Winter 2026 Forecast: Everything We Know About the Upcoming Season

Forecasters are warning that the winter 2026 forecast could bring unusual and extreme weather across the U.S. A potential sudden stratospheric warming event combined with the ongoing La Niña pattern may drive colder temperatures and snow in unexpected regions. Scientists say November could be a decisive month for shaping the season ahead.

Climatologist Judah Cohen of MIT explained that if the stratosphere warms suddenly above the North Pole, it could push cold air southward, creating rare winter conditions in parts of the U.S. This event, known as sudden stratospheric warming (SSW), is rare in November and would be unprecedented in the satellite era. The polar vortex’s movement during this time will strongly influence surface weather, while La Niña helps steer cold air patterns.

Key Details of the Winter 2026 Forecast

The Farmers’ Almanac predicts a wild and unpredictable winter 2025-2026. The Midwest, including Ohio and Wisconsin, could see colder-than-normal temperatures with multiple snow events. In Ohio, the snowiest periods are likely in mid-December and early February, which could lead to hazardous travel and higher heating demands. Wisconsin may experience classic winter conditions, with frequent snow and cold snaps.

Nebraska may have mixed winter conditions, including occasional cold spells and above-average precipitation, while Oregon could face wetter-than-average conditions with mountain snow and persistent storms. Pennsylvania is flagged for above-average snowfall in mountains and colder periods statewide. Even typically mild states like Texas and Alabama may see isolated freezing events or snow, despite an overall warmer winter in these regions.

According to Cohen, the severity of cold will depend on the interaction between the stratospheric warming event and the polar vortex. If the coupling is strong, the U.S. could experience extended periods of cold and snow starting in December. If the coupling is weak, the winter may be overall mild.

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Broader Implications of the Forecast

Residents across affected states should prepare for variable winter conditions. Heating systems should be checked early, especially in Ohio, Wisconsin, and Pennsylvania. Snow-removal equipment is recommended in high-snow areas. Travelers should be ready for rapid shifts in weather when moving between regions, from Texas and Alabama to Nebraska and the Midwest.

The combination of La Niña and potential polar vortex disruptions underscores the uncertainty of this winter. Meteorologists emphasize that flexibility and preparedness will be key. Communities may face snow, rain, or sudden cold snaps with little warning, highlighting the importance of monitoring weather updates regularly.

Overall, the winter 2026 forecast points to a season of extremes and unpredictability. From potential snowstorms in the Midwest to unusual chill in the South, residents and travelers should plan carefully and stay informed as the season unfolds.

FYI (keeping you in the loop)-

Q1: How does La Niña affect winter weather?

La Niña typically brings colder and wetter conditions to the northern U.S. and warmer, drier conditions to the South. It influences the jet stream, steering weather patterns across the country.

Q2: What is a sudden stratospheric warming event?

A sudden stratospheric warming (SSW) is a rapid rise in temperature in the polar stratosphere. It can disrupt the polar vortex, pushing cold air south and affecting surface weather in the U.S.

Q3: Which states are expected to be coldest this winter?

Ohio, Wisconsin, and Pennsylvania are forecast to experience colder-than-average temperatures and significant snowfall. The Midwest and Great Lakes region could see the most classic winter conditions.

Q4: Could southern states see snow this winter?

Yes, even typically mild states like Texas and Alabama may see isolated freezing events or rare snow, although the overall winter there is expected to be milder.

Q5: When could winter cold begin in 2025-2026?

Extended cold and snow could begin in December if the stratospheric warming strongly influences the jet stream and polar vortex behavior.