Harman US

Beacon Hill, WA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Beacon Hill, a community in Cowlitz County, Washington.

Today
78°F
Mostly Sunny
Mostly sunny, with a high near 78. North northwest wind 1 to 5 mph.

7-day forecast for Beacon Hill

WhenTempForecastWindPrecip
Today 78°F Mostly Sunny 1 to 5 mph NNW 0%
Tonight 51°F Mostly Clear then Patchy Fog 1 to 5 mph NW 0%
Sunday 79°F Mostly Sunny 2 to 7 mph NNW 0%
Sunday Night 52°F Partly Cloudy 2 to 6 mph NNW 0%
Monday 76°F Partly Sunny 2 to 8 mph NNW 0%
Monday Night 53°F Partly Cloudy then Patchy Fog 1 to 8 mph NW 0%
Tuesday 73°F Patchy Fog then Partly Sunny 1 to 8 mph NW 0%
Tuesday Night 50°F Partly Cloudy then Patchy Fog 0 to 8 mph NW 4%
Wednesday 70°F Patchy Fog then Partly Sunny 0 to 6 mph W 4%
Wednesday Night 49°F Mostly Cloudy 1 to 6 mph NNW 2%
Thursday 68°F Partly Sunny 2 to 8 mph N 13%
Thursday Night 50°F Mostly Cloudy then Slight Chance Light Rain 5 to 8 mph NNW 15%
Friday 66°F Slight Chance Light Rain 5 to 9 mph NNW 16%
Friday Night 48°F Partly Cloudy 5 to 9 mph NNW 11%

Forecast source: National Weather Service (api.weather.gov) for Beacon Hill (46.171, -122.921). Updated through the day.

Growing snapshot for Beacon Hill

Last spring frost
Apr 8
First fall frost
Nov 5
Growing season
210 days
Hardiness zone
8b

More local growing data for Beacon Hill: nearby ZIP 98609 weather · frost dates · planting calendar · Washington frost dates

Nearby towns & communities

All Washington locations ›

Climate data from the nearest NOAA station, Longview, Wa (6 mi from Beacon Hill). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.