Mattawa Weather Forecast
- 39
- 56
Increasing Clouds
- 46
- 60
Mostly Cloudy
- 44
- 64
Mostly Cloudy
- 38
- 66
Partly Sunny
- 32
- 53
Mostly Sunny
- 32
- 50
Mostly Cloudy
Today 5 Mar Moses Lake Area
Mostly sunny. Highs in the lower to mid 50s. Breezy. West wind 10 to 20 Mph with Gusts up to 30 Mph.
Tonight 5 Mar Moses Lake Area
Mostly clear in the Evening, becoming mostly cloudy. Lows in the 30s. West wind 5 to 15 Mph. Gusts up to 30 Mph in the evening.
Mattawa Temperature Statistics
March Temperature
Sunnyside Municipal Airport (28.6 miles)
Lowest 1 March, 2026
27 °FAverage March
43.4 °FHighest 3 March, 2026
62.8 °F
Climate (2021–Present)
Sunnyside Municipal Airport (28.6 miles)
Average Low 2021–2026
39 °FAverage 2021–2026
51.5 °FAverage High 2021–2026
63.6 °F