Tri-City, OR Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Tri-City, a community in Douglas County, Oregon.

This Afternoon

62°F

Mostly Sunny

Mostly sunny. High near 62, with temperatures falling to around 57 in the afternoon. North wind around 5 mph.

7-day forecast for Tri-City

When	Temp	Forecast	Wind	Precip
This Afternoon	62°F	Mostly Sunny	5 mph N	2%
Tonight	38°F	Mostly Clear	2 mph NE	2%
Wednesday	62°F	Partly Sunny then Chance Light Rain	3 mph SSE	39%
Wednesday Night	43°F	Light Rain Likely then Mostly Cloudy	0 to 3 mph N	71%
Thursday	62°F	Mostly Sunny	1 mph ESE	5%
Thursday Night	41°F	Partly Cloudy	0 to 6 mph S	7%
Friday	66°F	Partly Sunny	0 to 5 mph SSE	7%
Friday Night	42°F	Partly Cloudy	0 to 7 mph SE	2%
Saturday	71°F	Mostly Sunny	0 to 6 mph S	3%
Saturday Night	46°F	Chance Light Rain	0 to 14 mph S	51%
Sunday	61°F	Chance Light Rain	0 to 8 mph S	51%
Sunday Night	44°F	Mostly Cloudy then Slight Chance Light Rain	0 to 5 mph SE	15%
Monday	63°F	Slight Chance Light Rain	0 to 5 mph S	18%
Monday Night	43°F	Chance Light Rain	0 to 10 mph SSE	26%

Forecast source: National Weather Service (api.weather.gov) for Tri-City (42.989, -123.300). Updated through the day.

Growing snapshot for Tri-City

Last spring frost

Mar 31

First fall frost

Nov 6

Growing season

221 days

Hardiness zone

More local growing data for Tri-City: nearby ZIP 97417 weather · frost dates · planting calendar · Oregon frost dates

Nearby towns & communities

Canyonville Days Creek Dillard Drain Elkton Fair Oaks Gardiner Glendale Glide Green Lookingglass Melrose Myrtle Creek Oakland Reedsport Riddle Roseburg Roseburg North Sutherlin Winchester Bay Winston Yoncalla

All Oregon locations ›

Climate data from the nearest NOAA station, Riddle, Or (7.2 mi from Tri-City). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.