Royal Lake Weather Forecast
- 48
- 74
Increasing Clouds
- 53
- 76
Rain Showers
- 45
- 68
Rain Showers
- 43
- 65
Partly Sunny
- 44
- 65
Partly Sunny
- 45
- 66
Partly Sunny
Today 23 Sep Moses Lake Area
Mostly cloudy in the Morning, becoming partly cloudy. Highs in the lower to mid 70s. South wind 5 to 10 Mph.
Tonight 23 Sep Moses Lake Area
Partly cloudy. Lows in the mid 40s to lower 50s. Light Wind, becoming northeast 5 to 10 Mph overnight.
Royal Lake Temperature Statistics
September Temperature
Grant County Airport (22.4 miles)
Lowest 14 September, 2026
41.6 °FAverage September
62.8 °FHighest 20 September, 2026
84.7 °F
Climate (2021–2026)
Grant County Airport (22.4 miles)
Average Low 2021–2026
40.8 °FAverage 2021–2026
52.5 °FAverage High 2021–2026
64.2 °F