Jefferson, WI Weather Forecast & Current Conditions

Feedback E-mail the Weather

Quick Clicks

Weather World

Jefferson, WI Weather Maps

°F °C°F °C
Jefferson Weather Map
UTC Time: 9/14/2026, 03:47
Your Time:

Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Jefferson, WI Regional Weather

Expires:202609140400;;415280
ASUS43 KMKX 140320
RWRWI 

WISCONSIN REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1000 PM CDT SUN SEP 13 2026

NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY.


WIZ051-052-058>065-066-070>072-140400-
SOUTHEAST WISCONSIN
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
MILWAUKEE      CLEAR     59  48  67 W3        30.16R TC  15           
WAUKESHA       CLEAR     54  48  82 NW2       30.17R TC  12           
MILWAUKEE/TIMM CLEAR     54  46  76 CALM      30.19R TC  12           
RACINE         CLEAR     56  50  80 W5        30.19R TC  13           
KENOSHA        CLEAR     52  51  97 CALM      30.18R TC  11           
FOND DU LAC    CLEAR     50  44  80 W3        30.18R TC  10           
SHEBOYGAN      CLEAR     49  45  86 W6        30.16R TC   9           
WEST BEND      CLEAR     50  46  87 CALM      30.18R TC  10           
JUNEAU         CLEAR     52  46  77 CALM      30.18S TC  11           
$$


SKY/WX - Weather  TMP - Temperature  DP - Dew Point  RH - Humidity
WIND - Wind Direction/Speed PRES - Barometric Pressure VSB - Visibility
WCI - Wind Chill Index E13G22 Wind - East Wind 13 mph/Gusts of 22 mph

Jefferson, WI

Early Evening
Rain Showers
72°/ 48° 22°/
50%
Monday
Sunny
72°/ 58° 22°/ 14°
20%
Tuesday
Thunderstorms
80°/ 58° 27°/ 14°
70%
Wednesday
Rain Showers
75°/ 62° 24°/ 17°
70%
Thursday
Thunderstorms
75°/ 58° 24°/ 14°
50%
Friday
Rain Showers
75°/ 58° 24°/ 14°
40%
Saturday
Rain Showers
75°/ 55° 24°/ 13°
50%

Day: Mostly cloudy with a 50 percent chance of showers. Highs in the lower 70s. Northwest winds 10 to 15 mph with gusts to around 30 mph.

Night: Mostly clear. A 40 percent chance of rain showers in the evening. Lows in the upper 40s. Northwest winds around 10 mph with gusts to around 25 mph in the evening becoming light.

Madison, WI

Tonight
Clear
42°
0%
Monday
Rain Showers
72°/ 62° 22°/ 17°
90%
Tuesday
Rain Showers
75°/ 55° 24°/ 13°
80%
Wednesday
Thunderstorms
70°/ 60° 21°/ 16°
70%
Thursday
Rain Showers
75°/ 58° 24°/ 14°
40%
Friday
Thunderstorms
72°/ 58° 22°/ 14°
60%
Saturday
Rain Showers
75°/ 55° 24°/ 13°
60%

Night: Clear. Lows in the lower 40s. West winds up to 5 mph shifting to the northwest after midnight.

Whitewater, WI

Tonight
Clear
45°
0%
Monday
Rain Showers
72°/ 62° 22°/ 17°
80%
Tuesday
Thunderstorms
78°/ 55° 26°/ 13°
80%
Wednesday
Thunderstorms
72°/ 62° 22°/ 17°
70%
Thursday
Thunderstorms
75°/ 58° 24°/ 14°
50%
Friday
Thunderstorms
72°/ 60° 22°/ 16°
50%
Saturday
Rain Showers
75°/ 58° 24°/ 14°
60%

Night: Mostly clear. Lows in the mid 40s. West winds up to 5 mph through around midnight becoming calm.

Waukesha, WI

Tonight
Clear
45°
0%
Monday
Rain Showers
72°/ 62° 22°/ 17°
80%
Tuesday
Thunderstorms
78°/ 55° 26°/ 13°
80%
Wednesday
Thunderstorms
70°/ 60° 21°/ 16°
70%
Thursday
Thunderstorms
72°/ 58° 22°/ 14°
40%
Friday
Thunderstorms
72°/ 58° 22°/ 14°
50%
Saturday
Rain Showers
75°/ 58° 24°/ 14°
50%

Night: Clear. Lows in the mid 40s. Northwest winds up to 5 mph.

Janesville, WI

Tonight
Clear
45°
0%
Monday
Rain Showers
72°/ 65° 22°/ 18°
80%
Tuesday
Thunderstorms
78°/ 55° 26°/ 13°
80%
Wednesday
Thunderstorms
72°/ 62° 22°/ 17°
70%
Thursday
Thunderstorms
75°/ 58° 24°/ 14°
50%
Friday
Thunderstorms
72°/ 58° 22°/ 14°
60%
Saturday
Rain Showers
75°/ 58° 24°/ 14°
60%

Night: Colder. Mostly clear. Lows in the mid 40s. West winds up to 5 mph through around midnight becoming calm.

Beaver Dam, WI

Tonight
Clear
42°
0%
Monday
Rain Showers
70°/ 62° 21°/ 17°
90%
Tuesday
Rain Showers
75°/ 52° 24°/ 11°
80%
Wednesday
Rain Showers
70°/ 58° 21°/ 14°
70%
Thursday
Rain Showers
72°/ 55° 22°/ 13°
40%
Friday
Rain Showers
72°/ 58° 22°/ 14°
60%
Saturday
Rain Showers
75°/ 55° 24°/ 13°
50%

Night: Clear. Lows in the lower 40s. West winds up to 5 mph shifting to the north after midnight.

Portage, WI

Tonight
Clear
42°
0%
Monday
Rain Showers
70°/ 62° 21°/ 17°
90%
Tuesday
Rain Showers
75°/ 52° 24°/ 11°
70%
Wednesday
Thunderstorms
68°/ 58° 20°/ 14°
70%
Thursday
Rain Showers
72°/ 55° 22°/ 13°
40%
Friday
Rain Showers
72°/ 58° 22°/ 14°
60%
Saturday
Rain Showers
72°/ 55° 22°/ 13°
50%

Night: Clear. Lows in the lower 40s. West winds up to 5 mph through around midnight becoming calm.

West Bend, WI

Tonight
Clear
42°
0%
Monday
Rain Showers
70°/ 62° 21°/ 17°
80%
Tuesday
Rain Showers
75°/ 55° 24°/ 13°
80%
Wednesday
Rain Showers
68°/ 58° 20°/ 14°
70%
Thursday
Rain Showers
72°/ 58° 22°/ 14°
40%
Friday
Rain Showers
72°/ 58° 22°/ 14°
50%
Saturday
Rain Showers
75°/ 55° 24°/ 13°
50%

Night: Clear. Lows in the lower 40s. Northwest winds up to 5 mph.

Monroe, WI

Tonight
Clear
45°
0%
Monday
Rain Showers
72°/ 65° 22°/ 18°
80%
Tuesday
Thunderstorms
78°/ 55° 26°/ 13°
80%
Wednesday
Thunderstorms
72°/ 62° 22°/ 17°
70%
Thursday
Rain Showers
75°/ 58° 24°/ 14°
50%
Friday
Thunderstorms
75°/ 60° 24°/ 16°
60%
Saturday
Rain Showers
75°/ 58° 24°/ 14°
60%

Night: Mostly clear. Lows in the mid 40s. West winds up to 5 mph shifting to the north after midnight.

Racine, WI

Tonight
Clear
45°
0%
Monday
Rain Showers
72°/ 62° 22°/ 17°
70%
Tuesday
Thunderstorms
78°/ 58° 26°/ 14°
80%
Wednesday
Thunderstorms
72°/ 62° 22°/ 17°
70%
Thursday
Thunderstorms
75°/ 58° 24°/ 14°
50%
Friday
Thunderstorms
72°/ 60° 22°/ 16°
50%
Saturday
Rain Showers
75°/ 58° 24°/ 14°
60%

Night: Clear. Lows around 50 NEAR THE LAKE AND in the mid 40s INLAND. Northwest winds up to 5 mph.

Rockford, IL

Tonight
Clear
45°
0%
Monday
Rain Showers
75°/ 65° 24°/ 18°
70%
Tuesday
Thunderstorms
78°/ 55° 26°/ 13°
80%
Wednesday
Thunderstorms
72°/ 62° 22°/ 17°
70%
Thursday
Thunderstorms
75°/ 58° 24°/ 14°
50%
Friday
Rain Showers
75°/ 60° 24°/ 16°
50%
Saturday
Rain Showers
78°/ 58° 26°/ 14°
60%

Night: Clear. Patchy fog after midnight. Lows in the mid 40s. West winds around 5 mph late in the evening, becoming light and variable.

Milwaukee, WI

Tonight
Clear
45°
0%
Monday
Rain Showers
70°/ 62° 21°/ 17°
80%
Tuesday
Thunderstorms
78°/ 58° 26°/ 14°
80%
Wednesday
Thunderstorms
72°/ 62° 22°/ 17°
70%
Thursday
Thunderstorms
72°/ 60° 22°/ 16°
40%
Friday
Thunderstorms
72°/ 60° 22°/ 16°
50%
Saturday
Rain Showers
75°/ 58° 24°/ 14°
50%

Night: Clear. Lows around 50 NEAR THE LAKE AND in the mid 40s INLAND. Northwest winds up to 10 mph.

Belvidere, IL

Tonight
Clear
45°
0%
Monday
Rain Showers
75°/ 65° 24°/ 18°
70%
Tuesday
Thunderstorms
80°/ 58° 27°/ 14°
70%
Wednesday
Thunderstorms
72°/ 62° 22°/ 17°
70%
Thursday
Thunderstorms
75°/ 58° 24°/ 14°
50%
Friday
Rain Showers
75°/ 60° 24°/ 16°
50%
Saturday
Rain Showers
78°/ 58° 26°/ 14°
60%

Night: Clear. Patchy fog after midnight. Lows in the mid 40s. Light and variable winds.

Crystal Lake, IL

Tonight
Clear
45°
0%
Monday
Rain Showers
75°/ 65° 24°/ 18°
70%
Tuesday
Thunderstorms
82°/ 58° 28°/ 14°
70%
Wednesday
Thunderstorms
72°/ 65° 22°/ 18°
70%
Thursday
Thunderstorms
75°/ 60° 24°/ 16°
50%
Friday
Rain Showers
75°/ 62° 24°/ 17°
50%
Saturday
Rain Showers
78°/ 58° 26°/ 14°
60%

Night: Clear. Patchy fog after midnight. Lows in the mid 40s. West winds around 5 mph late in the evening, becoming light and variable.

Kenosha, WI

Tonight
Clear
45°
0%
Monday
Rain Showers
72°/ 62° 22°/ 17°
70%
Tuesday
Thunderstorms
80°/ 58° 27°/ 14°
80%
Wednesday
Thunderstorms
72°/ 62° 22°/ 17°
70%
Thursday
Thunderstorms
75°/ 60° 24°/ 16°
50%
Friday
Thunderstorms
72°/ 60° 22°/ 16°
50%
Saturday
Rain Showers
75°/ 58° 24°/ 14°
60%

Night: Clear. Lows in the mid 40s. Northwest winds up to 5 mph.

Mequon, WI

Tonight
Clear
45°
0%
Monday
Rain Showers
68°/ 62° 20°/ 17°
80%
Tuesday
Rain Showers
78°/ 55° 26°/ 13°
80%
Wednesday
Rain Showers
70°/ 58° 21°/ 14°
70%
Thursday
Rain Showers
72°/ 58° 22°/ 14°
40%
Friday
Rain Showers
72°/ 58° 22°/ 14°
50%
Saturday
Rain Showers
75°/ 58° 24°/ 14°
50%

Night: Clear. Lows in the mid 40s. Northwest winds up to 10 mph.

Fond Du Lac, WI

Tonight
Clear
42°
0%
Monday
Rain Showers
70°/ 60° 21°/ 16°
100%
Tuesday
Rain Showers
75°/ 52° 24°/ 11°
70%
Wednesday
Rain Showers
68°/ 58° 20°/ 14°
60%
Thursday
Rain Showers
72°/ 55° 22°/ 13°
30%
Friday
Rain Showers
72°/ 58° 22°/ 14°
50%
Saturday
Rain Showers
72°/ 55° 22°/ 13°
50%

Night: Clear. Lows in the lower 40s. Northwest winds up to 5 mph shifting to the north after midnight.

Baraboo, WI

Tonight
Clear
42°
0%
Monday
Rain Showers
70°/ 62° 21°/ 17°
90%
Tuesday
Rain Showers
75°/ 52° 24°/ 11°
60%
Wednesday
Thunderstorms
68°/ 58° 20°/ 14°
70%
Thursday
Rain Showers
72°/ 55° 22°/ 13°
40%
Friday
Rain Showers
72°/ 58° 22°/ 14°
60%
Saturday
Rain Showers
72°/ 55° 22°/ 13°
50%

Night: Clear. Lows in the lower 40s. West winds up to 5 mph through around midnight becoming calm.

Berlin, WI

Tonight
Clear
42°
0%
Monday
Rain Showers
68°/ 58° 20°/ 14°
100%
Tuesday
Rain Showers
75°/ 52° 24°/ 11°
50%
Wednesday
Rain Showers
68°/ 55° 20°/ 13°
60%
Thursday
Rain Showers
72°/ 55° 22°/ 13°
30%
Friday
Rain Showers
72°/ 55° 22°/ 13°
60%
Saturday
Rain Showers
72°/ 52° 22°/ 11°
50%

Night: Clear. Lows in the lower 40s. Northwest winds up to 5 mph through around midnight becoming calm.

Waukegan, IL

Tonight
Clear
48°
0%
Monday
Rain Showers
75°/ 65° 24°/ 18°
60%
Tuesday
Thunderstorms
82°/ 60° 28°/ 16°
70%
Wednesday
Thunderstorms
72°/ 65° 22°/ 18°
70%
Thursday
Thunderstorms
75°/ 62° 24°/ 17°
50%
Friday
Rain Showers
75°/ 62° 24°/ 17°
50%
Saturday
Rain Showers
78°/ 58° 26°/ 14°
60%

Night: Clear. Lows in the upper 40s. Northwest winds around 5 mph.

Trending Headlines

Trending Entertainment Headlines

Jefferson Radar Loop

Use the map search tool if you want to place a location marker on the radar map...

Jefferson Quick Facts

National Two Day Weather Forecast


E-mail the Jefferson Weather Forecast

Voice your opinion or tell us about page issues...