New York, NY 22° Los Angeles, CA 21° 🌤️ Chicago, IL 🌤️ Houston, TX 🌤️ Miami, FL Phoenix, AZ 39° 🌤️ Seattle, WA Denver, CO 21° Toronto, ON 20° 🌤️ Vancouver, BC
WeatherLiveIllinoisMount Vernon

Mount Vernon, IL Weather (62864)

Current WeatherMount Vernon · 12:40 AM CDT
27° | 21°
23°C
Feels like 23°
Sunny
WindS 8 mph · Gusts 14 mph
Precip82% · 0.84 in
Humidity76% · Dew point 18°
UV index7 High
Air Quality38 Good
Pressure29.94 inHg
Visibility6 mi
Sunrise / Sunset6:13 AM · 7:44 PM · 13h 31m

Weather map — Mount Vernon

Full radar →
Now
23°
7%
6 mph
01:00
23°
8%
8 mph
02:00
22°
7%
7 mph
03:00
22°
8%
6 mph
04:00
22°
19%
6 mph
05:00
22°
0.03 in
4 mph
06:00
22°
0.06 in
6 mph
07:00
22°
0.09 in
5 mph
08:00
23°
0.10 in
13 mph
09:00
23°
0.11 in
4 mph
10:00
24°
0.12 in
6 mph
11:00
27°
0.12 in
9 mph
12:00
21°
0.06 in
7 mph
13:00
21°
0.11 in
10 mph
14:00
24°
41%
8 mph
15:00
25°
33%
9 mph
16:00
27°
11%
8 mph
17:00
27°
21%
7 mph
18:00
25°
7%
7 mph
19:00
24°
16%
10 mph
20:00
23°
10%
9 mph
21:00
23°
15%
8 mph
22:00
22°
31%
7 mph
23:00
21°
46%
6 mph

Today · Wed 8/19

High 27°
82% / 0.84 in

Sunny. Winds NW at 13 mph.

Overnight · Wed 8/19

Low 22°
8% / –

Sunny. Winds S at 8 mph.

Tomorrow · Thu 8/20

29° | 20°
29% / 0.01 in

Sunny. Winds NE at 10 mph.

7-day trend

Mount Vernon · temperature + precipitation

10-day forecast

Updated 12:40 AM

Details & indices

Wind
8 mph S
Gusts 14 mph
Humidity
76%
Dew point 18°
Pressure
29.94 inHg
Rising
UV index
7 — High
High today
Air Quality
Good
AQI 38 · US EPA
Allergy
None detected
Visibility
6 mi
Clear view
Allergy — Mount Vernon

🌿 Conditions right now

View all →
Birch
None
Grass
None
Oak
None
Alder
None
Hazel
None
Mugwort
None
Ragweed
None

Sun & moon

Sunrise6:13 AM
Sunset7:44 PM
Length of day13h 31m
Moonrise1:41 PM
Moonset11:11 PM
Next full moonAug 27 Sturgeon Moon
Latitude38.3173°N
Longitude-88.9031°E

Water temps nearby

View all →
No beaches within 50 miles
🌤️No rain expected in the next 90 minutes
Now+30+60+90 min
Minute-by-minute precip · HRRR nowcast

Daily planner

computed from today's forecast
Laundry day
Poor
Line-drying weather
Grilling
Fair
Fire up the grill
Running
Poor
Lace up outside
Patio
Fair
Dinner outdoors
Nearby places in {{REGION}}
🌤️
Chicago
Aurora
Heavy rain
21°
🌤️
Rockford
🌤️
Joliet
🌤️
Naperville
Data sources · Wednesday, August 19
Where the Mount Vernon forecast comes from
This page blends NOAA/NWS model guidance with global ensembles for the 10-day outlook, air quality and alerts. Data refreshes every hour, current conditions every 15 minutes. Coordinates: 38.3173°N, -88.9031°.
NBM + global weather models
Updated: 12:40 AM
ZIP codes in Mount Vernon
📮
62814
Mount Vernon
📮
62830
Mount Vernon
📮
62851
Mount Vernon
📮
62864
Mount Vernon
📮
62872
Mount Vernon
📮
62889
Mount Vernon
Weather in Mount Vernon
Over the next 10 days Mount Vernon tops out around 32° (Sunday) and dips to 15° on the coolest night (Friday). Roughly 0.98 in of rain falls over the period, with Wednesday the most likely wet day (82%). Hold onto the patio furniture Thursday: gusts could hit 28 mph. The NWS alert board for this area is currently clear. Right now Mount Vernon is running about 55° warmer than Springfield. Longer view: variable mid-latitude weather in every season.
Mount Vernon, IL · Elev 512 ft · 38.32°N, 88.90°W · Illinois · Forecast computed for these exact coordinates
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 12:40 AM