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Hazardous Weather Conditions

No active alerts for GRINNELL, IOWA

Current Conditions: GRINNELL, IOWA

Mostly Cloudy


19.4 F
Last Updated on Mar 1 2026, 03:30 AM CST
Humidity: 73%
Wind Speed: NE 12.7 mph
Barometer: 30.39 in
Dewpoint: 12.2 F
Visibility: 10.00 mi
Precip: --
Heat Index: NA
Wind Chill: 6.6 F
Current conditions at:

MARSHALLTOWN (KMIW)

Lat: 42.11 Lon: -92.91

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5 Day Forecast for GRINNELL, IOWA (50112)

Sunday
Overcast
High 35 °F
Sunday
Night
Mostly Cloudy
Low 26 °F
Monday
Slight Chance of Rain
High 41 °F
Monday
Night
Rain Likely
Low 35 °F
Tuesday
Scattered T-storms Likely
High 46 °F
Tuesday
Night
Mostly Cloudy
Low 35 °F
Wednesday
Slight Chance of Rain
High 50 °F
Wednesday
Night
Chance of Rain
Low 35 °F
Thursday
Chance of T-storms
High 57 °F



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Observation History for GRINNELL, IOWA


Time Wind
(mph)		 Vis
(mi)		 Weather Precip (in) Temperature (F) Relative
Humidity		 Wind
Chill
(F)		 Heat
Index
(F)		 Pressure
Air Dwpt altimeter
(in)		 sea level
(mb)
03:30 AM CST NE 12.7 10.00 Mostly Cloudy -- 19.4 12.2 73% 6.6 NA 30.39 1029.1
03:25 AM CST NE 11.5 10.00 Mostly Cloudy -- 19.4 12.2 73% 7.2 NA 30.39 1029.1
03:15 AM CST NE 12.7 10.00 Mostly Cloudy -- 19.4 12.2 73% 6.6 NA 30.39 1029.1
03:00 AM CST NE 11.5 10.00 Mostly Cloudy -- 19.4 12.2 73% 7.2 NA 30.39 1029.1
02:50 AM CST NE 13.8 10.00 Cloudy -- 19.4 12.2 73% 6.1 NA 30.40 1029.5
02:35 AM CST NE 15.0 10.00 Cloudy -- 21.2 12.2 68% 7.7 NA 30.40 1029.5
02:25 AM CST NE 12.7 10.00 Cloudy -- 21.2 12.2 68% 8.8 NA 30.40 1029.5
02:20 AM CST NE 12.7 10.00 Mostly Cloudy -- 19.4 12.2 73% 6.6 NA 30.41 1029.8
02:15 AM CST 12.7 10.00 Mostly Cloudy -- 19.4 12.2 73% 6.6 NA 30.40 1029.5
02:05 AM CST 11.5 10.00 Partly Cloudy -- 19.4 12.2 73% 7.2 NA 30.40 1029.5
02:00 AM CST 13.8 10.00 Mostly Clear -- 19.4 12.2 73% 6.1 NA 30.40 1029.5
01:45 AM CST 15.0 10.00 Clear -- 19.4 12.2 73% 5.5 NA 30.39 1029.1
01:35 AM CST 13.8 10.00 Clear -- 19.4 12.2 73% 6.1 NA 30.39 1029.1
01:30 AM CST 13.8 10.00 Clear -- 19.4 12.2 73% 6.1 NA 30.39 1029.1
01:25 AM CST 13.8 10.00 Clear -- 19.4 12.2 73% 6.1 NA 30.39 1029.1
01:20 AM CST 13.8 10.00 Clear -- 19.4 12.2 73% 6.1 NA 30.38 1028.8
01:15 AM CST NE 13.8 10.00 Clear -- 19.4 12.2 73% 6.1 NA 30.38 1028.8
01:10 AM CST NE 15.0 10.00 Clear -- 19.4 12.2 73% 5.5 NA 30.38 1028.8
01:00 AM CST 12.7 10.00 Clear -- 19.4 14.0 79% 6.6 NA 30.38 1028.8
12:50 AM CST 13.8 10.00 Clear -- 19.4 14.0 79% 6.1 NA 30.38 1028.8
12:45 AM CST 12.7 10.00 Clear -- 19.4 14.0 79% 6.6 NA 30.38 1028.8
12:35 AM CST 12.7 10.00 Clear -- 19.4 15.8 86% 6.6 NA 30.37 1028.4
12:25 AM CST 11.5 10.00 Clear -- 19.4 14.0 79% 7.2 NA 30.37 1028.4
12:20 AM CST 11.5 10.00 Clear -- 19.4 14.0 79% 7.2 NA 30.37 1028.4

Regional Weather Observation

MARSHALLTOWN (KMIW)

Mostly Cloudy
19.4 F

NEWTON MUNI (KTNU)

Clear
21.2 F

AMES (KAMW)

Clear
19.4 F

PELLA (KPEA)

Clear
19.8 F

ANKENY (KIKV)

Clear
19.4 F

IOWA FALLS MUNI (KIFA)

Cloudy
21.7 F

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