St. John Valley weather for June 5-11, 2024

Joseph E. Becker, Special to The County
5 months ago

3-Day Outlook: Wed. June 5 – Fri. June 7

Today looks mostly cloudy to partly sunny with a chance of some isolated afternoon showers / thunderstorms as a weak disturbance circulating around a near stationary low pressure south of Newfoundland moves over the region. Some isolated strong storms featuring gusty winds and hail are possible in southern portions of Maine, should anyone from the Valley need to be traveling that way today. Temperatures climb into the lower 80s followed by partly cloudy skies tonight with temperatures falling into the mid-50s.

Mostly sunny skies are expected to start the day Thursday with a chance of afternoon showers for the SJV. Daytime highs reach the lower 80s with partly cloudy skies and a chance of scattered showers Thursday night with lows in the middle 50s.

A slow-moving occluded front approaches Thursday night into Friday bringing increasing chances of showers to the Saint John Valley Friday, especially in the afternoon. Mostly cloudy skies with a good chance of showers is expected Friday night. Daytime highs in the mid-70s are followed by overnight low in the lower 50s.

Daily Summary

Today: Mostly cloudy this morning, then partly sunny with isolated thunderstorms this afternoon. Highs in the lower 80s. Northeast winds around 5 mph. Chance of precipitation 20 percent.

Tonight: Partly cloudy with isolated thunderstorms in the evening, then mostly clear after midnight. Patchy fog after midnight. Lows in the mid 50s. Light and variable winds, becoming southeast around 5 mph after midnight. Chance of precipitation 20 percent.

Thursday: Mostly sunny in the morning, then partly sunny with a slight chance of showers in the afternoon. Highs in the upper 70s. Southeast winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 20 percent.

Thursday Night: Partly cloudy. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the mid 50s. Southeast winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 50 percent.

Friday: A chance of showers in the morning, then showers likely in the afternoon. Highs around 70. East winds 10 to 15 mph. Chance of rain 70 percent.

Friday Night: Showers likely. Patchy fog after midnight. Lows in the lower 50s. Chance of rain 70 percent.

4-7 Day Outlook: Sat. June 8 – Tue. June 11

An upper-level low will mover over the Valley for much of the period with hard to time/locate shower activity expected across the region for the period (given the dry conditions in the Allagash, not entirely unwelcome either). Instability looks to be enough to trigger some thunderstorm activity across the north, particularly Sunday. Currently, showers are likely Saturday through Monday with daytime highs in the mid-60s Saturday and Sunday, the low 70s Monday, and the middle 70s Tuesday. Overnight temperatures dip into the lower 50s for the period.

Daily Summary

Saturday: Patchy fog in the morning. Showers likely. Highs in the mid 60s. Chance of rain 70 percent.

Saturday Night: Showers likely. Lows around 50. Chance of rain 70 percent.

Sunday: Showers likely. A chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 70 percent.

Sunday Night: Mostly cloudy in the evening, then becoming partly cloudy. Showers likely in the evening. A chance of thunderstorms. Lows in the upper 40s. Chance of rain 70 percent.

Monday: Partly sunny with a chance of showers in the morning, then mostly cloudy with showers likely in the afternoon. Highs in the upper 60s. Chance of rain 70 percent.

Monday Night: Partly cloudy. Showers likely in the evening. Lows in the upper 40s. Chance of rain 60 percent.

Tuesday: Partly sunny with a 50 percent chance of showers. Highs in the lower 70s.

Tuesday Night: Partly cloudy, with a low in the lower 50s.

8-14 Day Regional Climate Trends: Wed. June 5 – Mon. June 10

Above normal temperatures / Above normal precipitation

Note: Computer model precision diminishes the further into the week the forecast projects. Check The County.me or the National Weather Service Caribou, ME at for weather updates with more current information for the Saint John Valley.

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.