Winchester, WI Weather Forecast
Local 7-day forecast
Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Winchester, WI in one place.
Patchy fog before 8am, then a chance of rain showers between 10am and 1pm, then showers and thunderstorms. Some of the storms could be severe and produce heavy rain. Partly sunny. High near 81, with temperatures falling to around 75 in the afternoon. Heat index values as high as 79. South wind 6 to 12 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Local Weather Overview
This forecast page for Winchester, 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: Jun 10, 2026 12:58 PM CDT.
The active forecast window currently covers Jun 11 to Jun 16, 2026 for Winchester, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 11 to Jun 16, 2026
- Latest sync
- Jun 10, 2026 12:58 PM CDT
- Forecast office
- GRB
- Source
- NOAA / NWS
Daily Outlook
This Week in Winchester
Thursday looks like the warmest upcoming period in Winchester at 81 degrees F.
Sunday Night is the coolest period ahead with temperatures near 53 degrees F.
The strongest winds are forecast for Friday at about 10 to 18 mph W.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 10, 2026 12:58 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- GRB
- Radar station
- KGRB
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms before 1am. Some of the storms could be severe and produce heavy rain. Partly cloudy, with a low around 57. West southwest wind around 13 mph, with gusts as high as 24 mph. Chance of precipitation is 80%.
Sunny, with a high near 78. West wind 10 to 18 mph, with gusts as high as 30 mph.
Mostly clear, with a low around 60.
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 55. Chance of precipitation is 50%.
A slight chance of rain showers before 7am. Mostly sunny, with a high near 71. Chance of precipitation is 20%.
A slight chance of rain showers after 1am. Partly cloudy, with a low around 53. Chance of precipitation is 20%.
A slight chance of rain showers. Mostly sunny, with a high near 72. Chance of precipitation is 20%.
A slight chance of rain showers before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a slight chance of showers and thunderstorms. Partly cloudy, with a low around 54. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 73. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 54. Chance of precipitation is 40%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Jun 11
|
Showers And Thunderstorms
|
81°F |
6 to 12 mph
S
|
|
Thursday Night
Jun 11
|
Showers And Thunderstorms
|
57°F |
13 mph
WSW
|
|
Friday
Jun 12
|
Sunny
|
78°F |
10 to 18 mph
W
|
|
Friday Night
Jun 12
|
Mostly Clear
|
60°F |
7 to 14 mph
WSW
|
|
Saturday
Jun 13
|
Mostly Sunny then Chance Showers And Thunderstorms
|
81°F |
9 to 16 mph
WSW
|
|
Saturday Night
Jun 13
|
Chance Showers And Thunderstorms
|
55°F |
6 to 12 mph
WNW
|
|
Sunday
Jun 14
|
Slight Chance Rain Showers then Mostly Sunny
|
71°F |
8 to 13 mph
NW
|
|
Sunday Night
Jun 14
|
Partly Cloudy then Slight Chance Rain Showers
|
53°F |
3 to 10 mph
WNW
|
|
Monday
Jun 15
|
Slight Chance Rain Showers
|
72°F |
5 to 8 mph
WNW
|
|
Monday Night
Jun 15
|
Chance Showers And Thunderstorms
|
54°F |
3 to 7 mph
W
|
|
Tuesday
Jun 16
|
Slight Chance Showers And Thunderstorms
|
73°F |
5 to 8 mph
W
|
|
Tuesday Night
Jun 16
|
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
|
54°F |
3 to 7 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Winchester.