Currently: 92 °F. Scattered clouds. (Weather station: Southern Illinois Airport, USA). See more current weatherPast Weather in Mount Vernon — Graph
°F
Time
Wind
(mph)
(mph)
Temp
(°F)
(°F)
68
71
74
77
80
83
86
89
92
95
Tue, Jul 8
Lo:73
6 am
Hi:73
5
Lo:79
12 pm
Hi:84
8
Lo:73
6 pm
Hi:82
4
Wed, Jul 9
Lo:72
12 am
Hi:72
2
Lo:72
6 am
Hi:82
1
Lo:82
12 pm
Hi:86
4
Lo:73
6 pm
Hi:86
3
Thu, Jul 10
Lo:70
12 am
Hi:73
0
Lo:70
6 am
Hi:88
1
Lo:88
12 pm
Hi:90
4
Lo:75
6 pm
Hi:86
4
Fri, Jul 11
Lo:72
12 am
Hi:73
1
Lo:73
6 am
Hi:90
7
Lo:90
12 pm
Hi:91
12
Lo:81
6 pm
Hi:88
8
Sat, Jul 12
Lo:75
12 am
Hi:81
8
Lo:77
6 am
Hi:84
11
Lo:82
12 pm
Hi:86
8
Lo:73
6 pm
Hi:86
6
Sun, Jul 13
Lo:72
12 am
Hi:73
2
Lo:73
6 am
Hi:84
5
Lo:75
12 pm
Hi:88
9
Lo:73
6 pm
Hi:81
6
Mon, Jul 14
12 am
N/A
0
Lo:73
6 am
Hi:81
1
Lo:81
12 pm
Hi:84
6
Lo:73
6 pm
Hi:82
1
Tue, Jul 15
Lo:72
12 am
Hi:73
1
Lo:72
6 am
Hi:86
4
Lo:75
12 pm
Hi:88
7
Lo:73
6 pm
Hi:75
6
Wed, Jul 16
Lo:73
12 am
Hi:75
4
Lo:75
6 am
Hi:88
6
Lo:86
12 pm
Hi:90
9
Lo:79
6 pm
Hi:88
5
Thu, Jul 17
Lo:75
12 am
Hi:77
2
Lo:79
6 am
Hi:86
7
Lo:73
12 pm
Hi:84
7
Lo:73
6 pm
Hi:75
4
Fri, Jul 18
Lo:72
12 am
Hi:73
0
Lo:73
6 am
Hi:81
3
Lo:84
12 pm
Hi:86
2
Lo:73
6 pm
Hi:81
7
Sat, Jul 19
12 am
N/A
0
Lo:73
6 am
Hi:90
8
Lo:77
12 pm
Hi:91
8
Lo:79
6 pm
Hi:81
5
Sun, Jul 20
12 am
N/A
0
Lo:77
6 am
Hi:88
7
Lo:90
12 pm
Hi:91
9
Lo:79
6 pm
Hi:88
7
Mon, Jul 21
Lo:73
12 am
Hi:79
7
Lo:73
6 am
Hi:81
3
Lo:82
12 pm
Hi:86
6
Lo:75
6 pm
Hi:84
1
Tue, Jul 22
Lo:73
12 am
Hi:75
0
Lo:75
6 am
Hi:90
2
Lo:88
12 pm
Hi:93
7
Lo:77
6 pm
Hi:86
3
Wed, Jul 23
Lo:75
12 am
Hi:77
1
Lo:75
6 am
Hi:91
3
Tuesday, July 8, 2025, 6:00 am — 12:00 pm
73 / 73 °F
Rain. Fog.
Humidity: 95%
Barometer: 30.11 "Hg
SSE
Wind: 4.971 mph
Mount Vernon Temperature Yesterday
Maximum temperature yesterday: 93 °F (at 2:52 pm)
Minimum temperature yesterday: 74 °F (at 5:21 am)
Average temperature yesterday: 82 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 93 °F (Jul 22, 2:52 pm) | 100% (Jul 9, 5:03 am) | 30.12 "Hg (Jul 9, 5:03 am) |
| Low | 70 °F (Jul 10, 4:52 am) | 40% (Jul 19, 10:50 am) | 29.87 "Hg (Jul 11, 5:52 pm) |
| Average | 79 °F | 85% | 29.99 "Hg |
| * Reported Jul 8 11:08 am — Jul 23 11:52 am, Mount Vernon. Weather by CustomWeather, © 2025 | |||
Note: Actual official high and low records may vary slightly from our data, if they occured in-between our weather recording intervals... More about our weather records
Mount Vernon Weather History for the Previous 24 Hours
Scroll right to see more
| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 11:52 am Wed, Jul 23 | | 92 °F | Scattered clouds. | 5 mph | ↑ | 69% | 30.05 "Hg | 10 mi |
| 10:52 am |  | 90 °F | Sunny. | 3 mph | ↑ | 73% | 30.05 "Hg | 7 mi |
| 9:52 am | | 87 °F | Sunny. | 5 mph | ↑ | 77% | 30.05 "Hg | 7 mi |
| 8:52 am |  | 85 °F | Partly sunny. | 6 mph | ↑ | 80% | 30.06 "Hg | 7 mi |
| 7:52 am |  | 80 °F | Fog. | No wind | ↑ | 90% | 30.05 "Hg | 6 mi |
| 6:52 am | | 77 °F | Fog. | No wind | ↑ | 96% | 30.04 "Hg | 4 mi |
| 6:27 am | | 76 °F | Fog. | 3 mph | ↑ | 100% | 30.05 "Hg | 3 mi |
| 6:20 am | | 76 °F | Fog. | 3 mph | ↑ | 97% | 30.05 "Hg | 2 mi |
| 5:52 am | | 76 °F | Fog. | 3 mph | ↑ | 97% | 30.03 "Hg | 3 mi |
| 4:52 am |  | 76 °F | Fog. | No wind | ↑ | 97% | 30.02 "Hg | 6 mi |
| 3:52 am | | 76 °F | Fog. | 3 mph | ↑ | 97% | 30.01 "Hg | 5 mi |
| 2:52 am | | 76 °F | Fog. | No wind | ↑ | 97% | 30.02 "Hg | 6 mi |
| 1:52 am | | 76 °F | Fog. | No wind | ↑ | 97% | 30.01 "Hg | 6 mi |
| 12:52 am |  | 77 °F | Clear. | No wind | ↑ | 94% | 30.01 "Hg | 8 mi |
| 11:52 pm Tue, Jul 22 | | 77 °F | Clear. | No wind | ↑ | 94% | 30.02 "Hg | 8 mi |
| 10:52 pm | | 78 °F | Clear. | 3 mph | ↑ | 90% | 30.01 "Hg | 10 mi |
| 9:52 pm | | 79 °F | Clear. | No wind | ↑ | 90% | 30.00 "Hg | 9 mi |
| 8:52 pm | | 81 °F | Passing clouds. | 6 mph | ↑ | 85% | 29.99 "Hg | 10 mi |
| 7:52 pm | | 83 °F | Passing clouds. | 5 mph | ↑ | 88% | 29.98 "Hg | 10 mi |
| 6:52 pm | | 86 °F | Scattered clouds. | 6 mph | ↑ | 75% | 29.97 "Hg | 10 mi |
| 5:52 pm | | 87 °F | Scattered clouds. | 8 mph | ↑ | 75% | 29.96 "Hg | 10 mi |
| 5:24 pm | | 89 °F | Scattered clouds. | 7 mph | ↑ | 70% | 29.98 "Hg | 10 mi |
| 5:06 pm |  | 88 °F | Thundershowers. Scattered clouds. | 8 mph | ↑ | 70% | 29.98 "Hg | 10 mi |
| 4:52 pm | | 88 °F | Scattered clouds. | 10 mph | ↑ | 75% | 29.97 "Hg | 10 mi |
| 3:52 pm | | 90 °F | Scattered clouds. | 9 mph | ↑ | 70% | 29.97 "Hg | 10 mi |
| 3:29 pm | | 92 °F | Thundershowers. Scattered clouds. | 5 mph | ↑ | 66% | 29.99 "Hg | 10 mi |
| 2:52 pm | | 93 °F | Scattered clouds. | 3 mph | ↑ | 59% | 29.99 "Hg | 10 mi |
| 1:55 pm | | 91 °F | Scattered clouds. | 5 mph | ↑ | 59% | 30.00 "Hg | 10 mi |
| 12:52 pm | | 91 °F | Scattered clouds. | 6 mph | ↑ | 66% | 30.00 "Hg | 10 mi |
| Weather by CustomWeather, © 2025 | ||||||||