Average June Temperatures for Oregon

Average temperatures for June at cities, towns, parks and lakes throughout Oregon are listed below in degrees Fahrenheit and Celsius.

You can jump to a separate table for each region of the state: Oregon Coast, Willamette Valley, Cascade Mountains, Central Oregon and Eastern Oregon.

The tables give the normals for maximum and minimum temperatures based on weather data collected from 1991 to 2020 by the US National Centers for Environmental Information.

Oregon Coast

Average June temperatures
High °F	Low °F	Place	High °C	Low °C
64	51	Astoria	18	10
65	51	Brookings	18	11
65	50	Gold Beach	19	10
64	49	Honeyman State Park	18	9
61	49	Newport	16	9
64	51	North Bend	18	11
64	51	Port Orford	18	11
62	50	Seaside	17	10
64	48	Tillamook	18	9

Willamette Valley

Average daily temperatures in June
High °F	Low °F	Place	High °C	Low °C
74	49	Corvallis	23	9
74	48	Eugene	23	9
76	52	Lebanon	24	11
74	53	Portland	23	12
75	51	Salem	24	10

Cascade Mountains

June temperatures: daily averages
High °F	Low °F	Place	High °C	Low °C
57	34	Crater Lake Park	14	1
71	51	Detroit Lake Dam	22	11
59	41	Government Camp	15	5
81	51	Grants Pass	27	10
68	40	Howard Prairie Lake Dam	20	5
76	41	Klamath Falls	25	5
75	44	Lakeview	24	7
77	47	McKenzie Bridge	25	8
82	52	Medford	28	11
79	52	Roseburg	26	11
69	49	Three Lynx	21	9
76	47	Toketee Falls	25	8
71	42	Wickiup Reservoir Dam	22	5

Central Oregon

Average June temperatures
High °F	Low °F	Place	High °C	Low °C
74	42	Bend	23	6
74	51	Hood River	23	11
75	41	Madras	24	5
79	53	The Dalles	26	12

Eastern Oregon

Average June temperatures
High °F	Low °F	Place	High °C	Low °C
72	40	Hart Mountain Antelope Refuge	22	5
77	50	Heppner	25	10
75	49	La Grande	24	9
84	48	Lake Owyhee Dam	29	9
75	44	Malheur National Wildlife Refuge	24	7
82	54	Ontario	28	12
80	51	Pendleton	26	11
70	36	Seneca	21	2
79	43	Summer Lake	26	6

Average Temperatures for Oregon in June

Oregon Coast

Willamette Valley

Cascade Mountains

Central Oregon

Eastern Oregon

Reference

More Oregon Weather Information