Plainfield, IL Weather Forecast
Local 7-day forecast
Mostly Sunny then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Plainfield, IL in one place.
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Heat index values as high as 103. West wind 6 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Plainfield, IL 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 6:53 AM CDT.
The active forecast window currently covers Jul 18 to Jul 23, 2026 for Plainfield, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 18 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 6:53 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Plainfield
Saturday looks like the warmest upcoming period in Plainfield at 91 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 62 degrees F.
The strongest winds are forecast for Saturday at about 6 to 13 mph W.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 17, 2026 6:53 AM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KVWX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms. Partly cloudy, with a low around 71. Northwest wind 2 to 8 mph, with gusts as high as 16 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain showers before 7am. Sunny, with a high near 87. Northeast wind around 6 mph.
Mostly clear, with a low around 67. East wind 1 to 6 mph.
Mostly sunny, with a high near 89.
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73.
A slight chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 90.
Mostly clear, with a low around 66.
Sunny, with a high near 82.
Mostly clear, with a low around 62.
Sunny, with a high near 81.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Jul 18
|
Mostly Sunny then Chance Showers And Thunderstorms
|
91°F |
6 to 13 mph
W
|
|
Saturday Night
Jul 18
|
Chance Showers And Thunderstorms
|
71°F |
2 to 8 mph
NW
|
|
Sunday
Jul 19
|
Slight Chance Rain Showers then Sunny
|
87°F |
6 mph
NE
|
|
Sunday Night
Jul 19
|
Mostly Clear
|
67°F |
1 to 6 mph
E
|
|
Monday
Jul 20
|
Mostly Sunny
|
89°F |
1 to 6 mph
S
|
|
Monday Night
Jul 20
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
73°F |
5 to 9 mph
SSW
|
|
Tuesday
Jul 21
|
Slight Chance Showers And Thunderstorms then Mostly Sunny
|
90°F |
9 to 13 mph
W
|
|
Tuesday Night
Jul 21
|
Mostly Clear
|
66°F |
8 to 13 mph
NNW
|
|
Wednesday
Jul 22
|
Sunny
|
82°F |
10 mph
N
|
|
Wednesday Night
Jul 22
|
Mostly Clear
|
62°F |
3 to 9 mph
NNE
|
|
Thursday
Jul 23
|
Sunny
|
81°F |
6 mph
NE
|
Nearby Forecasts
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