Summit Lake, WI Weather Forecast & Alerts

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

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Current Conditions — Summit Lake, WI

RHINELANDER (KRHI)

Clear

55.4 F
Humidity:38%
Wind Speed:SE 8.1 mph
Barometer:29.90 in
Dewpoint:30.2 F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:NA
Apr 22 2026, 10:35 PM CDT
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5-Day Forecast — Summit Lake, WI

Wednesday

High 68 °F
Mostly Sunny
Wednesday
Night
Low 46 °F
Mostly Cloudy
Thursday

High 77 °F
Mostly Cloudy
Thursday
Night
Low 55 °F
T-storms
Friday

High 64 °F
T-storms Likely
Friday
Night
Low 41 °F
Slight Chance of Showers
Saturday

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

High 62 °F
Partly Sunny

Detailed Forecast — Summit Lake, WI

Wednesday
Mostly Sunny. High near 68°F. Wind around 9 mph, with gusts as high as 17 mph.
Wednesday Night
Mostly Cloudy. Low around 46°F. Wind 7 to 9 mph, with gusts as high as 17 mph.
Thursday
Mostly Cloudy. High near 77°F. Wind 7 to 18 mph, with gusts as high as 30 mph.
Thursday Night
Thunderstorms. Low around 55°F. Wind 7 to 12 mph, with gusts as high as 23 mph.
Friday
Thunderstorms Likely. High near 64°F. Wind 7 to 8 mph, with gusts as high as 17 mph.
Friday Night
Slight Chance of Showers. Low around 41°F. Wind 6 to 7 mph, with gusts as high as 16 mph.
Saturday
Partly Sunny. High near 62°F. Wind 3 to 7 mph, with gusts as high as 17 mph.
Saturday Night
Partly Cloudy. Low around 39°F. Wind around 2 mph, with gusts as high as 8 mph.
Sunday
Partly Sunny. High near 62°F. Wind 6 to 7 mph, with gusts as high as 16 mph.
Sunday Night
Chance of Rain. Low around 44°F. Wind around 8 mph, with gusts as high as 20 mph.
Monday
Thunderstorms Likely. High near 59°F. Wind around 15 mph, with gusts as high as 30 mph.
Monday Night
Rain Likely. Low around 41°F. Wind around 13 mph, with gusts as high as 24 mph.
Tuesday
Chance of Rain Showers. High near 55°F. Wind 12 to 14 mph, with gusts as high as 26 mph.
Tuesday Night
Mostly Cloudy. Low around 37°F. Wind around 6 mph, with gusts as high as 16 mph.
WI Radar
Current Radar • WI
Day 1 Outlook • April 23, 2026

Observation History — Summit Lake, 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)
10:35 PM CDT SE 8.1 10.00 Clear -- 55.4 30.2 38% NA NA 29.90 1012.5
10:20 PM CDT SE 8.1 10.00 Clear -- 57.2 28.4 33% NA NA 29.90 1012.5
10:15 PM CDT SE 8.1 10.00 Clear -- 57.2 28.4 33% NA NA 29.90 1012.5
10:10 PM CDT SE 8.1 10.00 Clear -- 57.2 28.4 33% NA NA 29.90 1012.5
10:05 PM CDT SE 8.1 10.00 Clear -- 57.2 28.4 33% NA NA 29.90 1012.5
09:50 PM CDT SE 10.4 10.00 Clear -- 57.2 28.4 33% NA NA 29.91 1012.9
09:35 PM CDT SE 6.9 10.00 Clear -- 57.2 30.2 36% NA NA 29.91 1012.9
09:20 PM CDT 6.9 10.00 Clear -- 59.0 30.2 33% NA NA 29.91 1012.9
09:15 PM CDT SE 6.9 10.00 Clear -- 59.0 30.2 33% NA NA 29.91 1012.9
09:10 PM CDT SE 8.1 10.00 Clear -- 60.8 30.2 31% NA NA 29.91 1012.9
08:40 PM CDT SE 9.2 10.00 Clear -- 60.8 33.8 36% NA NA 29.91 1012.9
08:30 PM CDT SE 9.2 10.00 Mostly Clear -- 62.6 33.8 34% NA NA 29.91 1012.9
08:15 PM CDT 9.2 10.00 Partly Cloudy -- 62.6 33.8 34% NA NA 29.91 1012.9
08:05 PM CDT 11.5 10.00 Partly Cloudy -- 64.4 33.8 32% NA NA 29.91 1012.9
07:45 PM CDT 8.1 10.00 Clear -- 64.4 33.8 32% NA NA 29.91 1012.9
07:35 PM CDT 10.4 10.00 Clear -- 64.4 33.8 32% NA NA 29.91 1012.9
07:25 PM CDT S 11.5 10.00 Clear -- 66.2 33.8 30% NA NA 29.90 1012.5
07:20 PM CDT 10.4 10.00 Clear -- 66.2 33.8 30% NA NA 29.90 1012.5
07:05 PM CDT 10.4 10.00 Clear -- 66.2 35.6 32% NA NA 29.90 1012.5
07:00 PM CDT S 10.4 10.00 Clear -- 66.2 35.6 32% NA NA 29.90 1012.5
06:40 PM CDT S 10.4 10.00 Clear -- 68.0 33.8 28% NA NA 29.89 1012.2
06:30 PM CDT S 13.8 10.00 Clear -- 69.8 33.8 26% NA NA 29.89 1012.2
06:15 PM CDT S 11.5 10.00 Clear -- 69.8 33.8 26% NA NA 29.89 1012.2
06:05 PM CDT S 9.2 10.00 Clear -- 69.8 33.8 26% NA NA 29.89 1012.2

Regional Weather Observation

RHINELANDER (KRHI)

Clear
55.4 F

TOMAHAWK REGNL (KTKV)

Clear
57.2 F

ANTIGO/LANGLADE (KAIG)

Clear
52.0 F

MINOCQUA/WOODRUF (KARV)

Clear
59.2 F

PHILLIPS/PRICE (KPBH)

Clear
60.4 F

MEDFORD (KMDZ)

Clear
57.6 F
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