Johnson, WI Weather Forecast
Local 7-day forecast
Chance Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Johnson, WI in one place.
A chance of rain showers after 7am. Mostly sunny, with a high near 73. Chance of precipitation is 30%.
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: Apr 18, 2026 11:57 PM CDT.
The active forecast window currently covers Apr 23 to Apr 25, 2026 for Johnson, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 23 to Apr 25, 2026
- Latest sync
- Apr 18, 2026 11:57 PM CDT
- Forecast office
- GRB
- Source
- NOAA / NWS
Daily Outlook
This Week in Johnson
Thursday looks like the warmest upcoming period in Johnson at 73 degrees F.
Friday Night is the coolest period ahead with temperatures near 38 degrees F.
The strongest winds are forecast for Thursday at about 9 to 16 mph SSE.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 18, 2026 11:57 PM CDT
- Coverage
- 3 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
A chance of rain showers before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 54. Chance of precipitation is 70%.
Rain showers likely before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 64. Chance of precipitation is 70%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 38. Chance of precipitation is 50%.
A chance of rain showers. Partly sunny, with a high near 55. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Apr 23
|
Chance Rain Showers
|
73°F |
9 to 16 mph
SSE
|
|
Thursday Night
Apr 23
|
Showers And Thunderstorms Likely
|
54°F |
12 to 15 mph
S
|
|
Friday
Apr 24
|
Rain Showers Likely
|
64°F |
10 to 14 mph
SSW
|
|
Friday Night
Apr 24
|
Chance Showers And Thunderstorms
|
38°F |
13 mph
WNW
|
|
Saturday
Apr 25
|
Chance Rain Showers
|
55°F |
10 to 14 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Johnson.