Jamestown Weather Forecast
- 32
- 46
Breezy
- 37
- 58
Mostly Sunny
- 40
- 59
Partly Sunny
- 36
- 53
Chance Rain Showers
- 38
- 54
Mostly Sunny
- 39
- 59
Mostly Cloudy
Today 20 Oct Larimer and Boulder Counties Between 6000 and 9000 Feet
Partly cloudy. Chance of snow Showers early in the morning. Very windy. Highs 40 to 50. West Winds 25 to 35 Mph with Gusts up to 55 Mph. Chance of snow 30 percent.
Tonight 20 Oct Larimer and Boulder Counties Between 6000 and 9000 Feet
Clear. Lows 25 to 35. West Winds 15 to 25 Mph with Gusts up to 35 Mph.
Jamestown Temperature Statistics
October Temperature
Boulder Municipal Airport (9.9 miles)
Lowest 18 October, 2025
35.6 °FAverage October
57.5 °FHighest 3 October, 2025
86 °F
Climate (2020–Present)
Boulder Municipal Airport (9.9 miles)
Average Low 2020–2025
40.4 °FAverage 2020–2025
52.6 °FAverage High 2020–2025
64.9 °F