National Weather Service Forecast for: Grinnell IA
Issued by: National Weather Service Des Moines, IA
Updated: 11:03 pm CDT Sep 24, 2018

Grinnell
 
Overnight

Overnight: Mostly cloudy, with a low around 60. Southwest wind around 6 mph.
Mostly Cloudy

Tuesday

Tuesday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1pm.  High near 70. Breezy, with a south southwest wind 5 to 10 mph becoming northwest 11 to 16 mph in the afternoon. Winds could gust as high as 23 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Showers and
Breezy
Tuesday
Night
Tuesday Night: A 30 percent chance of showers before 7pm.  Partly cloudy, with a low around 46. Northwest wind 7 to 13 mph, with gusts as high as 20 mph.  New precipitation amounts of less than a tenth of an inch possible.
Chance
Showers then
Mostly Clear
Wednesday

Wednesday: Sunny, with a high near 64. West northwest wind 9 to 13 mph, with gusts as high as 18 mph.
Sunny

Wednesday
Night
Wednesday Night: Mostly clear, with a low around 46. West wind 6 to 8 mph becoming south after midnight.
Mostly Clear

Thursday

Thursday: Mostly sunny, with a high near 69. Breezy.
Mostly Sunny
and Breezy
Thursday
Night
Thursday Night: Mostly cloudy, with a low around 44.
Mostly Cloudy

Friday

Friday: A 40 percent chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 61.
Partly Sunny
then Chance
Showers
Friday
Night
Friday Night: A 40 percent chance of showers.  Mostly cloudy, with a low around 42.
Chance
Showers
Lo 60 °F Hi 70 °F Lo 46 °F Hi 64 °F Lo 46 °F Hi 69 °F Lo 44 °F Hi 61 °F Lo 42 °F

 

Overnight
 
Mostly cloudy, with a low around 60. Southwest wind around 6 mph.
Tuesday
 
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1pm. High near 70. Breezy, with a south southwest wind 5 to 10 mph becoming northwest 11 to 16 mph in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
 
A 30 percent chance of showers before 7pm. Partly cloudy, with a low around 46. Northwest wind 7 to 13 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
 
Sunny, with a high near 64. West northwest wind 9 to 13 mph, with gusts as high as 18 mph.
Wednesday Night
 
Mostly clear, with a low around 46. West wind 6 to 8 mph becoming south after midnight.
Thursday
 
Mostly sunny, with a high near 69. Breezy.
Thursday Night
 
Mostly cloudy, with a low around 44.
Friday
 
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 61.
Friday Night
 
A 40 percent chance of showers. Mostly cloudy, with a low around 42.
Saturday
 
A 50 percent chance of showers. Mostly cloudy, with a high near 59.
Saturday Night
 
A 40 percent chance of showers. Mostly cloudy, with a low around 44.
Sunday
 
A 40 percent chance of showers. Mostly cloudy, with a high near 67.
Sunday Night
 
Showers likely. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.
Monday
 
A 40 percent chance of showers. Mostly cloudy, with a high near 72.

 

Forecast from NOAA-NWS for Grinnell IA.