Monticello Weather Forecast
- 62
- 82
Mostly Sunny
- 60
- 81
Sunny
- 63
- 83
Mostly Sunny
- 64
- 84
Slight Chance Thunderstorms
- 64
- 78
Slight Chance Thunderstorms
- 64
- 79
Slight Chance Thunderstorms
- 65
- 82
Mostly Sunny
Today 12 Sep Fairfield
Sunny. Near steady temperature in the lower 80s. Northeast Winds around 5 Mph.
Tonight 12 Sep Fairfield
Mostly clear. Lows in the upper 50s. Northeast Winds around 5 Mph.
Monticello Temperature Statistics
September Temperature
Winnsboro/Fairfield County Airport (11.2 miles)
Lowest 10 September, 2025
53.6 °FAverage September
70.9 °FHighest 5 September, 2025
89.6 °F
Climate (2020–Present)
Winnsboro/Fairfield County Airport (11.2 miles)
Average Low 2020–2025
53.1 °FAverage 2020–2025
62.5 °FAverage High 2020–2025
73.3 °F