The temperatures in Monticello in August are comfortable with low of 15°C and and high up to 26°C.
You can expect about 3 to 8 days of rain in Monticello during the month of August. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Monticello in August 2025.
If you’re planning to visit Monticello in the near future, we highly recommend that you review the 14 day weather forecast for Monticello before you arrive.
Temperatures
26° / 15°
Rainy Days
6
Snowy Days
0
Dry Days
25
Rainfall
120
mm
Sun Hours
10.6
Hrs
