Castle Lake Weather Forecast
- 48
- 76
Rain Showers Likely
- 43
- 59
Rain Showers Likely
- 36
- 58
Chance Rain Showers
- 35
- 58
Partly Sunny
- 40
- 59
Chance Rain Showers
- 35
- 56
Chance Rain Showers
Today 26 Mar Upper Columbia Basin
Mostly sunny. Highs in the 70s. East wind 5 to 15 Mph with Gusts up to 25 Mph.
Tonight 26 Mar Upper Columbia Basin
Rain Showers likely. A chance of Thunderstorms. Some Thunderstorms may be severe with damaging Winds and large hail in the evening. Some Thunderstorms may be severe with damaging Winds and large hail overnight. Lows in the upper 40s. Southeast wind 5 to 15 Mph with Gusts up to 20 Mph. Chance of precipitation 70 percent. Rainfall Amounts less than a quarter of an Inch, except higher Amounts possible in Thunderstorms.
Castle Lake Temperature Statistics
March Temperature
Ephrata, Ephrata Municipal Airport (21.7 miles)
Lowest 14 March, 2025
21.8 °FAverage March
44.3 °FHighest 23 March, 2025
62.1 °F
Climate (2020–Present)
Ephrata, Ephrata Municipal Airport (21.7 miles)
Average Low 2020–2025
42 °FAverage 2020–2025
53 °FAverage High 2020–2025
63.2 °F