Weather & Tides-June 17, 2025

NATIONAL WEATHER SERVICE REPORT 

Tuesday,  June 17th, 2025

SYNOPSIS: Increasing afternoon breezes and some fire weather concerns in southern Mendocino and Lake County early this week. Warmer temperatures and minor HeatRisk concerns mid week. Much cooler temperatures and chances for light rain Friday and through the weekend.

TODAY: 

Inland:  Sunny, with a high near 85. North wind 6 to 10 mph, with gusts as high as 18 mph. 

Along the Coast: Sunny, with a high near 64. Calm wind becoming northwest 5 to 9 mph in the afternoon. 

TONIGHT:  

Inland: Mostly clear, with a low around 51. North wind 6 to 10 mph, with gusts as high as 20 mph.

Along the Coast: Patchy fog after 5am. Otherwise, increasing clouds, with a low around 49. Northwest wind 5 to 8 mph becoming calm in the evening.

Extended Forecast:   High pressure is building as a weak trough exits eastward, bringing warming temperatures to inland valleys, with minor HeatRisk concerns midweek. By Friday, a stronger trough moves in, increasing winds (especially in Trinity, Mendocino, and Lake Counties) and raising fire weather concerns due to dry conditions and gusts over 35 mph. Rain chances rise Friday into Saturday, with a 50% chance of over 0.1 inches and potential thunderstorms and even light snow over high peaks. Cold morning temperatures and possible frost are expected in valley areas by the weekend under clearer skies.

Predicted Temperatures

Location	High Today	Low Tonight	HighTomorrow
Inland	85	51	84
Along The Coast	64	49	63

The coastal waters forecast from Point Saint George to Cape Mendocino and out to 10 nautical miles.

Today	Wind	N 5 kt, backing to NW this afternoon.
	Waves	NW 2 ft at 5 seconds and W 4 ft at 10 seconds.
Tonight	Wind	N 5 to 10 kt.
	Waves	NW 2 ft at 4 seconds and W 4 ft at 9 seconds. Patchy dense fog.

The coastal waters forecast from Cape Mendocino to Point Arena and out to 10 nautical miles. 

Today	Wind	NW 10 to 15 kt, rising to 15 to 20 kt this afternoon.
	Waves	NW 5 ft at 5 seconds and W 4 ft at 10 seconds.
Tonight	Wind	NW 20 to 25 kt.
	Waves	NW 5 ft at 5 seconds and W 4 ft at 9 seconds.

Lastly, here are the solar and lunar phases and tidal information : Today, Tuesday, June 17th, the sun rose in Shelter Cove at 5:47am and sunset will be at 8:48pm, for a total of 15 hours of sunlight. The first low tide will be at 10:25 am, at -0.1ft and the next low tide at 11:15 pm, at 2.4ft. The next high tide will be at 5:26 pm, at 5ft,  The waning gibbous moon rose in the southeast at 12:46 am and will set in the west at 12:09 pm. According to the solunar theory, today is a good day for fishing, the fish activity forecast is high.