Summit, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Summit, a community in Pierce County, Washington.
This Afternoon
58°F
Partly Sunny
Partly sunny. High near 58, with temperatures falling to around 53 in the afternoon. North wind around 3 mph.
7-day forecast for Summit
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 58°F | Partly Sunny | 3 mph N | 3% |
| Tonight | 39°F | Partly Cloudy then Patchy Fog | 1 mph SE | 3% |
| Wednesday | 58°F | Patchy Fog then Slight Chance Light Rain | 0 to 3 mph SSW | 23% |
| Wednesday Night | 47°F | Light Rain | 3 to 10 mph SSW | 98% |
| Thursday | 58°F | Slight Chance Light Rain then Partly Sunny | 5 to 8 mph SSW | 19% |
| Thursday Night | 46°F | Light Rain | 5 mph S | 76% |
| Friday | 57°F | Light Rain | 5 to 8 mph S | 76% |
| Friday Night | 46°F | Chance Light Rain | 5 mph S | 44% |
| Saturday | 62°F | Mostly Cloudy then Chance Light Rain | 2 mph S | 28% |
| Saturday Night | 49°F | Light Rain Likely | 2 to 15 mph SSW | 73% |
| Sunday | 57°F | Light Rain Likely | 5 to 14 mph SSW | 73% |
| Sunday Night | 43°F | Slight Chance Light Rain | 1 to 5 mph SSE | 24% |
| Monday | 57°F | Chance Light Rain | 1 to 5 mph SSE | 51% |
| Monday Night | 47°F | Light Rain Likely | 5 to 9 mph SSE | 69% |
Forecast source: National Weather Service (api.weather.gov) for Summit (47.169, -122.364). Updated through the day.
Growing snapshot for Summit
Last spring frost
Mar 8
First fall frost
Nov 14
Growing season
250 days
Hardiness zone
8b
More local growing data for Summit: nearby ZIP 98443 weather · frost dates · planting calendar · Washington frost dates
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Climate data from the nearest NOAA station, Tacoma #1, Wa (3.5 mi from Summit). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.