Highline Lake State Park Weather Forecast
- 52
- 69
Rain Showers
- 53
- 73
Chance Rain Showers
- 50
- 77
Mostly Sunny
- 51
- 78
Sunny
- 52
- 79
Mostly Sunny
- 52
- 79
Partly Sunny
Today 28 Sep Grand Valley
Showers in the Morning, then Showers with a slight chance of Thunderstorms in the afternoon. Not as warm. Highs in the 60s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph in the Morning, becoming light.
Tonight 28 Sep Grand Valley
Showers with a slight chance of Thunderstorms in the Evening, then Showers likely after midnight. Lows 45 to 55.
Highline Lake State Park Temperature Statistics
September Temperature
Grand Junction Regional Airport (18.6 miles)
Lowest 20 September, 2026
50.6 °FAverage September
72 °FHighest 4 September, 2026
91.7 °F
Climate (2021–2026)
Grand Junction Regional Airport (18.6 miles)
Average Low 2021–2026
43.8 °FAverage 2021–2026
56.3 °FAverage High 2021–2026
69.2 °F