Mount Vernon Weather Forecast
- 67
- 94
Partly Sunny
- 67
- 91
Slight Chance Thunderstorms
- 67
- 88
Slight Chance Thunderstorms
- 65
- 88
Slight Chance Thunderstorms
- 63
- 88
Chance Rain Showers
- 60
- 82
Chance Thunderstorms
- 56
- 76
Chance Rain Showers
Today 13 Sep Linn
Sunny, hot. Near steady temperature in the lower 90s. Southwest Winds 5 to 10 Mph.
Tonight 13 Sep Linn
Partly cloudy. Lows in the upper 60s. Southeast Winds 5 to 10 Mph.
Mount Vernon Temperature Statistics
September Temperature
Cedar Rapids Airport (15.5 miles)
Lowest 7 September, 2025
39.9 °FAverage September
61.2 °FHighest 11 September, 2025
82.9 °F
Climate (2020–Present)
Cedar Rapids Airport (15.5 miles)
Average Low 2020–2025
40.1 °FAverage 2020–2025
50.4 °FAverage High 2020–2025
60.8 °F