Mount Vernon Weather Forecast
- 68
- 90
Mostly Sunny
- 70
- 91
Slight Chance Thunderstorms
- 67
- 88
Thunderstorms Likely
- 66
- 85
Slight Chance Thunderstorms
- 67
- 87
Chance Thunderstorms
- 66
- 84
Chance Thunderstorms
- 67
- 86
Chance Thunderstorms
Today 5 Jul Knox
Sunny, hot with Highs around 90. South Winds 5 to 10 Mph.
Tonight 5 Jul Knox
Clear. Lows in the upper 60s. South Winds around 5 Mph.
Mount Vernon Temperature Statistics
July Temperature
Knox County Airfield (4.3 miles)
Lowest 3 July, 2025
62.6 °FAverage July
73.9 °FHighest 3 July, 2025
86 °F
Climate (2020–Present)
Knox County Airfield (4.3 miles)
Average Low 2020–2025
43.4 °FAverage 2020–2025
52.2 °FAverage High 2020–2025
61.6 °F