Jamestown Weather Forecast
- 58
- 77
Rain Showers
- 59
- 81
Chance Thunderstorms
- 57
- 80
Chance Thunderstorms
- 60
- 81
Mostly Sunny
- 64
- 88
Slight Chance Thunderstorms
- 59
- 86
Chance Thunderstorms
Today 29 Jul Larimer and Boulder Counties Between 6000 and 9000 Feet
Partly cloudy in the Morning, then Thunderstorms likely in the afternoon. Highs 76 to 86. Chance of precipitation 70 percent.
Tonight 29 Jul Larimer and Boulder Counties Between 6000 and 9000 Feet
Partly cloudy. Lows 52 to 62.
Jamestown Temperature Statistics
July Temperature
Boulder Municipal Airport (9.9 miles)
Lowest 1 July, 2026
55.4 °FAverage July
78.9 °FHighest 25 July, 2026
102.2 °F
Climate (2021–2026)
Boulder Municipal Airport (9.9 miles)
Average Low 2021–2026
41.3 °FAverage 2021–2026
53.7 °FAverage High 2021–2026
66.3 °F