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Twisp, WA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Twisp, a town in Okanogan County, Washington.

Today
81°F
Mostly Sunny
Mostly sunny, with a high near 81. Southeast wind 2 to 7 mph.

7-day forecast for Twisp

WhenTempForecastWindPrecip
Today 81°F Mostly Sunny 2 to 7 mph SE 1%
Tonight 48°F Mostly Clear 1 to 5 mph NW 1%
Sunday 82°F Sunny 0 to 8 mph E 0%
Sunday Night 50°F Mostly Clear 0 to 5 mph N 0%
Monday 84°F Mostly Sunny 1 to 7 mph SE 0%
Monday Night 47°F Partly Cloudy 5 mph W 0%
Tuesday 80°F Mostly Sunny 1 to 5 mph SW 0%
Tuesday Night 42°F Partly Cloudy 3 to 7 mph W 0%
Wednesday 74°F Mostly Sunny 2 to 7 mph W 1%
Wednesday Night 41°F Partly Cloudy 1 to 7 mph NW 5%
Thursday 69°F Partly Sunny then Slight Chance Rain Showers 1 to 5 mph E 15%
Thursday Night 43°F Slight Chance Rain Showers 0 to 5 mph NW 16%
Friday 67°F Partly Sunny 1 to 6 mph NE 11%
Friday Night 40°F Partly Cloudy 2 to 6 mph N 11%

Forecast source: National Weather Service (api.weather.gov) for Twisp (48.361, -120.117). Updated through the day.

Growing snapshot for Twisp

Last spring frost
May 15
First fall frost
Sep 22
Growing season
127 days
Hardiness zone
6b

More local growing data for Twisp: nearby ZIP 98856 weather · frost dates · planting calendar · Washington frost dates

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Climate data from the nearest NOAA station, Winthrop 1 Wsw, Wa (9.7 mi from Twisp). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.