27 40% 0.035 in 83° / 66° 9 - 22 mph. Long range weather outlook for Russellville includes 14 day forecast summary: The outlook for Russellville in the two weeks ahead shows the average daytime maximum temperature will be around 32°C, with a high for the two weeks of 34°C expected on the afternoon of Tuesday 26th. Russellville, AL Weather Forecast and Conditions - The Weather Channel | Weather.com Russellville, AL As of 6:49 pm CDT 89° Sunny Day 96° • Night 73° Heat Advisory Severe Storm Risk.