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The temperatures in Monticello in October are quite cold with temperatures between 5°C and 13°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Monticello during the month of October. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
You can expect a few days of snow in Monticello during October. It’s important to get out your snow boots and warm mittens to stay warm while you explore Monticello.
Our weather forecast can give you a great sense of what weather to expect in Monticello in October 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.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -8° / -14° | 3 | 11 | 18 | 27 mm | Awful | Monticello in January |
| February | -6° / -13° | 2 | 11 | 15 | 35 mm | Awful | Monticello in February |
| March | 3° / -4° | 6 | 14 | 11 | 73 mm | Awful | Monticello in March |
| April | 11° / 2° | 7 | 17 | 6 | 105 mm | Awful | Monticello in April |
| May | 19° / 9° | 8 | 23 | 1 | 132 mm | Ok | Monticello in May |
| June | 24° / 14° | 8 | 22 | 0 | 186 mm | Good | Monticello in June |
| July | 27° / 17° | 7 | 24 | 0 | 144 mm | Good | Monticello in July |
| August | 26° / 15° | 6 | 25 | 0 | 120 mm | Perfect | Monticello in August |
| September | 22° / 11° | 4 | 26 | 0 | 84 mm | Good | Monticello in September |
| October | 13° / 5° | 5 | 23 | 3 | 90 mm | Bad | Monticello in October |
| November | 4° / -2° | 4 | 18 | 8 | 51 mm | Awful | Monticello in November |
| December | -4° / -9° | 4 | 11 | 16 | 48 mm | Awful | Monticello in December |