UPDATE: The current freeze warning for Southwest Washington will be expiring at 9 a.m.

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The warning had been issued for Olympia and Southern Puget Sound, Lowlands of Lewis and Southern Thurston counties, Middle Chehalis River Valley, Willapa and Black Hills and Southern Hood Canal.

"Temperatures will continue increasing throughout this morning, ending the threat for continued freezing conditions," says the NWS Seattle WA.

The warning is in effect until 9 a.m.

Freeze watch or warning - this is what it means

Freeze warnings are issued from May to October (but can be extended if necessary), when low temperatures are expected to be 29-32 degrees. If there is a potential for temperatures to fall into these thresholds, a freeze watch may be issued a few days ahead of time.

According to the NWS, if a freeze warning or watch is issued for your area, there is little you can do to protect plants. If you can move your sensitive plants inside, do so because the freeze will likely kill them, depending on the severity of conditions.

Source: The National Weather Service

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This story was originally published April 15, 2026 at 9:18 PM.