National Weather Service Forecast for: Waterloo IA
Issued by: National Weather Service Des Moines, IA
Updated: 8:52 am CDT May 25, 2025
 
Today

Today: Mostly sunny, with a high near 71. East northeast wind around 9 mph.
Mostly Sunny

 Tonight

Tonight: Partly cloudy, with a low around 47. East wind 5 to 8 mph.
Partly Cloudy

 Memorial
Day
Memorial Day: Increasing clouds, with a high near 70. East southeast wind 6 to 10 mph.
Increasing
Clouds

 Monday
Night
Monday Night: A 50 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 52. East wind 7 to 9 mph. New precipitation amounts of less than a tenth of an inch possible.
Slight Chance
Showers then
Chance
Showers
 Tuesday

Tuesday: Showers likely, mainly after 1pm. Mostly cloudy, with a high near 64. East northeast wind 8 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Showers
Likely

 Tuesday
Night
Tuesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 50. New precipitation amounts of less than a tenth of an inch possible.
Chance
Showers

 Wednesday

Wednesday: A 30 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 66.
Chance
Showers

 Wednesday
Night
Wednesday Night: Mostly cloudy, with a low around 49.
Mostly Cloudy

 Thursday

Thursday: Mostly sunny, with a high near 72.
Mostly Sunny
Hi 71 °F Lo 47 °F Hi 70 °F Lo 52 °F Hi 64 °F Lo 50 °F Hi 66 °F Lo 49 °F Hi 72 °F

 

Today
 
 Mostly sunny, with a high near 71. East northeast wind around 9 mph.
Tonight
 
 Partly cloudy, with a low around 47. East wind 5 to 8 mph.
Memorial Day
 
 Increasing clouds, with a high near 70. East southeast wind 6 to 10 mph.
Monday Night
 
 A 50 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 52. East wind 7 to 9 mph. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
 
 Showers likely, mainly after 1pm. Mostly cloudy, with a high near 64. East northeast wind 8 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
 
 A 40 percent chance of showers. Mostly cloudy, with a low around 50. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
 
 A 30 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 66.
Wednesday Night
 
 Mostly cloudy, with a low around 49.
Thursday
 
 Mostly sunny, with a high near 72.
Thursday Night
 
 Partly cloudy, with a low around 52.
Friday
 
 Sunny, with a high near 79.
Friday Night
 
 Mostly clear, with a low around 56.
Saturday
 
 Sunny, with a high near 83.

 

Forecast from NOAA-NWS for Waterloo IA.