National Weather Service United States Department of Commerce

Looking ahead into September in Alamosa, the average high and low temperatures of 78 degrees and 42 degrees on September 1st, cool to 70 degrees and 32 degrees by the end of the month.  The average temperature for the month of September in Alamosa is 55.9 degrees.  Alamosa averages 0.98 inches of precipitation and 0.5 inches of snow through the month of September.  On average,  Alamosa can see the 1st freeze of the season by September 9th.           

In Colorado Springs, the average high and low temperatures of 81 degrees and 54 degrees on September 1st, cool to 72 degrees and 43 degrees by the end of the month. The average temperature for the month of September in Colorado Springs is 63.0 degrees.  Colorado Springs averages 1.35 inches of precipitation and 0.2 inches of snow through the month of September.           

In Pueblo, the average high and low temperatures of 88 degrees and 56 degrees on September 1st, cool to 77 degrees and 43 degrees by the end of the month. The average temperature for the month of September in Pueblo is 66.6 degrees. Pueblo averages 0.65 inches of precipitation and 0.2 inches of snow through the month of September.    

Below is the Climate Prediction Center's (CPC) temperature and precipitation outlook for September of 2026, which leans to above normal temperatures and precipitation across south central and southeast Colorado, save for equal chances of above, below and near normal precipitation across southeast Colorado.