Apex Weather

SJV Weather for Monday, June 12, to Sunday, June 18, 2017

A warm front will lift across the Valley Monday afternoon and evening as a weak disturbance moves from the west into the state setting the stage for showers and thunderstorms during the afternoon and evening. Some isolated severe storms are possible with gusty winds and small hail.

A cold front moves through the region early Tuesday followed by a strong Canadian high building in, which brings mostly clear to partly cloudy skies and cooler conditions Tuesday through Thursday night. A low-pressure system in Canada draws a warm front towards the Valley, producing a chance for showers Friday and Saturday with disturbances aloft creating chances for thunderstorm activity Saturday night into Sunday morning.

A cold front approaches later Sunday with another chance for showers and thunderstorms Sunday afternoon/evening.

Daily Weather Summary

Monday, June 12: High: low 70s. Low: upper 50s.

Mostly cloudy in the morning then overcast in the afternoon with an 80 percent chance for showers and thunderstorms, especially in the afternoon and evening. South/southeast winds 0-5 mph shift to the southwest 0-5 mph. Isolated strong to severe storms possible with gusty winds and small hail. Between one-quarter and one-half inch rainfall possible. Overnight, showers likely with a 90 percent chance for precipitation with between one-quarter and one-half inch possible. Winds shift to the northwest and increase to around 10 mph.

Tuesday, June 13: High: low 70s. Low: low-to-mid-40s.

Mostly clear with northwest winds 10-15 mph. Cool and breezy overnight with northwest winds 10-15 mph.

Wednesday, June 14: High: low-to-mid-60s. Low: low-to-mid-40s.

Partly cloudy and mild with northwest winds diminishing to 5-10 mph. Becoming mostly clear overnight with northwest winds 0-7 mph.

Thursday, June 15: High: upper 60s. Low: upper 40s.

Mostly clear with light northwest winds 0-7 mph. Overnight, increasing clouds with light southeast winds 0-7 mph. Chance for precipitation is 20 percent overnight.

Friday, June 16: High: upper 60s. Low: low 50s.

Increasing clouds in the morning becoming mostly cloudy in the afternoon with a 40 percent chance for showers. Becoming cloudy overnight with a 40 percent chance for showers. Precipitation totals between one-tenth and one-quarter inch possible. South winds 8-14 mph.

Saturday, June 17: High: low 70s. Low: mid-50s.

Cloudy with a 40 percent chance for showers and thunderstorms in the evening and overnight periods. Less than one-tenth inch rainfall with more in any thunderstorms. South winds 8-14 mph diminishing to 0-7 mph in the evening.

Sunday, June 18: High: low 70s. Low: upper 50s.

Mostly cloudy with showers likely and a chance for afternoon/evening thunderstorms. Southwest winds 8-14 mph. Decreased clouds overnight with light southwest winds.

Note: Computer model precision diminishes the further into the week the forecast projects. Check the Fiddlehead Focus for weather updates with more current information.

The Week Ahead is the work of UMFK Professor Joseph E. Becker based on personal weather station data, various computer forecast models, and information that the National Weather Service, NOAA, and other weather resources provide.

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