Mechanicsburg, IL Weather Forecast
Local 7-day forecast
Slight Chance Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Mechanicsburg, IL in one place.
A slight chance of rain showers between 4am and 5am. Mostly cloudy. Low around 59, with temperatures rising to around 64 overnight. East wind around 12 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
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: May 31, 2026 5:30 AM CDT.
The active forecast window currently covers May 31 to Jun 6, 2026 for Mechanicsburg, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 31 to Jun 6, 2026
- Latest sync
- May 31, 2026 5:30 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Mechanicsburg
Friday looks like the warmest upcoming period in Mechanicsburg at 86 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 55 degrees F.
The strongest winds are forecast for Friday at about 10 to 14 mph SSW.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- May 31, 2026 5:30 AM CDT
- Coverage
- 7 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
Partly sunny, with a high near 82. Southeast wind 7 to 10 mph, with gusts as high as 18 mph.
A chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 61. East southeast wind 3 to 7 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain showers before 7am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 83. East wind around 7 mph. New rainfall amounts less than a tenth of an inch possible.
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 59. Northeast wind around 8 mph.
Sunny, with a high near 81. East northeast wind 7 to 10 mph.
Clear, with a low around 55. East wind 5 to 9 mph.
Sunny, with a high near 81.
Mostly clear, with a low around 57.
Sunny, with a high near 84.
Mostly clear, with a low around 63.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86.
A slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 66.
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 86.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
May 31
|
Slight Chance Rain Showers
|
59°F |
12 mph
E
|
|
Sunday
May 31
|
Partly Sunny
|
82°F |
7 to 10 mph
SE
|
|
Sunday Night
May 31
|
Partly Cloudy then Chance Showers And Thunderstorms
|
61°F |
3 to 7 mph
ESE
|
|
Monday
Jun 1
|
Slight Chance Showers And Thunderstorms
|
83°F |
7 mph
E
|
|
Monday Night
Jun 1
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
59°F |
8 mph
NE
|
|
Tuesday
Jun 2
|
Sunny
|
81°F |
7 to 10 mph
ENE
|
|
Tuesday Night
Jun 2
|
Clear
|
55°F |
5 to 9 mph
E
|
|
Wednesday
Jun 3
|
Sunny
|
81°F |
7 mph
ESE
|
|
Wednesday Night
Jun 3
|
Mostly Clear
|
57°F |
6 mph
SE
|
|
Thursday
Jun 4
|
Sunny
|
84°F |
6 to 10 mph
S
|
|
Thursday Night
Jun 4
|
Mostly Clear
|
63°F |
7 to 10 mph
S
|
|
Friday
Jun 5
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
86°F |
10 to 14 mph
SSW
|
|
Friday Night
Jun 5
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
66°F |
10 mph
SSW
|
|
Saturday
Jun 6
|
Chance Showers And Thunderstorms
|
86°F |
13 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Mechanicsburg.