Plum Hill, IL Weather Forecast
Local 7-day forecast
Sunny then Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Plum Hill, IL in one place.
A slight chance of showers and thunderstorms after 5pm. Sunny, with a high near 92. Heat index values as high as 105. West wind 3 to 8 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for Plum Hill, 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 7:58 PM CDT.
The active forecast window currently covers Jul 18 to Jul 23, 2026 for Plum Hill, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 18 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 7:58 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Plum Hill
Tuesday looks like the warmest upcoming period in Plum Hill at 95 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 62 degrees F.
The strongest winds are forecast for Tuesday at about 6 to 10 mph W.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 17, 2026 7:58 PM CDT
- Coverage
- 6 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
A slight chance of showers and thunderstorms between 1am and 2am. Partly cloudy, with a low around 73. Heat index values as high as 103. West wind 1 to 6 mph. Chance of precipitation is 20%.
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. North wind around 2 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 70. Chance of precipitation is 50%.
Sunny, with a high near 93.
Mostly clear, with a low around 75.
Mostly sunny, with a high near 95.
Mostly clear, with a low around 69.
Sunny, with a high near 85.
Partly cloudy, with a low around 62.
Mostly sunny, with a high near 83.
Partly cloudy, with a low around 65.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Jul 18
|
Sunny then Slight Chance Showers And Thunderstorms
|
92°F |
3 to 8 mph
W
|
|
Saturday Night
Jul 18
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
73°F |
1 to 6 mph
W
|
|
Sunday
Jul 19
|
Mostly Sunny then Chance Showers And Thunderstorms
|
90°F |
2 mph
N
|
|
Sunday Night
Jul 19
|
Chance Showers And Thunderstorms then Mostly Clear
|
70°F |
2 mph
E
|
|
Monday
Jul 20
|
Sunny
|
93°F |
2 mph
S
|
|
Monday Night
Jul 20
|
Mostly Clear
|
75°F |
6 mph
S
|
|
Tuesday
Jul 21
|
Mostly Sunny
|
95°F |
6 to 10 mph
W
|
|
Tuesday Night
Jul 21
|
Mostly Clear
|
69°F |
6 to 10 mph
N
|
|
Wednesday
Jul 22
|
Sunny
|
85°F |
6 to 10 mph
N
|
|
Wednesday Night
Jul 22
|
Partly Cloudy
|
62°F |
2 to 9 mph
NE
|
|
Thursday
Jul 23
|
Mostly Sunny
|
83°F |
3 mph
NE
|
|
Thursday Night
Jul 23
|
Partly Cloudy
|
65°F |
3 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Plum Hill.