Griswold, IA Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for Griswold, IA.

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Current Conditions — Griswold, IA

ATLANTIC (KAIO)

Mostly Cloudy

59.0 F
Humidity:94%
Wind Speed:E 5.7 mph
Barometer:29.62 in
Dewpoint:57.2 F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:NA
Apr 27 2026, 01:15 AM CDT
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5-Day Forecast — Griswold, IA

Monday

High 68 °F
T-storms
Monday
Night
Low 41 °F
Mostly Cloudy
Tuesday

High 59 °F
Mostly Cloudy
Tuesday
Night
Low 37 °F
Partly Cloudy
Wednesday

High 62 °F
Partly Sunny
Wednesday
Night
Low 39 °F
Partly Cloudy
Thursday

High 64 °F
Isolated T-storm
Thursday
Night
Low 39 °F
Partly Cloudy
Friday

High 64 °F
Partly Sunny

Detailed Forecast — Griswold, IA

Monday
Thunderstorms. High near 68°F. Wind 13 to 24 mph, with gusts as high as 35 mph.
Monday Night
Mostly Cloudy. Low around 41°F. Wind 12 to 23 mph, with gusts as high as 31 mph.
Tuesday
Mostly Cloudy. High near 59°F. Wind 8 to 10 mph, with gusts as high as 16 mph.
Tuesday Night
Partly Cloudy. Low around 37°F. Wind around 6 mph, with gusts as high as 10 mph.
Wednesday
Partly Sunny. High near 62°F. Wind 5 to 9 mph, with gusts as high as 14 mph.
Wednesday Night
Partly Cloudy. Low around 39°F. Wind around 1 mph, with gusts as high as 3 mph.
Thursday
Isolated T-storm. High near 64°F. Wind 8 to 9 mph, with gusts as high as 13 mph.
Thursday Night
Partly Cloudy. Low around 39°F. Wind around 3 mph, with gusts as high as 6 mph.
Friday
Partly Sunny. High near 64°F. Wind 5 to 7 mph, with gusts as high as 12 mph.
Friday Night
Mostly Clear. Low around 39°F. Wind around 2 mph, with gusts as high as 5 mph.
Saturday
Mostly Sunny. High near 71°F. Wind 6 to 7 mph, with gusts as high as 12 mph.
Saturday Night
Partly Cloudy. Low around 44°F. Wind around 5 mph, with gusts as high as 7 mph.
Sunday
Mostly Sunny. High near 73°F. Wind 7 to 9 mph, with gusts as high as 14 mph.
IA Radar
Current Radar • IA
Day 1 Outlook • April 27, 2026

Observation History — Griswold, IA

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)
01:15 AM CDT E 5.7 10.00 Mostly Cloudy -- 59.0 57.2 94% NA NA 29.62 1003.0
12:55 AM CDT 0.0 10.00 Mostly Cloudy -- 59.0 57.2 94% NA NA 29.65 1004.1
12:35 AM CDT 0.0 10.00 Mostly Cloudy -- 60.8 57.2 88% NA NA 29.66 1004.4
12:15 AM CDT 0.0 10.00 Mostly Cloudy -- 60.8 57.2 88% NA NA 29.66 1004.4
11:55 PM CDT 6.9 G 12.8 10.00 Clear -- 60.8 57.2 88% NA NA 29.65 1004.1
11:35 PM CDT 5.8 G 13.9 10.00 Clear -- 60.8 57.2 88% NA NA 29.66 1004.4
11:15 PM CDT SE 9.2 G 17.2 10.00 Clear -- 60.8 59.0 94% NA NA 29.66 1004.4
10:55 PM CDT SE 8.1 G 15.0 10.00 Clear -- 62.6 59.0 88% NA NA 29.66 1004.4
10:35 PM CDT 8.1 10.00 Clear -- 62.6 59.0 88% NA NA 29.68 1004.8
10:15 PM CDT SE 9.2 10.00 Clear -- 62.6 59.0 88% NA NA 29.68 1005.1
09:55 PM CDT SE 8.1 10.00 Clear -- 62.6 59.0 88% NA NA 29.68 1005.1
09:35 PM CDT SE 10.3 G 18.3 10.00 Clear -- 64.4 59.0 83% NA NA 29.69 1005.4
09:15 PM CDT SE 10.3 G 21.9 10.00 Mostly Clear -- 64.4 59.0 83% NA NA 29.69 1005.4
08:55 PM CDT SE 10.3 G 17.2 10.00 Mostly Clear -- 64.4 59.0 83% NA NA 29.69 1005.4
08:35 PM CDT SE 15.0 10.00 NULL -- 64.4 59.0 83% NA NA 29.68 1005.1
08:15 PM CDT 13.9 G 20.8 10.00 Clear -- 66.2 59.0 78% NA NA 29.68 1005.1
07:55 PM CDT 11.4 G 23.0 10.00 Clear -- 66.2 59.0 78% NA NA 29.68 1005.1
07:35 PM CDT 15.0 G 21.9 10.00 Mostly Clear -- 66.2 59.0 78% NA NA 29.68 1005.1
07:15 PM CDT SE 13.9 G 21.9 10.00 Partly Cloudy -- 66.2 59.0 78% NA NA 29.68 1004.8
06:55 PM CDT SE 16.1 10.00 Partly Cloudy -- 68.0 59.0 73% NA NA 29.68 1005.1
06:35 PM CDT SE 11.4 G 19.7 10.00 Mostly Clear -- 68.0 59.0 73% NA NA 29.68 1005.1
06:15 PM CDT SE 9.2 10.00 Clear -- 68.0 59.0 73% NA NA 29.67 1004.7
05:35 PM CDT 10.00 Light Rain -- NULL % NA NA M
05:15 PM CDT 6.9 G 16.1 4.00 Light Rain -- 66.2 59.0 78% NA NA 29.70 1005.8

Regional Weather Observation

ATLANTIC (KAIO)

Mostly Cloudy
59.0 F

HARLAN MUNI (KHNR)

Cloudy
60.8 F

RED OAK (KRDK)

Fog/Mist
57.2 F

COUNCIL BLUFFS (KCBF)

Cloudy
60.8 F

OMAHA/EPPLEY (KOMA)

Cloudy
62.6 F

OFFUTT AFB/BELLE (KOFF)

Mostly Cloudy
61.5 F
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