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Denver's Monthly Weather Summary for September 2026

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- National Water Prediction Service (NWPS)
- Logan County: Changes to South Platte River Forecasts
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Still Warm Today

September 2026 Summary

Above normal temperatures will continue today, with highs in the low to mid 80s across the plains this afternoon. A few showers are possible across the mountains, with partly cloudy skies elsewhere

September 2026 was an abnormally warm one, ending up the 4th warmest September on record for Denver (records began in 1872). Precipitation came in above normal at the official reporting station at 2.23" (normal is 1.35"), while below normal precipitation was aboved in the northwest portions of metro Denver, and much above normal precipitation fell in the southeast Denver suburbs. No snow fell in the month of September for the 6th straight year.