Lake Merwin Campers Hideaway Weather Forecast
- 32
- 50
Partly Sunny
- 30
- 48
Partly Sunny
- 30
- 46
Partly Sunny
- 30
- 46
Mostly Sunny
- 32
- 48
Chance Rain/Snow
- 36
- 46
Rain Likely
Today 20 Jan South Washington Cascade Foothills
Widespread frost and dense fog this morning. Sunny. Highs in the lower 50s. East wind 5 to 10 Mph, except east wind 15 to 20 Mph with Gusts up to 40 Mph near the gorge.
Tonight 20 Jan South Washington Cascade Foothills
Mostly clear in the Evening, then becoming partly cloudy. Areas of dense fog and frost in the evening. Widespread frost after midnight. Lows in the lower 30s. East wind 5 to 10 Mph, except east wind 15 to 20 Mph near the gorge. Gusts up to 35 Mph near the gorge.
Lake Merwin Campers Hideaway Temperature Statistics
January Temperature
Southwest Washington Regional Airport (24.9 miles)
Lowest 18 January, 2026
26.1 °FAverage January
43.4 °FHighest 15 January, 2026
55.9 °F
Climate (2021–Present)
Southwest Washington Regional Airport (24.9 miles)
Average Low 2021–2026
45.1 °FAverage 2021–2026
52.9 °FAverage High 2021–2026
62.4 °F