Mount Vernon, IL Weather Forecast
Local 7-day forecast
Partly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Mount Vernon, IL in one place.
Partly sunny, with a high near 81. East northeast wind 2 to 6 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: May 28, 2026 12:05 AM CDT.
The active forecast window currently covers May 30 to Jun 3, 2026 for Mount Vernon, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 30 to Jun 3, 2026
- Latest sync
- May 28, 2026 12:05 AM CDT
- Forecast office
- PAH
- Source
- NOAA / NWS
Daily Outlook
This Week in Mount Vernon
Monday looks like the warmest upcoming period in Mount Vernon at 82 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 58 degrees F.
The strongest winds are forecast for Tuesday at about 3 to 10 mph NE.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- May 28, 2026 12:05 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
Partly cloudy, with a low around 61. East northeast wind 2 to 6 mph.
Mostly sunny, with a high near 80. East northeast wind around 6 mph.
Partly cloudy, with a low around 61. East northeast wind 0 to 3 mph.
A slight chance of rain showers after 1pm. Mostly sunny, with a high near 82. Northeast wind 1 to 7 mph.
A slight chance of rain showers before 7pm. Mostly clear, with a low around 60. North northeast wind 1 to 6 mph.
Sunny, with a high near 81. Northeast wind 3 to 10 mph.
Mostly clear, with a low around 58. Northeast wind 2 to 8 mph.
Sunny, with a high near 81. Northeast wind 2 to 6 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
May 30
|
Partly Sunny
|
81°F |
2 to 6 mph
ENE
|
|
Saturday Night
May 30
|
Partly Cloudy
|
61°F |
2 to 6 mph
ENE
|
|
Sunday
May 31
|
Mostly Sunny
|
80°F |
6 mph
ENE
|
|
Sunday Night
May 31
|
Partly Cloudy
|
61°F |
0 to 3 mph
ENE
|
|
Monday
Jun 1
|
Mostly Sunny then Slight Chance Rain Showers
|
82°F |
1 to 7 mph
NE
|
|
Monday Night
Jun 1
|
Slight Chance Rain Showers then Mostly Clear
|
60°F |
1 to 6 mph
NNE
|
|
Tuesday
Jun 2
|
Sunny
|
81°F |
3 to 10 mph
NE
|
|
Tuesday Night
Jun 2
|
Mostly Clear
|
58°F |
2 to 8 mph
NE
|
|
Wednesday
Jun 3
|
Sunny
|
81°F |
2 to 6 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Mount Vernon.
