Mossyrock Weather Forecast
- 37
- 46
Rain
- 36
- 46
Rain
- 35
- 45
Rain
- 32
- 43
Rain Likely
- 33
- 44
Chance Rain
- 33
- 43
Chance Rain
- 34
- 46
Chance Rain
Today 21 Dec Foothills and Valleys of Thurston and Lewis Counties
Mostly cloudy with a chance of rain Showers in the late morning and early Afternoon, then rain Showers late in the afternoon. Rainfall Amounts a tenth to a quarter of an inch possible. Highs in the mid to upper 40s. South wind 10 to 15 Mph.
Tonight 21 Dec Foothills and Valleys of Thurston and Lewis Counties
Rain in the Evening, then a chance of rain and snow after midnight. No snow accumulation. Lows in the mid to upper 30s. South wind 10 to 15 Mph decreasing to 10 Mph or less with Gusts to 20 Mph after midnight.
Mossyrock Temperature Statistics
December Temperature
Chehalis-Centralia Airport (25.5 miles)
Lowest 1 December, 2025
33.8 °FAverage December
48.4 °FHighest 15 December, 2025
60.8 °F
Climate (2020–Present)
Chehalis-Centralia Airport (25.5 miles)
Average Low 2020–2025
43.7 °FAverage 2020–2025
52.1 °FAverage High 2020–2025
61.4 °F