AWUS81 KGYX 191739 RWSGYX Weather Summary for Maine and New Hampshire National Weather Service Gray ME 139 PM EDT Tue Aug 19 2025 A wave of low pressure tracks across southern New England Wednesday bringing chances for rain, mainly across NH and far SW Maine. High pressure builds in Thursday and remains over the area through Saturday for fair weather and warming temperatures. High pressure shifts offshore Sunday with a slow moving frontal system crossing the region Sunday night through Monday bringing widespread chances for showers. $$