Mattawa Weather Forecast
- 40
- 58
Chance Rain
- 39
- 56
Partly Sunny
- 45
- 59
Mostly Cloudy
- 44
- 63
Mostly Cloudy
- 40
- 66
Mostly Cloudy
- 33
- 54
Mostly Sunny
- 33
- 51
Mostly Cloudy
Today 4 Mar Moses Lake Area
Rain in the Morning, then a chance of rain in the afternoon. Highs in the lower to mid 50s. Windy. Southwest wind 15 to 25 Mph with Gusts up to 30 Mph. Chance of precipitation near 100 percent. Rainfall Amounts less than a quarter of an inch.
Tonight 4 Mar Moses Lake Area
Partly cloudy. Lows in the 30s. West wind 5 to 15 Mph with Gusts up to 20 Mph.
Mattawa Temperature Statistics
March Temperature
Sunnyside Municipal Airport (28.6 miles)
Lowest 1 March, 2026
27 °FAverage March
41.4 °FHighest 2 March, 2026
61.2 °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