Collier Memorial State Park Weather Forecast
- 39
- 65
Rain Showers
- 33
- 57
Slight Chance Rain Showers
- 32
- 63
Mostly Sunny
- 36
- 71
Sunny
- 41
- 76
Mostly Sunny
- 43
- 78
Partly Sunny
- 40
- 75
Mostly Sunny
Today 28 May Klamath Basin
Chance of Thunderstorms early this Afternoon, then Showers and chance of Thunderstorms late this afternoon. Some Thunderstorms may produce gusty Winds, small Hail, and heavy Rainfall, then some Thunderstorms may be severe with gusty Winds, small Hail, and heavy rainfall late this afternoon. Highs in the lower to mid 60s. Northwest Winds 5 to 10 Mph. Chance of precipitation 80 percent.
Tonight 28 May Klamath Basin
Rain Showers and chance of Thunderstorms. Some Thunderstorms may produce gusty Winds, small Hail, and heavy rainfall. Lows in the mid 30s to mid 40s. West Winds 5 to 10 Mph. Chance of precipitation 90 percent.
Collier Memorial State Park Temperature Statistics
May Temperature
Klamath Falls International Airport (34.8 miles)
Lowest 14 May, 2026
26.7 °FAverage May
55.3 °FHighest 11 May, 2026
84.7 °F
Climate (2021–Present)
Klamath Falls International Airport (34.8 miles)
Average Low 2021–2026
34.1 °FAverage 2021–2026
48.9 °FAverage High 2021–2026
63.6 °F