Clear Lake, IA Weather Forecast & Alerts

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

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Current Conditions — Clear Lake, IA

FOREST CITY (KFXY)

Clear

73.4 F
Humidity:50%
Wind Speed: 17.2 mph
Barometer:29.76 in
Dewpoint:53.6 F
Visibility:10.00 mi
Precip:--
Heat Index:72.9 F
Wind Chill:NA
Apr 22 2026, 07:55 PM CDT
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5-Day Forecast — Clear Lake, IA

Wednesday

High 82 °F
Forecast Missing
Wednesday
Night
Low 59 °F
Mostly Cloudy
Thursday

High 68 °F
T-storms Likely
Thursday
Night
Low 46 °F
T-storms
Friday

High 62 °F
Partly Sunny
Friday
Night
Low 39 °F
Partly Cloudy
Saturday

High 62 °F
Mostly Cloudy
Saturday
Night
Low 46 °F
Mostly Cloudy
Sunday

High 64 °F
Chance of Rain Showers

Detailed Forecast — Clear Lake, IA

Wednesday
Mostly Cloudy. High near 82°F. Wind around 18 mph, with gusts as high as 26 mph.
Wednesday Night
Mostly Cloudy. Low around 59°F. Wind 16 to 17 mph, with gusts as high as 28 mph.
Thursday
Thunderstorms Likely. High near 68°F. Wind 16 to 22 mph, with gusts as high as 33 mph.
Thursday Night
Thunderstorms. Low around 46°F. Wind 10 to 14 mph, with gusts as high as 23 mph.
Friday
Partly Sunny. High near 62°F. Wind 12 to 15 mph, with gusts as high as 21 mph.
Friday Night
Partly Cloudy. Low around 39°F. Wind 7 to 8 mph, with gusts as high as 13 mph.
Saturday
Mostly Cloudy. High near 62°F. Wind 6 to 10 mph, with gusts as high as 14 mph.
Saturday Night
Mostly Cloudy. Low around 46°F. Wind around 5 mph, with gusts as high as 8 mph.
Sunday
Chance of Rain Showers. High near 64°F. Wind 16 to 21 mph, with gusts as high as 28 mph.
Sunday Night
Thunderstorms. Low around 48°F. Wind around 26 mph, with gusts as high as 30 mph.
Monday
Thunderstorms Likely. High near 60°F. Wind 21 to 28 mph, with gusts as high as 31 mph.
Monday Night
Chance of Showers. Low around 39°F. Wind around 23 mph, with gusts as high as 28 mph.
Tuesday
Mostly Cloudy. High near 59°F. Wind 13 to 17 mph, with gusts as high as 23 mph.
Tuesday Night
Partly Cloudy. Low around 39°F. Wind around 5 mph, with gusts as high as 8 mph.
IA Radar
Current Radar • IA
Day 1 Outlook • April 23, 2026

Observation History — Clear Lake, 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)
07:55 PM CDT 17.2 10.00 Clear -- 73.4 53.6 50% NA 72.9 29.76 1007.8
07:35 PM CDT S 18.3 G 24.2 10.00 Clear -- NULL 55.4 % NA NA 29.75 1007.5
07:15 PM CDT S 18.3 G 25.3 10.00 Clear -- 77.0 53.6 44% NA 76.5 29.75 1007.5
06:55 PM CDT 19.7 G 26.4 10.00 Clear and Windy -- 77.0 53.6 44% NA 76.5 29.75 1007.5
06:35 PM CDT G 26.4 10.00 Clear -- 78.8 53.6 42% NA 78.3 29.75 1007.5
05:55 PM CDT S 21.9 G 30.0 10.00 Clear and Windy -- 80.6 53.6 39% NA 80.2 29.76 1007.8
05:35 PM CDT S 19.7 G 28.9 10.00 Clear and Windy -- 80.6 53.6 39% NA 80.2 29.76 1007.8
05:15 PM CDT S 23.0 G 27.7 10.00 Clear and Windy -- 80.6 55.4 42% NA 80.6 29.76 1007.8
04:55 PM CDT G 31.1 10.00 Clear -- 80.6 55.4 42% NA 80.6 29.76 1007.8
04:35 PM CDT 10.00 Clear -- 80.6 55.4 42% NA 80.6 29.77 1008.1
04:15 PM CDT 21.9 G 28.9 10.00 Clear and Windy -- 80.6 55.4 42% NA 80.6 29.78 1008.5
03:55 PM CDT 23.0 G 30.0 10.00 Clear and Windy -- 82.4 55.4 40% NA 81.7 29.79 1008.8
03:35 PM CDT S 23.0 G 30.0 10.00 Clear and Windy -- 82.4 55.4 40% NA 81.7 29.81 1009.2
03:15 PM CDT 20.8 10.00 Windy -- 80.6 55.4 42% NA 80.6 29.81 1009.5
02:55 PM CDT 20.8 G 28.9 10.00 Clear and Windy -- 80.6 57.2 45% NA 80.8 29.82 1009.8
02:35 PM CDT 13.9 G 23.0 10.00 Clear -- 78.8 59.0 51% NA 78.8 29.83 1010.2
02:15 PM CDT 17.2 G 23.0 10.00 Clear -- 78.8 59.0 51% NA 78.8 29.84 1010.5
01:55 PM CDT 16.1 G 24.2 10.00 Clear -- 78.8 55.4 45% NA 78.4 29.84 1010.5
01:35 PM CDT S 17.2 10.00 Clear -- 78.8 55.4 45% NA 78.4 29.85 1010.8
12:55 PM CDT SE 16.1 G 20.8 10.00 Clear -- 77.0 55.4 47% NA 76.6 29.84 1010.5
12:35 PM CDT 12.8 G 17.2 10.00 Clear -- 77.0 55.4 47% NA 76.6 29.84 1010.5
12:15 PM CDT SE 10.3 10.00 Clear -- 77.0 55.4 47% NA 76.6 29.85 1010.8
11:55 AM CDT SE 10.3 G 17.2 10.00 Clear -- 75.2 57.2 54% NA 75.0 29.86 1011.2
11:35 AM CDT 10.3 10.00 Partly Cloudy -- 71.6 59.0 65% NA 71.4 29.87 1011.5

Regional Weather Observation

FOREST CITY (KFXY)

Clear
73.4 F

MASON CITY (KMCW)

Clear
73.4 F

ALBERT LEA (KAEL)

Clear
77.9 F

ALGONA (KAXA)

Clear and Windy
75.2 F

AUSTIN MUNI (KAUM)

Clear
76.3 F

CLARION (KCAV)

Clear and Windy
75.2 F
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