Bellingham, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bellingham, a city in Whatcom County, Washington.
Overnight
52°F
Mostly Cloudy
Mostly cloudy, with a low around 52. South southeast wind around 1 mph.
7-day forecast for Bellingham
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 52°F | Mostly Cloudy | 1 mph SSE | 0% |
| Saturday | 72°F | Partly Sunny | 3 mph SSW | 0% |
| Saturday Night | 51°F | Mostly Clear | 0 mph | 0% |
| Sunday | 73°F | Mostly Sunny | 0 to 3 mph SW | 0% |
| Sunday Night | 52°F | Partly Cloudy | 2 mph W | 0% |
| Monday | 72°F | Mostly Sunny | 0 to 5 mph SSW | 0% |
| Monday Night | 52°F | Partly Cloudy | 2 mph S | 0% |
| Tuesday | 70°F | Partly Sunny | 0 to 5 mph SSW | 0% |
| Tuesday Night | 51°F | Mostly Cloudy | 5 mph S | 10% |
| Wednesday | 67°F | Partly Sunny | 5 mph S | 13% |
| Wednesday Night | 51°F | Mostly Cloudy | 2 mph S | 12% |
| Thursday | 66°F | Partly Sunny | 0 to 5 mph N | 13% |
| Thursday Night | 50°F | Slight Chance Light Rain | 0 to 3 mph WNW | 22% |
| Friday | 66°F | Slight Chance Light Rain then Mostly Sunny | 0 to 5 mph W | 22% |
Forecast source: National Weather Service (api.weather.gov) for Bellingham (48.753, -122.470). Updated through the day.
Growing snapshot for Bellingham
Last spring frost
Apr 1
First fall frost
Nov 2
Growing season
216 days
Hardiness zone
8b
More local growing data for Bellingham: nearby ZIP 98225 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
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Glacier
Kendall
Lynden
Maple Falls
Marietta-Alderwood
Nooksack
Peaceful Valley
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Sudden Valley
Sumas
Climate data from the nearest NOAA station, Bellingham 3 Ssw, Wa (2.8 mi from Bellingham). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.