DENVER (CBS4) – After gorgeous fall weather for Friday and most of Saturday, plan a sharp change for Halloween on Sunday. Temperatures will be cool and light cold rains are possible.
A cold front will hit Colorado late Saturday afternoon. Before the front arrives, temperatures will be fairly mild for the end of October with temperatures above 60 and below 70 at lower elevations on Friday and slightly cooler temperatures on Saturday.
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Meanwhile, Sunday will be at least 20 to 25 degrees cooler with high temperatures struggling to reach the middle and upper 40 degrees around Denver, Boulder and Fort Collins.
It should never be over 45 degrees during the Broncos game on Sunday afternoon, and temperatures should be closer to 40 degrees when the youngsters head to Trick-or-Treating on Sunday night. It will be even colder for older children in their thirties probably after 7 p.m.
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In terms of precipitation, humidity is expected to be limited in Colorado until at least midnight Sunday night. And so if it’s raining late on Sunday, it should be very light. Temperatures should not be cold enough below 6,000 feet to withstand the snow before trick-or-treat time. And if it snows in Denver until Monday morning, no accumulation is expected at this time.
The best chance of precipitation on Sunday night will be in Wyoming and western Nebraska where there is expected to be snow. The build-up should be minor, but Trick-or-Treaters in Cheyenne is much more likely to get wet than in Denver.
Either way, anyone planning on going out on Sunday night should be prepared for the cold. It will be colder than Halloween last year, but not as cold as in 2019. Temperatures were only in the 20s that year and it was actually much warmer than earlier in the day. Denver set a record with 7 degrees in the morning on October 31, 2019.
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Beyond Sunday, cooler-than-normal weather is expected to dominate most of Colorado for most of next week. The occasional chance of rain and snow is also expected, but it still seems unlikely that Denver will experience the first snowfall of the season until at least Wednesday. And even in the mountains, the amounts of snow should be low.