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Day 1 Outlook • April 18, 2026
Day 2 Outlook • April 19, 2026
Day 3 Outlook • April 20, 2026
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dBZ 5
75

Hazardous Weather Conditions

  • No active alerts for JEFFERSON, IOWA

Current Conditions: JEFFERSON, IOWA

CARROLL (KCIN)

Clear

51.8 F
Humidity:17%
Wind Speed: 17.2 G 30.0 mph
Barometer:30.10 in
Dewpoint:8.6 F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:NA
Apr 18 2026, 03:55 PM CDT
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5 Day Forecast for JEFFERSON, IOWA (50129)

Saturday

High 53 °F
Mostly Sunny
Saturday
Night
Low 33 °F
Partly Cloudy
Sunday

High 57 °F
Partly Sunny
Sunday
Night
Low 32 °F
Mostly Clear
Monday

High 68 °F
Mostly Sunny
Monday
Night
Low 51 °F
Partly Cloudy
Tuesday

High 80 °F
Partly Sunny
Tuesday
Night
Low 51 °F
Clear
Wednesday

High 82 °F
Mostly Sunny

Detailed Forecast for JEFFERSON, IOWA (50129)

Saturday
Mostly Sunny. High near 53°F. Wind 17 to 22 mph, with gusts as high as 33 mph.
Saturday Night
Partly Cloudy. Low around 33°F. Wind 6 to 13 mph, with gusts as high as 21 mph.
Sunday
Partly Sunny. High near 57°F. Wind 8 to 14 mph, with gusts as high as 20 mph.
Sunday Night
Mostly Clear. Low around 32°F. Wind 6 to 7 mph, with gusts as high as 10 mph.
Monday
Mostly Sunny. High near 68°F. Wind 12 to 16 mph, with gusts as high as 22 mph.
Monday Night
Partly Cloudy. Low around 51°F. Wind around 12 mph, with gusts as high as 20 mph.
Tuesday
Partly Sunny. High near 80°F. Wind 6 to 8 mph, with gusts as high as 12 mph.
Tuesday Night
Clear. Low around 51°F. Wind around 6 mph, with gusts as high as 9 mph.
Wednesday
Mostly Sunny. High near 82°F. Wind 14 to 15 mph, with gusts as high as 23 mph.
Wednesday Night
Slight Chance of Rain. Low around 59°F. Wind around 15 mph, with gusts as high as 22 mph.
Thursday
Chance of Thunderstorms. High near 78°F. Wind 16 to 20 mph, with gusts as high as 29 mph.
Thursday Night
Thunderstorms Likely. Low around 48°F. Wind around 14 mph, with gusts as high as 20 mph.
Friday
Chance of Thunderstorms. High near 64°F. Wind 15 to 17 mph, with gusts as high as 24 mph.
IA Radar
Current Radar • IA
Day 1 Outlook • April 18, 2026

Observation History for JEFFERSON, 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)
03:55 PM CDT 17.2 G 30.0 10.00 Clear -- 51.8 8.6 17% NA NA 30.10 1019.3
03:15 PM CDT 16.1 G 31.1 10.00 Clear -- 50.0 10.4 20% NA NA 30.12 1019.7
02:55 PM CDT 21.9 G 33.3 10.00 Clear and Windy -- 50.0 8.6 18% NA NA 30.12 1019.7
02:15 PM CDT G 36.9 10.00 Clear -- 48.2 10.4 21% NA NA 30.12 1019.7
01:55 PM CDT 21.9 10.00 Windy -- 48.2 12.2 23% 40.8 NA 30.12 1020.0
01:35 PM CDT NW 27.7 G 40.3 10.00 Clear and Breezy -- 48.2 10.4 21% 39.9 NA 30.12 1020.0
01:15 PM CDT 20.8 G 31.1 10.00 Clear and Windy -- 46.4 12.2 25% 38.7 NA 30.12 1020.0
12:55 PM CDT NW 21.9 G 31.1 10.00 Clear and Windy -- 46.4 14.0 27% 38.5 NA 30.12 1020.0
12:35 PM CDT G 34.4 10.00 Clear -- 44.6 14.0 29% NA NA 30.12 1020.0
11:55 AM CDT NW 21.9 G 31.1 10.00 Clear and Windy -- 42.8 15.8 33% 33.8 NA 30.12 1020.0
11:35 AM CDT NW 25.3 10.00 Clear and Windy -- 42.8 15.8 33% 33.1 NA 30.12 1019.7
11:15 AM CDT NW 23.0 G 32.2 10.00 Clear and Windy -- 41.0 17.6 38% 31.1 NA 30.12 1019.7
10:55 AM CDT 24.2 G 32.2 10.00 Clear and Windy -- 41.0 19.4 42% 30.9 NA 30.10 1019.3
10:35 AM CDT 23.0 G 33.3 10.00 Clear and Windy -- 41.0 19.4 42% 31.1 NA 30.10 1019.3
10:15 AM CDT NW 20.8 G 31.1 10.00 Clear and Windy -- 39.2 19.4 45% 29.3 NA 30.09 1019.0
09:55 AM CDT 26.4 G 34.4 10.00 Clear and Breezy -- 37.4 19.4 48% 25.7 NA 30.09 1019.0
07:55 AM CDT 16.1 G 23.0 10.00 Clear -- 32.0 23.0 69% 21.2 NA 30.06 1018.0
07:35 AM CDT 13.9 10.00 Clear -- 32.0 23.0 69% 22.1 NA 30.06 1018.0
06:55 AM CDT 11.4 10.00 Clear -- 30.2 23.0 74% 20.8 NA 30.04 1017.3
06:35 AM CDT 9.2 10.00 Clear -- 30.2 23.0 74% 21.9 NA 30.03 1016.9
06:15 AM CDT W 9.2 10.00 Clear -- 30.2 23.0 74% 21.9 NA 30.02 1016.6
05:55 AM CDT 11.4 10.00 Clear -- 30.2 21.2 69% 20.8 NA 30.01 1016.3
05:35 AM CDT 13.9 10.00 Clear -- 32.0 23.0 69% 22.1 NA 30.00 1015.9
05:15 AM CDT 13.9 10.00 Clear -- 32.0 23.0 69% 22.1 NA 29.99 1015.6

Regional Weather Observation

CARROLL (KCIN)

Clear
51.8 F

FORT DODGE (KFOD)

Clear
51.8 F

PERRY MUNI (KPRO)

Clear
52.2 F

AUDUBON (KADU)

Cloudy
51.8 F

STORM LAKE (KSLB)

Clear and Breezy
48.2 F

BOONE MUNI (KBNW)

Clear
50.0 F
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