Johnson, WI Weather Forecast
Local 7-day forecast
Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Johnson, WI in one place.
A chance of rain showers between 7am and 10am, then showers and thunderstorms. Cloudy. High near 79, with temperatures falling to around 77 in the afternoon. Heat index values as high as 77. East southeast wind around 12 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Local Weather Overview
This forecast page for Johnson, 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 7, 2026 10:00 PM CDT.
The active forecast window currently covers Jun 8 to Jun 14, 2026 for Johnson, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 8 to Jun 14, 2026
- Latest sync
- Jun 7, 2026 10:00 PM CDT
- Forecast office
- GRB
- Source
- NOAA / NWS
Daily Outlook
This Week in Johnson
Wednesday looks like the warmest upcoming period in Johnson at 90 degrees F.
Saturday Night is the coolest period ahead with temperatures near 53 degrees F.
The strongest winds are forecast for Wednesday at about 8 to 17 mph S.
Precipitation is mentioned in 12 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 7, 2026 10:00 PM CDT
- Coverage
- 7 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 9pm, then a chance of showers and thunderstorms between 9pm and 10pm, then a chance of showers and thunderstorms between 10pm and midnight, then a chance of showers and thunderstorms between midnight and 4am. Cloudy. Low around 62, with temperatures rising to around 64 overnight. South southeast wind 2 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Partly sunny, with a high near 85. Heat index values as high as 87. West southwest wind around 5 mph.
A chance of showers and thunderstorms between 1am and 4am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 64. South southeast wind around 7 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 7am, then showers and thunderstorms likely. Partly sunny, with a high near 90. Chance of precipitation is 60%.
Showers and thunderstorms likely before 7pm, then showers and thunderstorms. Partly cloudy, with a low around 64. Chance of precipitation is 80%.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 80. Chance of precipitation is 50%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 55. Chance of precipitation is 50%.
A slight chance of showers and thunderstorms before 7am. Sunny, with a high near 79. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms after 7pm. Mostly clear, with a low around 57. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 80. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 53. Chance of precipitation is 20%.
A slight chance of rain showers before 7am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 73. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
Jun 8
|
Showers And Thunderstorms
|
79°F |
12 mph
ESE
|
|
Monday Night
Jun 8
|
Showers And Thunderstorms
|
62°F |
2 to 10 mph
SSE
|
|
Tuesday
Jun 9
|
Partly Sunny
|
85°F |
5 mph
WSW
|
|
Tuesday Night
Jun 9
|
Partly Cloudy then Chance Showers And Thunderstorms
|
64°F |
7 mph
SSE
|
|
Wednesday
Jun 10
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
90°F |
8 to 17 mph
S
|
|
Wednesday Night
Jun 10
|
Showers And Thunderstorms Likely then Showers And Thunderstorms
|
64°F |
10 to 16 mph
SW
|
|
Thursday
Jun 11
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
80°F |
10 to 16 mph
WSW
|
|
Thursday Night
Jun 11
|
Chance Showers And Thunderstorms
|
55°F |
9 to 15 mph
W
|
|
Friday
Jun 12
|
Slight Chance Showers And Thunderstorms then Sunny
|
79°F |
9 to 16 mph
W
|
|
Friday Night
Jun 12
|
Slight Chance Showers And Thunderstorms
|
57°F |
5 to 13 mph
SW
|
|
Saturday
Jun 13
|
Slight Chance Showers And Thunderstorms
|
80°F |
6 to 12 mph
WSW
|
|
Saturday Night
Jun 13
|
Slight Chance Showers And Thunderstorms
|
53°F |
5 to 10 mph
WNW
|
|
Sunday
Jun 14
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
73°F |
6 to 9 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Johnson.