Plainfield, IL Weather Forecast
Local 7-day forecast
Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Plainfield, IL in one place.
Rain showers before 4pm, then showers and thunderstorms. Cloudy. High near 65, with temperatures falling to around 63 in the afternoon. Southeast wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter 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: Oct 15, 2026 1:38 PM CDT.
The active forecast window currently covers Oct 15 to Oct 21, 2026 for Plainfield, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 15 to Oct 21, 2026
- Latest sync
- Oct 15, 2026 1:38 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Plainfield
Wednesday looks like the warmest upcoming period in Plainfield at 71 degrees F.
Friday Night is the coolest period ahead with temperatures near 35 degrees F.
The strongest winds are forecast for Tonight at about 5 to 20 mph WSW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 15, 2026 1:38 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KLOT
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 before midnight. Cloudy. Low around 47, with temperatures rising to around 49 overnight. West southwest wind 5 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Scattered rain showers after 10am. Mostly cloudy. High near 52, with temperatures falling to around 50 in the afternoon. Northwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Scattered rain showers before 7pm. Mostly clear, with a low around 35. North northwest wind 10 to 15 mph, with gusts as high as 35 mph. Chance of precipitation is 40%.
Areas of frost between 7am and 8am. Sunny, with a high near 56. West wind 5 to 10 mph.
Clear, with a low around 38.
Sunny, with a high near 62.
Mostly clear, with a low around 40.
Mostly sunny, with a high near 69.
Partly cloudy, with a low around 42.
Mostly sunny, with a high near 70.
Mostly clear, with a low around 45.
Mostly sunny, with a high near 71.
Partly cloudy, with a low around 49.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Oct 15
|
Rain Showers
|
65°F |
5 to 10 mph
SE
|
|
Tonight
Oct 15
|
Chance Showers And Thunderstorms then Cloudy
|
47°F |
5 to 20 mph
WSW
|
|
Friday
Oct 16
|
Scattered Rain Showers
|
52°F |
15 to 20 mph
NW
|
|
Friday Night
Oct 16
|
Scattered Rain Showers then Mostly Clear
|
35°F |
10 to 15 mph
NNW
|
|
Saturday
Oct 17
|
Areas Of Frost then Sunny
|
56°F |
5 to 10 mph
W
|
|
Saturday Night
Oct 17
|
Clear
|
38°F |
5 to 10 mph
SSW
|
|
Sunday
Oct 18
|
Sunny
|
62°F |
10 to 15 mph
SSW
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
40°F |
5 to 10 mph
SSW
|
|
Monday
Oct 19
|
Mostly Sunny
|
69°F |
5 mph
SSW
|
|
Monday Night
Oct 19
|
Partly Cloudy
|
42°F |
0 mph
|
|
Tuesday
Oct 20
|
Mostly Sunny
|
70°F |
0 mph
|
|
Tuesday Night
Oct 20
|
Mostly Clear
|
45°F |
0 to 5 mph
ESE
|
|
Wednesday
Oct 21
|
Mostly Sunny
|
71°F |
0 to 5 mph
SSE
|
|
Wednesday Night
Oct 21
|
Partly Cloudy
|
49°F |
5 mph
SSE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Plainfield.