Grimes Lake Weather Forecast
- 46
- 76
Slight Chance Thunderstorms
- 55
- 81
Mostly Sunny
- 50
- 86
Breezy
- 48
- 73
Partly Sunny
- 50
- 70
Chance Rain Showers
- 51
- 73
Slight Chance Rain Showers
Today 29 May Waterville Plateau
Mostly cloudy in the morning then clearing. A chance of Thunderstorms in the morning. A chance of rain Showers. Highs in the lower 70s to lower 80s. Windy. West wind 15 to 25 Mph with Gusts up to 35 Mph. Chance of precipitation 20 percent.
Tonight 29 May Waterville Plateau
Mostly clear. Lows in the mid 40s to lower 50s. Windy. West wind 20 to 30 Mph with Gusts up to 40 Mph, becoming northwest 5 to 15 Mph with Gusts up to 25 Mph overnight.
Grimes Lake Temperature Statistics
May Temperature
Ephrata, Ephrata Municipal Airport (29.2 miles)
Lowest 19 May, 2025
36.6 °FAverage May
61 °FHighest 25 May, 2025
86 °F
Climate (2020–Present)
Ephrata, Ephrata Municipal Airport (29.2 miles)
Average Low 2020–2025
42 °FAverage 2020–2025
53.1 °FAverage High 2020–2025
63.4 °F