Plainville, IL Weather Forecast
Local 7-day forecast
Chance Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Plainville, IL in one place.
A chance of rain showers. Cloudy, with a high near 74. Southeast wind 3 to 7 mph. Chance of precipitation is 60%.
Local Weather Overview
This forecast page for Plainville, 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 23, 2026 10:05 PM CDT.
The active forecast window currently covers Jul 24 to Jul 30, 2026 for Plainville, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 24 to Jul 30, 2026
- Latest sync
- Jul 23, 2026 10:05 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Plainville
Monday looks like the warmest upcoming period in Plainville at 95 degrees F.
Friday Night is the coolest period ahead with temperatures near 66 degrees F.
The strongest winds are forecast for Monday at about 7 to 10 mph SW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 23, 2026 10:05 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KLSX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Scattered rain showers. Mostly cloudy, with a low around 66. Southeast wind around 7 mph. Chance of precipitation is 50%.
Scattered rain showers before 10am. Partly sunny, with a high near 88. Heat index values as high as 102. South wind around 5 mph. Chance of precipitation is 50%.
Mostly clear, with a low around 72. South wind around 2 mph.
Sunny, with a high near 92.
Mostly clear, with a low around 76.
Sunny, with a high near 95.
Mostly clear, with a low around 75.
Sunny, with a high near 93.
Partly cloudy, with a low around 72.
A slight chance of rain showers between 7am and 1pm. Mostly sunny, with a high near 90. Chance of precipitation is 20%.
Partly cloudy, with a low around 70.
Mostly sunny, with a high near 89.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Jul 24
|
Chance Rain Showers
|
74°F |
3 to 7 mph
SE
|
|
Friday Night
Jul 24
|
Scattered Rain Showers
|
66°F |
7 mph
SE
|
|
Saturday
Jul 25
|
Scattered Rain Showers then Partly Sunny
|
88°F |
5 mph
S
|
|
Saturday Night
Jul 25
|
Mostly Clear
|
72°F |
2 mph
S
|
|
Sunday
Jul 26
|
Sunny
|
92°F |
3 mph
S
|
|
Sunday Night
Jul 26
|
Mostly Clear
|
76°F |
6 mph
S
|
|
Monday
Jul 27
|
Sunny
|
95°F |
7 to 10 mph
SW
|
|
Monday Night
Jul 27
|
Mostly Clear
|
75°F |
3 to 7 mph
W
|
|
Tuesday
Jul 28
|
Sunny
|
93°F |
6 mph
N
|
|
Tuesday Night
Jul 28
|
Partly Cloudy
|
72°F |
5 mph
NE
|
|
Wednesday
Jul 29
|
Slight Chance Rain Showers
|
90°F |
5 mph
SE
|
|
Wednesday Night
Jul 29
|
Partly Cloudy
|
70°F |
5 mph
SE
|
|
Thursday
Jul 30
|
Mostly Sunny
|
89°F |
5 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Plainville.