Sussex, WI Weather Forecast
Local 7-day forecast
Smoke then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Sussex, WI in one place.
Smoke before noon, then a slight chance of rain showers between noon and 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 89. Southwest wind 0 to 10 mph. Chance of precipitation is 30%.
Local Weather Overview
This forecast page for Sussex, WI is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 17, 2026 9:54 AM CDT.
The active forecast window currently covers Jul 17 to Jul 23, 2026 for Sussex, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 17 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 9:54 AM CDT
- Forecast office
- MKX
- Source
- NOAA / NWS
Daily Outlook
This Week in Sussex
Today looks like the warmest upcoming period in Sussex at 89 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 57 degrees F.
The strongest winds are forecast for Saturday at about 10 to 15 mph NW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 17, 2026 9:54 AM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- MKX
- Radar station
- KMKX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 72. Southwest wind 5 to 10 mph.
Mostly sunny, with a high near 87. Northwest wind 10 to 15 mph.
Mostly clear, with a low around 61. Northeast wind 0 to 10 mph.
Sunny, with a high near 83. East wind 0 to 5 mph.
Partly cloudy, with a low around 64. South wind around 5 mph.
A chance of rain showers between 7am and 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 86. Southwest wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Partly cloudy, with a low around 68. West wind 10 to 15 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of showers and thunderstorms before 7am. Sunny, with a high near 81. Chance of precipitation is 30%.
Mostly clear, with a low around 58.
Sunny, with a high near 77.
Mostly clear, with a low around 57.
Sunny, with a high near 79.
Partly cloudy, with a low around 59.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Jul 17
|
Smoke then Chance Showers And Thunderstorms
|
89°F |
0 to 10 mph
SW
|
|
Tonight
Jul 17
|
Partly Cloudy
|
72°F |
5 to 10 mph
SW
|
|
Saturday
Jul 18
|
Mostly Sunny
|
87°F |
10 to 15 mph
NW
|
|
Saturday Night
Jul 18
|
Mostly Clear
|
61°F |
0 to 10 mph
NE
|
|
Sunday
Jul 19
|
Sunny
|
83°F |
0 to 5 mph
E
|
|
Sunday Night
Jul 19
|
Partly Cloudy
|
64°F |
5 mph
S
|
|
Monday
Jul 20
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
86°F |
5 to 15 mph
SW
|
|
Monday Night
Jul 20
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
68°F |
10 to 15 mph
W
|
|
Tuesday
Jul 21
|
Chance Showers And Thunderstorms then Sunny
|
81°F |
10 to 15 mph
NW
|
|
Tuesday Night
Jul 21
|
Mostly Clear
|
58°F |
5 to 15 mph
N
|
|
Wednesday
Jul 22
|
Sunny
|
77°F |
5 to 10 mph
NW
|
|
Wednesday Night
Jul 22
|
Mostly Clear
|
57°F |
0 to 5 mph
W
|
|
Thursday
Jul 23
|
Sunny
|
79°F |
0 to 5 mph
W
|
|
Thursday Night
Jul 23
|
Partly Cloudy
|
59°F |
0 to 5 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Sussex.