As August continues to unfold, weather patterns across the U.S. are poised for a shift with early signs of a weak La Niña influencing late summer and fall. POW Ponder on Weather took look into what this means for temperatures and precipitation across the United States. Here’s a breakdown of the forecast for the coming months.
Temperature Outlook: A Mixed Bag Across the U.S.
The transition from ENSO-neutral to a weak La Niña by October 2025 will drive varied temperature trends. The Pacific Northwest and northern U.S. can expect cooler-than-average conditions, especially in November, as the polar jet stream shifts southward. Meanwhile, the southern U.S., including the Desert Southwest, Southern Plains, and Southeast, will likely experience above-average temperatures through September and October. The central U.S., including the Ohio Valley and Mid-Atlantic, may see near-normal temperatures, with occasional cool shots diving into the Southeast by late fall.
Precipitation Patterns: Wet North, Dry South
La Niña’s influence will reshape precipitation across the country. The Pacific Northwest is set for increased rainfall starting in November, ideal for early snowpack in resorts like Mt. Baker and Crystal Mountain. Conversely, expect dried conditions in the Desert Southwest, Southern California, Texas, and Florida, potentially exacerbating drought concerns. The eastern seaboard and Gulf Coast could see heavier rains due to active tropical systems, boosting flood risks but enhancing fall foliage vibrancy.
Implications for Skiers and Snowboarders
For skiers and snowboarders, a weak La Niña offers promising snow prospects in some regions. The northern Rockies, including Jackson Hole and Big Sky, could see above-average snowfall thanks to an active polar jet stream. Utah’s resorts, like Alta and Snowbird, sit in a transition zone, potentially seeing banner snow years if storm tracks dip south. The Northeast and Great Lakes could benefit from lake-effect snow, making Vermont and New Hampshire resorts like Killington and Stowe prime early-season destinations.
Planning Your Fall and Early Winter Adventures
With La Niña shaping a cooler, wetter north and a warmer, drier south, outdoor plans need flexibility. Skiers should target northern resorts for early powder, while hikers in the Southwest can enjoy mild, dry conditions. Stay updated with sources like the National Oceanic and Atmospheric Association for the latest shifts, as La Niña’s strength could evolve by December.
