Every forecast across The Mahoning Valley, highway-clear.
Official National Weather Service forecasts for the Mahoning Valley — five counties along the Pennsylvania line, from Youngstown and Warren north to Ashtabula and the lakeshore, and south through East Liverpool to Steubenville and the Ohio River.
Every Ohio region shares one system — the same maps, the same live radar, the same climate record. Ashtabula County is the snowiest ground in Ohio and it is not close: the longest fetch on Lake Erie ends right there, and the hills behind it take what the lake gives. Youngstown sits far enough inland to miss the worst of it and gets the cold instead, and the river counties to the south run their own valley fog most of the autumn.