As a storm responsible for days of downpours and flash flooding dissolves, warmer and more humid air will expand in the eastern United States by the end of the week. Showers and thunderstorms can still cause travel and outdoor issues, AccuWeather ...

A powerful surge of Arctic air is scheduled to spill southward into the Midwest and much of the eastern United States over the next 10 days. Prepare for round after round!

A polar push may be ahead. The weather pattern will be active through the first half of December across the central and eastern United States, with rounds of Arctic air arriving as the polar vortex shifts. Storms, some of which may bring snow, are expected ...

A brutal heat wave has gripped the eastern part of the United States as tens of millions of people sweltered in record high temperatures on Tuesday. A climate phenomenon called a "heat dome" has sent temperatures soaring to dangerous triple digits in some ...

This week is delivering the hottest temperatures of the year so far to much of the eastern United States. See detailed maps about the latest heat index forecasts. Note: Forecast data is as of 7:17 a.m. Eastern on January 17, 2026. By Nazaneen Ghaffar ...