Monticello Weather Forecast
- 63
- 85
Chance Rain Showers
- 60
- 79
Chance Rain Showers
- 61
- 82
Chance Rain Showers
- 60
- 82
Chance Rain Showers
- 57
- 82
Chance Rain Showers
- 56
- 78
Slight Chance Thunderstorms
Today 18 Sep Jones
Mostly sunny. A slight chance of Showers in the morning. Highs in the mid 80s. Southeast Winds around 5 Mph. Chance of rain 20 percent.
Tonight 18 Sep Jones
Mostly cloudy. A chance of Showers after midnight. Lows in the lower 60s. East Winds around 5 Mph. Chance of rain 40 percent.
Monticello Temperature Statistics
September Temperature
Monticello Regional Airport (1.9 miles)
Lowest 7 September, 2025
37.4 °FAverage September
63.1 °FHighest 13 September, 2025
93.2 °F
Climate (2020–Present)
Monticello Regional Airport (1.9 miles)
Average Low 2020–2025
37.6 °FAverage 2020–2025
48.3 °FAverage High 2020–2025
58.5 °F