SnowBrains Forecast: Midweek Mountain Snow and Colder Air for Colorado

Snowfall forecast map
Credit: ECMWF

Colorado’s snow forecast brings a welcome midweek cooldown, with accumulating mountain snow from Tuesday through Friday and the strongest opportunity on Wednesday and Thursday. The higher northern and central mountains look favored, while warmer beginnings and larger uncertainty complicate the San Juans. The ski areas covered here remain closed for lift-served skiing, so this is an early-season base-building opportunity ahead of their planned openings.

Monday, October 12, remains too warm for meaningful accumulation at these mountain locations, even as showers continue across portions of western Colorado. Much of the central and northern resort terrain stays mostly dry, with afternoon temperatures in the 40s and lower 50s. Strong southwest winds remain consequential on exposed ridges, where gusts can reach 40-60 mph early Monday. Tuesday brings increasing moisture and gradual cooling, with precipitation developing earlier in the San Juans and expanding into the northern high country later. Snow levels initially hover around 11,000 feet during precipitation, keeping lower elevations wet and the first high-elevation snow very dense. The more widespread transition to accumulating snow comes Tuesday night into Wednesday.

Wednesday and Thursday provide the clearest opportunity for a useful coating of mountain snow, with lingering light showers possible through Friday, October 16. Guidance broadly agrees on the cooling and midweek precipitation, although the arrival of the steadiest snow varies from Tuesday night into Wednesday afternoon. Snow levels fall toward 8,000-10,000 feet on Wednesday and generally lower again Thursday, expanding accumulation below the highest terrain. Arapahoe Basin, Winter Park, and Loveland lead the forecast with 5-8 in, while many other higher mountain locations receive 2-6 in. Amounts have substantial spread in the San Juans and around Steamboat, so confidence is stronger in the colder, snowier pattern than in the exact local ranking. Initial snow will be wet and dense, becoming less dense as temperatures settle into the 20s overnight and near freezing during the day at higher elevations. Winds ease considerably behind the early-week surge, helping sheltered accumulations stay in place, although lower slopes can still struggle to retain snow during warmer daytime periods.

The weekend favors a drier, warmer break before another possible precipitation period around Tuesday, October 20, through Thursday, October 22. Rising daytime temperatures will encourage settling and melting, particularly on lower and sunnier terrain, while higher shaded slopes have better preservation prospects. Extended guidance offers broad support for renewed precipitation and cooling next week, but differs substantially on timing, intensity, and duration. The broader pattern still favors above-normal temperatures, with precipitation chances potentially increasing later in the month. That leaves another mountain snowfall opportunity worth watching, without enough consistency yet for specific accumulation promises.

Colorado Snow Forecast Resort Totals (Tue Oct 13 – Fri Oct 16)


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