Jamestown Weather Forecast
- 51
- 75
Mostly Cloudy
- 50
- 63
Mostly Cloudy
- 54
- 69
Mostly Cloudy
- 56
- 72
Rain Showers Likely
- 54
- 71
Chance Rain Showers
- 56
- 70
Chance Rain Showers
- 54
- 68
Rain Showers Likely
Today 25 Oct Grant
Mostly cloudy with a 50 percent chance of Showers. Lows in the lower 50s. Highs in the mid 60s.
Tonight 25 Oct Grant
Mostly cloudy. Lows around 50. North Winds 5 to 10 Mph.
Jamestown Temperature Statistics
October Temperature
Platteville Municipal Airport (8.7 miles)
Lowest 17 October, 2026
32 °FAverage October
58.2 °FHighest 12 October, 2026
85.1 °F
Climate (2021–2026)
Platteville Municipal Airport (8.7 miles)
Average Low 2021–2026
40.8 °FAverage 2021–2026
49.9 °FAverage High 2021–2026
58.7 °F