Trempealeau, WI Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for Trempealeau, WI.

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Current Conditions — Trempealeau, WI

WINONA MUNI (KONA)

Clear

80.6 F
Humidity:26%
Wind Speed: 11.4 mph
Barometer:29.81 in
Dewpoint:42.8 F
Visibility:10.00 mi
Precip:--
Heat Index:79.5 F
Wind Chill:NA
Apr 22 2026, 05:01 PM CDT
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5-Day Forecast — Trempealeau, WI

Wednesday

High 80 °F
Partly Sunny
Wednesday
Night
Low 60 °F
Partly Cloudy
Thursday

High 78 °F
Chance of T-storms
Thursday
Night
Low 53 °F
T-storms
Friday

High 64 °F
Chance of Showers
Friday
Night
Low 41 °F
Mostly Clear
Saturday

High 64 °F
Mostly Cloudy
Saturday
Night
Low 46 °F
Partly Cloudy
Sunday

High 68 °F
Slight Chance of Rain Showers

Detailed Forecast — Trempealeau, WI

Wednesday
Partly Sunny. High near 80°F. Wind 10 to 12 mph, with gusts as high as 20 mph.
Wednesday Night
Partly Cloudy. Low around 60°F. Wind 8 to 10 mph, with gusts as high as 18 mph.
Thursday
Chance of Thunderstorms. High near 78°F. Wind 12 to 18 mph, with gusts as high as 29 mph.
Thursday Night
Thunderstorms. Low around 53°F. Wind 7 to 12 mph, with gusts as high as 22 mph.
Friday
Chance of Showers. High near 64°F. Wind 8 to 10 mph, with gusts as high as 17 mph.
Friday Night
Mostly Clear. Low around 41°F. Wind around 6 mph, with gusts as high as 13 mph.
Saturday
Mostly Cloudy. High near 64°F. Wind 2 to 8 mph, with gusts as high as 14 mph.
Saturday Night
Partly Cloudy. Low around 46°F. Wind around 1 mph, with gusts as high as 5 mph.
Sunday
Slight Chance of Rain Showers. High near 68°F. Wind 9 to 10 mph, with gusts as high as 21 mph.
Sunday Night
Thunderstorms Likely. Low around 50°F. Wind around 14 mph, with gusts as high as 24 mph.
Monday
Thunderstorms. High near 64°F. Wind 15 to 16 mph, with gusts as high as 28 mph.
Monday Night
Chance of Rain. Low around 44°F. Wind around 17 mph, with gusts as high as 25 mph.
Tuesday
Slight Chance of Rain Showers. High near 59°F. Wind 10 to 16 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly Cloudy. Low around 41°F. Wind around 3 mph, with gusts as high as 10 mph.
WI Radar
Current Radar • WI
Day 1 Outlook • April 22, 2026

Observation History — Trempealeau, WI

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)
05:01 PM CDT 11.4 10.00 Clear -- 80.6 42.8 26% NA 79.5 29.81 1009.5
04:42 PM CDT SE 9.2 10.00 Clear -- 80.6 44.6 28% NA 79.7 29.81 1009.5
04:01 PM CDT 6.9 10.00 Clear -- 80.6 42.8 26% NA 79.5 M
03:41 PM CDT SE 11.4 10.00 Clear -- 80.6 42.8 26% NA 79.5 29.84 1010.5
03:24 PM CDT 9.2 10.00 Clear -- 80.6 39.2 23% NA 79.5 29.85 1010.8
03:05 PM CDT SE 10.3 10.00 Clear -- 78.8 41.0 26% NA 77.5 29.85 1010.8
02:47 PM CDT 12.8 10.00 Clear -- 78.8 41.0 26% NA 77.5 29.85 1010.8
02:30 PM CDT SE 11.4 10.00 Clear -- 77.0 41.0 28% NA 75.7 29.85 1010.8
01:53 PM CDT 8.1 10.00 Clear -- 78.8 41.0 26% NA 77.5 29.88 1011.9
01:27 PM CDT S 6.9 NULL Clear -- 77.0 41.0 28% NA 75.7 29.90 1012.5
01:11 PM CDT 8.1 10.00 Clear -- 75.2 42.8 31% NA 73.9 29.90 1012.5
12:44 PM CDT 10.3 10.00 Clear -- 73.4 42.8 33% NA 72.0 29.91 1012.9
12:24 PM CDT E 8.1 10.00 Clear -- 71.6 42.8 35% NA 70.2 29.92 1013.2
12:06 PM CDT 6.9 NULL Clear -- 69.8 42.8 38% NA NA M
11:44 AM CDT E 6.9 10.00 Clear -- 68.0 42.8 40% NA NA M
11:23 AM CDT 8.1 10.00 Clear -- 66.2 42.8 43% NA NA M
11:06 AM CDT 12.8 10.00 NULL -- 64.4 42.8 45% NA NA M
10:45 AM CDT SE 8.1 10.00 Clear -- 64.4 42.8 45% NA NA M
10:14 AM CDT 13.9 10.00 Clear -- 62.6 42.8 48% NA NA 29.92 1013.2
09:52 AM CDT 10.3 10.00 Clear -- 60.8 41.0 48% NA NA 29.95 1014.2
09:20 AM CDT 8.1 10.00 Clear -- 59.0 41.0 51% NA NA 29.95 1014.2
09:00 AM CDT 8.1 10.00 NULL -- 57.2 41.0 55% NA NA 29.96 1014.6
08:40 AM CDT 6.9 10.00 Clear -- 55.4 41.0 58% NA NA 29.97 1014.9
08:21 AM CDT 8.1 10.00 Clear -- 53.6 41.0 62% NA NA M

Regional Weather Observation

WINONA MUNI (KONA)

Clear
80.6 F

EAU CLAIRE (KEAU)

Clear
78.8 F

MENOMONIE MUNI (KLUM)

Clear
NULL F

LA CROSSE (KLSE)

Clear
78.8 F

ST MARY HOSPITAL (K9MN)

Clear
81.1 F

BLACK RIVER FALL (KBCK)

Clear
79.9 F
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