Mechanicsburg, IL Weather Forecast
Local 7-day forecast
Showers And Thunderstorms Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Mechanicsburg, IL in one place.
Showers and thunderstorms likely. Mostly cloudy, with a high near 78. Chance of precipitation is 70%.
Local Weather Overview
This forecast page for Mechanicsburg, 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: Apr 11, 2026 10:54 PM CDT.
The active forecast window currently covers Apr 15 to Apr 18, 2026 for Mechanicsburg, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 15 to Apr 18, 2026
- Latest sync
- Apr 11, 2026 10:54 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Mechanicsburg
Friday looks like the warmest upcoming period in Mechanicsburg at 83 degrees F.
Friday Night is the coolest period ahead with temperatures near 53 degrees F.
The strongest winds are forecast for Wednesday at about 14 to 17 mph SSW.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 11, 2026 10:54 PM CDT
- Coverage
- 4 days
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KILX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms likely. Mostly cloudy, with a low around 61. Chance of precipitation is 70%.
Showers and thunderstorms likely. Partly sunny, with a high near 80.
A chance of showers and thunderstorms. Mostly clear, with a low around 59.
A slight chance of rain showers before 7am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 83.
Showers and thunderstorms likely. Mostly cloudy, with a low around 53.
Showers and thunderstorms likely. Partly sunny, with a high near 66.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Apr 15
|
Showers And Thunderstorms Likely
|
78°F |
14 to 17 mph
SSW
|
|
Wednesday Night
Apr 15
|
Showers And Thunderstorms Likely
|
61°F |
9 to 14 mph
SW
|
|
Thursday
Apr 16
|
Showers And Thunderstorms Likely
|
80°F |
12 mph
SW
|
|
Thursday Night
Apr 16
|
Chance Showers And Thunderstorms
|
59°F |
8 mph
SSW
|
|
Friday
Apr 17
|
Chance Showers And Thunderstorms
|
83°F |
8 to 17 mph
S
|
|
Friday Night
Apr 17
|
Showers And Thunderstorms Likely
|
53°F |
15 mph
SW
|
|
Saturday
Apr 18
|
Showers And Thunderstorms Likely
|
66°F |
14 to 17 mph
WNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Mechanicsburg.