Sulphur Lake Weather Forecast
- 35
- 61
Partly Sunny
- 39
- 65
Increasing Clouds
- 41
- 67
Partly Sunny
- 40
- 67
Partly Sunny
- 45
- 71
Mostly Sunny
- 47
- 75
Partly Sunny
- 46
- 74
Partly Sunny
Today 25 Apr Lower Columbia Basin of Washington
Sunny. Highs in the lower to mid 60s. Northwest wind 5 to 10 Mph.
Tonight 25 Apr Lower Columbia Basin of Washington
Mostly clear. Lows in the mid to upper 30s. North wind 5 to 10 Mph in the Evening, becoming light.
Sulphur Lake Temperature Statistics
April Temperature
Tri-Cities Airport (31.7 miles)
Lowest 8 April, 2026
31.6 °FAverage April
53.4 °FHighest 6 April, 2026
79.6 °F
Climate (2021–Present)
Tri-Cities Airport (31.7 miles)
Average Low 2021–2026
43.1 °FAverage 2021–2026
55.7 °FAverage High 2021–2026
68.1 °F