National Weather Service Forecast for: Spencer IA
Issued by: National Weather Service Sioux Falls, SD
Updated: 5:38 am CDT Jun 22, 2026
 
Today

Today: Mostly sunny, with a high near 77. North wind around 5 mph becoming calm in the morning.
Mostly Sunny

 Tonight

Tonight: Partly cloudy, with a low around 56. Southeast wind around 5 mph.
Partly Cloudy

 Tuesday

Tuesday: A slight chance of showers and thunderstorms before 3pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 78. South southwest wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Slight Chance
Showers then
Slight Chance
T-storms
 Tuesday
Night
Tuesday Night: Showers and thunderstorms likely before 4am, then a slight chance of showers. Partly cloudy, with a low around 58. Southwest wind 5 to 10 mph. Chance of precipitation is 60%.
Showers
Likely

 Wednesday

Wednesday: Sunny, with a high near 79. West northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Sunny

 Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 53. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Partly Cloudy

 Thursday

Thursday: Mostly sunny, with a high near 77.
Mostly Sunny

 Thursday
Night
Thursday Night: Partly cloudy, with a low around 54.
Partly Cloudy

 Friday

Friday: Partly sunny, with a high near 77.
Partly Sunny
Hi 77 °F Lo 56 °F Hi 78 °F Lo 58 °F Hi 79 °F Lo 53 °F Hi 77 °F Lo 54 °F Hi 77 °F

Hazardous Weather Outlook
 

Today
 
 Mostly sunny, with a high near 77. North wind around 5 mph becoming calm in the morning.
Tonight
 
 Partly cloudy, with a low around 56. Southeast wind around 5 mph.
Tuesday
 
 A slight chance of showers and thunderstorms before 3pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 78. South southwest wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Tuesday Night
 
 Showers and thunderstorms likely before 4am, then a slight chance of showers. Partly cloudy, with a low around 58. Southwest wind 5 to 10 mph. Chance of precipitation is 60%.
Wednesday
 
 Sunny, with a high near 79. West northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
 
 Partly cloudy, with a low around 53. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday
 
 Mostly sunny, with a high near 77.
Thursday Night
 
 Partly cloudy, with a low around 54.
Friday
 
 Partly sunny, with a high near 77.
Friday Night
 
 Mostly cloudy, with a low around 59.
Saturday
 
 Partly sunny, with a high near 83. Breezy.
Saturday Night
 
 A 40 percent chance of showers. Mostly cloudy, with a low around 67. Breezy.
Sunday
 
 Mostly sunny, with a high near 89. Breezy.

 

Forecast from NOAA-NWS for Spencer IA.