Avalon, WI Weather Forecast & Alerts

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

Current Conditions — Avalon, WI

JANESVILLE/ROCK (KJVL)

Heavy Rain

57.2 F
Humidity:88%
Wind Speed: 15.0 G 23.0 mph
Barometer:29.75 in
Dewpoint:53.6 F
Visibility:2.00 mi
Precip:--
Heat Index:NA
Wind Chill:NA
Apr 27 2026, 11:35 AM CDT
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5-Day Forecast — Avalon, WI

Monday

High 66 °F
T-storms
Monday
Night
Low 48 °F
T-storms
Tuesday

High 62 °F
Mostly Cloudy
Tuesday
Night
Low 44 °F
Mostly Cloudy
Wednesday

High 57 °F
Mostly Cloudy
Wednesday
Night
Low 39 °F
Mostly Clear
Thursday

High 55 °F
Slight Chance of Rain Showers
Thursday
Night
Low 37 °F
Mostly Cloudy
Friday

High 55 °F
Mostly Cloudy

Detailed Forecast — Avalon, WI

Monday
Thunderstorms. High near 66°F. Wind 16 to 24 mph, with gusts as high as 35 mph.
Monday Night
Thunderstorms. Low around 48°F. Wind 16 to 20 mph, with gusts as high as 29 mph.
Tuesday
Mostly Cloudy. High near 62°F. Wind 7 to 17 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly Cloudy. Low around 44°F. Wind 5 to 6 mph, with gusts as high as 12 mph.
Wednesday
Mostly Cloudy. High near 57°F. Wind 8 to 12 mph, with gusts as high as 18 mph.
Wednesday Night
Mostly Clear. Low around 39°F. Wind around 3 mph, with gusts as high as 8 mph.
Thursday
Slight Chance of Rain Showers. High near 55°F. Wind 7 to 10 mph, with gusts as high as 16 mph.
Thursday Night
Mostly Cloudy. Low around 37°F. Wind around 2 mph, with gusts as high as 8 mph.
Friday
Mostly Cloudy. High near 55°F. Wind 7 to 10 mph, with gusts as high as 16 mph.
Friday Night
Mostly Clear. Low around 35°F. Wind around 1 mph, with gusts as high as 6 mph.
Saturday
Partly Sunny. High near 60°F. Wind 5 to 9 mph, with gusts as high as 14 mph.
Saturday Night
Mostly Clear. Low around 41°F. Wind around 5 mph, with gusts as high as 10 mph.
Sunday
Partly Sunny. High near 68°F. Wind 7 to 12 mph, with gusts as high as 18 mph.
WI Radar
Current Radar • WI
Day 1 Outlook • April 27, 2026

Observation History — Avalon, 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)
11:35 AM CDT 15.0 G 23.0 2.00 Heavy Rain -- 57.2 53.6 88% NA NA 29.75 1007.5
09:45 AM CDT 15.0 G 23.0 10.00 Cloudy -- 57.2 51.8 82% NA NA 29.76 1007.8
08:45 AM CDT SE 15.0 G 25.3 10.00 Cloudy -- 55.4 50.0 82% NA NA 29.81 1009.2
07:45 AM CDT G 23.0 10.00 Cloudy -- 55.4 50.0 82% NA NA 29.81 1009.2
06:45 AM CDT SE 11.4 10.00 Cloudy -- 55.4 50.0 82% NA NA 29.84 1010.5
05:45 AM CDT SE 11.4 10.00 Partly Cloudy -- 53.6 48.2 82% NA NA 29.85 1010.8
05:15 AM CDT SE 11.4 10.00 Partly Cloudy -- 53.6 46.4 77% NA NA 29.86 1011.2
04:55 AM CDT SE 9.2 10.00 Clear -- 51.8 46.4 82% NA NA 29.87 1011.5
04:35 AM CDT SE 8.1 10.00 Clear -- 51.8 46.4 82% NA NA 29.87 1011.5
04:15 AM CDT 10.3 G 19.7 10.00 Clear -- 51.8 46.4 82% NA NA 29.85 1010.8
03:55 AM CDT 10.00 Clear -- 51.8 46.4 82% NA NA M
03:35 AM CDT G 18.3 10.00 Clear -- 51.8 46.4 82% NA NA 29.88 1011.9
03:15 AM CDT SE 12.8 G 23.0 10.00 Clear -- 51.8 46.4 82% NA NA 29.90 1012.5
02:55 AM CDT G 20.8 10.00 Clear -- 50.0 44.6 82% NA NA 29.91 1012.9
02:35 AM CDT 11.4 10.00 Clear -- 50.0 44.6 82% NA NA 29.92 1013.2
02:15 AM CDT 10.3 10.00 Clear -- 50.0 44.6 82% NA NA 29.92 1013.2
01:55 AM CDT 12.8 10.00 Clear -- 50.0 44.6 82% NA NA 29.94 1013.6
01:35 AM CDT 9.2 10.00 Clear -- 50.0 44.6 82% NA NA 29.94 1013.9
01:15 AM CDT 9.2 10.00 Clear -- 50.0 44.6 82% NA NA 29.95 1014.2
12:55 AM CDT 10.00 Partly Cloudy -- 50.0 44.6 82% NA NA 29.96 1014.6
12:35 AM CDT 10.3 10.00 Partly Cloudy -- 51.8 46.4 82% NA NA 29.97 1014.9
12:15 AM CDT 10.3 10.00 Mostly Cloudy -- 51.8 46.4 82% NA NA 29.97 1014.9
11:55 PM CDT 9.2 10.00 Clear -- 53.6 46.4 77% NA NA 29.97 1014.9
11:35 PM CDT 9.2 10.00 Clear -- 53.6 46.4 77% NA NA 29.97 1014.9

Regional Weather Observation

JANESVILLE/ROCK (KJVL)

Heavy Rain
57.2 F

MONROE (KEFT)

Heavy Rain
54.9 F

EAST TROY (K57C)

Cloudy
51.8 F

MADISON (KMSN)

Rain and Fog/Mist
55.4 F

BURLINGTON (KBUU)

Mostly Cloudy
54.0 F

ROCKFORD (KRFD)

Rain and Fog/Mist
55.4 F
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