Grissom Weather Forecast
- 71
- 83
Mostly Cloudy
- 68
- 84
Slight Chance Thunderstorms
- 66
- 82
Partly Sunny
- 65
- 82
Partly Sunny
- 68
- 84
Chance Rain Showers
- 62
- 85
Mostly Sunny
- 60
- 79
Partly Sunny
Today 20 Aug Granville
Partly sunny. Near steady temperature in the lower 80s. Northeast Winds around 5 Mph.
Tonight 20 Aug Granville
Partly cloudy this Evening, then becoming mostly cloudy. Lows around 70. Northeast Winds 5 to 10 Mph.
Grissom Temperature Statistics
August Temperature
Franklin County Airport (14.9 miles)
Lowest 3 August, 2025
57.2 °FAverage August
72.9 °FHighest 17 August, 2025
89.6 °F
Climate (2020–Present)
Franklin County Airport (14.9 miles)
Average Low 2020–2025
49.2 °FAverage 2020–2025
59.5 °FAverage High 2020–2025
70.4 °F