Mount Vernon, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Mount Vernon, IL in one place.
Sunny, with a high near 89. Northeast wind 2 to 8 mph.
Local Weather Overview
This forecast page for Mount Vernon, 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 12, 2026 1:46 AM CDT.
The active forecast window currently covers Jul 14 to Jul 18, 2026 for Mount Vernon, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 14 to Jul 18, 2026
- Latest sync
- Jul 12, 2026 1:46 AM CDT
- Forecast office
- PAH
- Source
- NOAA / NWS
Daily Outlook
This Week in Mount Vernon
Friday looks like the warmest upcoming period in Mount Vernon at 93 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 70 degrees F.
The strongest winds are forecast for Tuesday at about 2 to 8 mph NE.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 12, 2026 1:46 AM CDT
- Coverage
- 5 days
- Time zone
- America/Chicago
- Forecast office
- PAH
- Radar station
- KVWX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 70. Northeast wind 0 to 5 mph.
Sunny, with a high near 90. East southeast wind around 2 mph.
Mostly clear, with a low around 72. East wind around 1 mph.
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 91. West wind 0 to 3 mph.
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 73. West northwest wind around 2 mph.
Sunny, with a high near 93. West wind 1 to 5 mph.
Mostly clear, with a low around 74. Southwest wind around 3 mph.
Sunny, with a high near 93. Southwest wind 2 to 6 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jul 14
|
Sunny
|
89°F |
2 to 8 mph
NE
|
|
Tuesday Night
Jul 14
|
Mostly Clear
|
70°F |
0 to 5 mph
NE
|
|
Wednesday
Jul 15
|
Sunny
|
90°F |
2 mph
ESE
|
|
Wednesday Night
Jul 15
|
Mostly Clear
|
72°F |
1 mph
E
|
|
Thursday
Jul 16
|
Sunny then Slight Chance Showers And Thunderstorms
|
91°F |
0 to 3 mph
W
|
|
Thursday Night
Jul 16
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
73°F |
2 mph
WNW
|
|
Friday
Jul 17
|
Sunny
|
93°F |
1 to 5 mph
W
|
|
Friday Night
Jul 17
|
Mostly Clear
|
74°F |
3 mph
SW
|
|
Saturday
Jul 18
|
Sunny
|
93°F |
2 to 6 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Mount Vernon.
