Wednesday, May 20-Friday, May 22
A warm front associated with low pressure in Québec continues to lift north of the Saint John Valley with the area in the warm sector of an approaching cold front. Temperatures are expected to rise into the mid- to upper 70s today with south-southwest wind 5-10 mph in the morning then becoming west and increasing to 15-20 mph in the afternoon with gusts in the 30-35 mph range possible. A slight chance of showers is expected as the cold front moves through today.
High pressure centered over the Great Lakes will build east into the Valley later today and tonight with northwest winds 10-15 mph this evening with gusts in the 20-25 mph range with winds falling to around 10 mph overnight. Notably colder air will move into the SJV tonight with lows falling into the middle 30s.
Cooler air will continue to move into the region behind the cold front Thursday and remain in place through Saturday night with near freezing temperatures possible early Friday and Saturday mornings across the Valley.
Thursday features mostly sunny skies with a high in the low 50s. Northwest wind around 10-15 mph with gusts 20-25 mph. Mostly clear skies continue Thursday night with a low in the middle 30s and west wind 0-5 mph.
For Memorial Day weekend, high pressure slides over the region Friday into Saturday with mostly clear skies continuing Friday into Friday night. High in the low 60s with northwest wind 10-15 mph gusting 20-25 mph at times. Friday night, mostly clear skies with temperatures in the low 30s and northwest wind 0-7 mph.
Saturday, May 23-Tuesday, May 26
High pressure brings mostly sunny skies Saturday with a high in the mid-60s. Light northwest winds are expected. For Saturday night, partly cloudy skies develop with lows in the upper 30s and north wind 0-7 mph.
Sunday, mostly sunny and mild conditions are expected with a high in the upper 60s and light southeast wind. Sunday night, clouds increase with a 50% chance of showers after midnight. Temperatures in the lower 40s with south wind 0-7 mph.
Low pressure slides near or south of the Gulf of Maine Memorial Day with a trough/cold front moving through the Valley Monday into Tuesday. Showers are likely Monday afternoon with a high in the upper 50s to near 60 with a 60% chance of precipitation. Monday night, mostly cloudy skies with a 40% chance of showers and a low in the middle 40s expected.
Mostly cloudy skies Tuesday morning become partly sunny in the afternoon with a high in the mid- to upper 60s. A 40% chance of showers is expected. Tuesday night, partly cloudy skies with a 30% chance of showers and a low in the mid-40s.
Daily Forecast
Today: Mostly sunny. Isolated showers this morning. Highs in the mid-70s. Temperature falling into the lower 70s this afternoon. West winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 20 percent.
Tonight: Mostly clear. Much cooler with lows in the mid-30s. Northwest winds 15 to 20 mph. Gusts up to 35 mph in the evening.
Thursday: Sunny. Much cooler with highs in the lower 50s. Northwest winds 10 to 15 mph with gusts up to 25 mph.
Thursday Night: Mostly clear. Lows in the lower 30s. Northwest winds 5 to 10 mph. Gusts up to 25 mph in the evening.
Friday: Sunny. Highs in the upper 50s. Northwest winds 10 to 15 mph with gusts up to 25 mph.
Friday Night: Mostly clear. Widespread frost after midnight. Cold with lows in the lower 30s.
Saturday: Areas of frost in the morning. Sunny. Highs in the mid-60s.
Saturday Night: Partly cloudy. Lows in the upper 30s.
Sunday: Mostly sunny. Highs in the mid-60s.
Sunday Night: Mostly cloudy. A chance of showers after midnight. Lows in the lower 40s. Chance of rain 50 percent.
Memorial Day: Showers likely. Highs in the upper 50s. Chance of rain 60 percent.
Monday Night: Mostly cloudy. A chance of showers in the evening. Lows in the lower 40s. Chance of rain 50 percent.
Tuesday: Partly sunny. A chance of showers in the afternoon. Highs in the mid-60s. Chance of rain 40 percent.
Tuesday Night: A chance of rain showers in the evening. Mostly cloudy. Lows in the mid-40s. Chance of rain is 20 percent.
Weather Notice: The weekly forecast, by UMFK Professor Joseph E. Becker, is based on available computer models and data and may not reflect current conditions or later forecast updates. Check The County.me or the National Weather Service Caribou, Maine for the most recent weather information for the Saint John Valley.
