Montesano Weather Forecast
- 58
- 80
Increasing Clouds
- 52
- 67
Rain
- 49
- 71
Partly Sunny
- 53
- 80
Mostly Sunny
- 55
- 86
Mostly Sunny
- 55
- 78
Partly Sunny
- 55
- 75
Mostly Sunny
Today 31 Jul Lower Chehalis River Valley
Partly sunny in the morning then becoming sunny. Highs in the 70s. Light wind becoming west to 10 Mph in the afternoon.
Tonight 31 Jul Lower Chehalis River Valley
Partly cloudy until early Morning, then cloudy with a slight chance of rain late in the night. Lows near 60. West wind around 10 Mph in the evening becoming light.
Montesano Temperature Statistics
July Temperature
Hoquiam, Bowerman Airport (14.9 miles)
Lowest 6 July, 2026
47.6 °FAverage July
61.1 °FHighest 21 July, 2026
79.6 °F
Climate (2021–2026)
Hoquiam, Bowerman Airport (14.9 miles)
Average Low 2021–2026
46.3 °FAverage 2021–2026
52.3 °FAverage High 2021–2026
58.6 °F