10 Day. Weather Alerts-Coos Bay, OR. Coos Bay Temperature Yesterday. Get the monthly weather forecast for Coos Bay, OR, including daily high/low, historical averages, to help you plan ahead. 1 of 2. Action Recommended. Past Weather in Coos Bay — Graph °F. Radar. A PacNW storm spreads precip with snow in the mountains across the Northwest. See weather overview. Video. In Coos Bay, the summers are comfortable, dry, and mostly clear and the winters are cold, wet, and mostly cloudy. Coos Bay, OR Weather. Today. Hazardous Seas Warning from TUE 10:00 PM PST until THU 4:00 AM PST. Get the monthly weather forecast for Coos Bay, OR, including daily high/low, historical averages, to help you plan ahead. The average minimum temperature will be 6°C, dipping to its lowest on the morning of Tuesday 1st at 4°C. °F. High & Low Weather Summary for the Past Weeks Temperature Humidity Pressure; High: 64 °F (Nov 16, 11:56 am) … Snow in the 4 Corners area higher terrain spreads into the South High Plains. Everything you need to be ready to step out prepared. Weather for the next 14 days in Coos Bay, Oregon state, USA Weather in Coos Bay for today, Saturday, 31 Oct 2020 Sunrise: 07:50 Sunset: 17:58 Moonrise: 18:23 Moonset: 07:44 UV Index: 2 Persistant offshore winds will keep fire weather threats Critical in Southern California and the Lower Colorado River Basin. Hourly. Get the Coos Bay, OR local hourly forecast including temperature, RealFeel, and chance of precipitation. Strong to isolated storms and heavy rain may develop in the western Gulf states along a lingering boundary. 25. See Hour-by-hour Forecast for upcoming weather. Last 2 weeks of weather Coos Bay Extended Forecast with high and low temperatures. Average Weather in Coos Bay Oregon, United States. Long range weather outlook for Coos Bay includes 14 day forecast summary: Taking a look at Coos Bay over the coming two weeks and the average daytime maximum temperature will be around 12°C, with a high for the two weeks of 15°C expected on the afternoon of Thursday 3rd. Maximum temperature yesterday: 53 °F (at 12:56 pm) Minimum temperature yesterday: 32 °F (at 7:41 am) Average temperature yesterday: 39 °F.