Jamestown Weather Forecast
- 63
- 84
Mostly Sunny
- 64
- 84
Rain Showers
- 61
- 73
Rain Showers
- 61
- 79
Slight Chance Thunderstorms
- 59
- 81
Mostly Sunny
- 63
- 82
Mostly Sunny
Today 29 Jul Grant
Mostly sunny. Highs in the mid 80s. Light Winds.
Tonight 29 Jul Grant
Partly cloudy. Patchy smoke in the evening. Patchy fog after midnight. Lows in the lower 60s. South Winds around 5 Mph.
Jamestown Temperature Statistics
July Temperature
Platteville Municipal Airport (8.7 miles)
Lowest 23 July, 2026
51.4 °FAverage July
76.6 °FHighest 27 July, 2026
94.3 °F
Climate (2021–2026)
Platteville Municipal Airport (8.7 miles)
Average Low 2021–2026
40.7 °FAverage 2021–2026
49.9 °FAverage High 2021–2026
58.8 °F