Bellingham, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bellingham, a city in Whatcom County, Washington.
Overnight
55°F
Mostly Clear
Mostly clear, with a low around 55. Wind around 0 mph.
7-day forecast for Bellingham
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 55°F | Mostly Clear | 0 mph | 0% |
| Tuesday | 85°F | Sunny then Patchy Smoke | 0 to 6 mph WNW | 0% |
| Tuesday Night | 58°F | Mostly Clear | 0 to 3 mph SW | 0% |
| Wednesday | 87°F | Sunny then Patchy Smoke | 0 to 6 mph NW | 0% |
| Wednesday Night | 59°F | Mostly Clear | 0 to 3 mph W | 0% |
| Thursday | 86°F | Sunny | 0 to 5 mph WSW | 0% |
| Thursday Night | 61°F | Mostly Clear | 0 to 3 mph S | 0% |
| Friday | 83°F | Sunny | 1 to 6 mph SSW | 0% |
| Friday Night | 59°F | Mostly Clear | 1 to 5 mph S | 0% |
| Saturday | 77°F | Sunny | 1 to 7 mph S | 0% |
| Saturday Night | 57°F | Mostly Clear | 5 mph S | 0% |
| Sunday | 74°F | Mostly Sunny | 2 to 6 mph SSW | 0% |
| Sunday Night | 56°F | Mostly Clear | 1 to 5 mph S | 3% |
| Monday | 75°F | Mostly Sunny | 1 to 6 mph SW | 3% |
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
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Peaceful Valley
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Sudden Valley
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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 Aug 4, 2026.