Plainfield, WI Weather Forecast
Local 7-day forecast
Areas Of Smoke
Track current conditions, temperature changes, wind, and the full daily outlook for Plainfield, WI in one place.
Areas of smoke and a chance of showers and thunderstorms before 4pm, then a slight chance of showers and thunderstorms between 4pm and 5pm. Mostly sunny, with a high near 90. Heat index values as high as 95. South southwest wind 2 to 8 mph. Chance of precipitation is 30%.
Local Weather Overview
This forecast page for Plainfield, 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 16, 2026 1:22 PM CDT.
The active forecast window currently covers Jul 17 to Jul 22, 2026 for Plainfield, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 17 to Jul 22, 2026
- Latest sync
- Jul 16, 2026 1:22 PM CDT
- Forecast office
- GRB
- Source
- NOAA / NWS
Daily Outlook
This Week in Plainfield
Friday looks like the warmest upcoming period in Plainfield at 90 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 55 degrees F.
The strongest winds are forecast for Tuesday at about 9 to 15 mph NW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 16, 2026 1:22 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
Mostly clear, with a low around 70. Heat index values as high as 93. West southwest wind around 8 mph, with gusts as high as 18 mph.
Sunny, with a high near 85. North northwest wind 7 to 12 mph, with gusts as high as 20 mph.
Mostly clear, with a low around 59.
Sunny, with a high near 84.
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 64. Chance of precipitation is 30%.
Showers and thunderstorms likely. Mostly sunny, with a high near 86. Chance of precipitation is 60%.
Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms between 7pm and 1am. Mostly clear, with a low around 64. Chance of precipitation is 60%.
Sunny, with a high near 79.
Mostly clear, with a low around 55.
Sunny, with a high near 77.
Mostly clear, with a low around 55.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Jul 17
|
Areas Of Smoke
|
90°F |
2 to 8 mph
SSW
|
|
Friday Night
Jul 17
|
Mostly Clear
|
70°F |
8 mph
WSW
|
|
Saturday
Jul 18
|
Sunny
|
85°F |
7 to 12 mph
NNW
|
|
Saturday Night
Jul 18
|
Mostly Clear
|
59°F |
0 to 8 mph
NE
|
|
Sunday
Jul 19
|
Sunny
|
84°F |
0 to 5 mph
SSE
|
|
Sunday Night
Jul 19
|
Partly Cloudy then Chance Showers And Thunderstorms
|
64°F |
3 to 7 mph
S
|
|
Monday
Jul 20
|
Showers And Thunderstorms Likely
|
86°F |
7 to 14 mph
WSW
|
|
Monday Night
Jul 20
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
64°F |
7 to 10 mph
WNW
|
|
Tuesday
Jul 21
|
Sunny
|
79°F |
9 to 15 mph
NW
|
|
Tuesday Night
Jul 21
|
Mostly Clear
|
55°F |
3 to 13 mph
NNW
|
|
Wednesday
Jul 22
|
Sunny
|
77°F |
3 to 8 mph
NW
|
|
Wednesday Night
Jul 22
|
Mostly Clear
|
55°F |
1 to 5 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Plainfield.