 5 to 10 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%.
Showers

 Tuesday

Tuesday: Partly sunny, with a high near 73. North northwest wind 5 to 10 mph.
Partly Sunny

 Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 50.
Partly Cloudy

 Wednesday

Wednesday: A 50 percent chance of showers. Mostly cloudy, with a high near 66.
Chance
Showers

 Wednesday
Night
Wednesday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 55.
Chance
Showers
Lo 49 °F Hi 69 °F Lo 52 °F Hi 76 °F Lo 57 °F Hi 73 °F Lo 50 °F Hi 66 °F Lo 55 °F

 

Tonight
 
 A chance of sprinkles after 5am. Partly cloudy, with a low around 49. North northwest wind around 5 mph becoming calm after midnight.
Sunday
 
 A chance of showers before noon, then a chance of sprinkles between noon and 2pm. Mostly cloudy, with a high near 69. North northeast wind around 5 mph becoming east in the afternoon. Chance of precipitation is 40%.
Sunday Night
 
 A 10 percent chance of showers after 5am. Increasing clouds, with a low around 52. East wind 5 to 10 mph.
Monday
 
 A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10am. High near 76. Breezy, with a southeast wind 20 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 100%.
Monday Night
 
 Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Low around 57. South wind 10 to 15 mph becoming west northwest 5 to 10 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%.
Tuesday
 
 Partly sunny, with a high near 73. North northwest wind 5 to 10 mph.
Tuesday Night
 
 Partly cloudy, with a low around 50.
Wednesday
 
 A 50 percent chance of showers. Mostly cloudy, with a high near 66.
Wednesday Night
 
 A 50 percent chance of showers. Mostly cloudy, with a low around 55.
Thursday
 
 A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 69.
Thursday Night
 
 A 40 percent chance of showers. Partly cloudy, with a low around 53.
Friday
 
 A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 71.
Friday Night
 
 A 30 percent chance of showers. Partly cloudy, with a low around 52.
Saturday
 
 Partly sunny, with a high near 71.

 

Forecast from NOAA-NWS for Spencer IA.