201 FXUS61 KBOX 080659 AFDBOX Area Forecast Discussion National Weather Service Boston/Norton MA 259 AM EDT Sun Jun 8 2025 .SYNOPSIS... Generally dry and pleasant temperatures are in store for the region today. A few showers are possible on Monday, but the bulk of the rain with the next system will hold off until Tuesday. Dry and warmer weather follows for Wednesday and Thursday...but it looks to turn cooler again next weekend with perhaps a period of unsettled weather. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... Key Messages... * Areas of fog burn off by mid morning * Partly sunny today...low risk of a spot shower west of I-91 * Highs today well into the 70s...except upper 60s/near 70 coast Details... Light winds, left over low level moisture and a wet ground have all combined to result in areas of fog early this morning...some of which was locally dense in the typically prone locations. The strong June sun angle should allow this fog to burn off by mid morning...but some low clouds/fog patches may flirt with the Cape and Islands all day. Otherwise...a brief ridge of high pressure brings a mixture of clouds and sunshine today. Highs should be well into the 70s across most locations and perhaps flirting with 80 in the lower Connecticut River Valley. Onshore flow will keep high temps in the upper 60s to the lower 70s along the immediate coast. We should mention there is a low risk of a spot shower later today west of I-91 with diurnal heating...but for all intensive purposes a dry and very pleasant day of weather to close out the weekend. && .SHORT TERM /6 PM THIS EVENING THROUGH 6 PM MONDAY/... Key Messages... * A spot shower or two possible tonight into Mon...but mainly dry * Considerable clouds Mon...but peeks of sunshine too * Highs Mon in the 60s along the coast with 70s inland Details... Tonight and Monday... Shortwave energy will lift northeast into our region tonight and Mon. However...forcing is limited and a ridge of high pressure in the Canadian Maritimes will send some drier air into the region. Therefore...mainly dry weather prevails outside of a brief spot shower or two tonight and Mon. We do expect to see a fair amount of clouds from this shortwave...but peeks of sunshine on Mon too. Low temperatures tonight will be in the 50s to near 60. The high pressure system will result in onshore flow on Mon. This will hold high temps in the 60s near the coast with 70s further inland. && .LONG TERM /MONDAY NIGHT THROUGH SATURDAY/... Key Messages: * Chances for rain and a few thunderstorms on Tuesday with a cold front passage. Trending drier mid to late week. * Slightly cooler to start the week, followed by a warming trend with increased humidity. A warm front lifts over the region early in the day on Tuesday. With increasing PWATs to roughly two inches, chance for warm advection showers Tuesday morning and the afternoon. A trailing cold front swings through later Tuesday afternoon/evening with potential of downpours and embedded thunder. Drier air moves in behind the cold front on Wednesday and continues into the end of next week as mid- level ridging and surface high pressure build in. Temperature-wise, Tuesday should be similar to Monday (upper 60s to low 70s). Followed by increasing temperatures aloft Wednesday to Friday, deep mixing to 850mb, and able to tap into the +13C to +15C. Result are highs in the low to middle 80s. Dewpoints are elevated in the low 60s, leading to humid conditions. Unsettled conditions and onshore flow return heading into the weekend, bringing more chances for showers and cooler temps. && .AVIATION /07Z SUNDAY THROUGH THURSDAY/... Low - less than 30 percent. Moderate - 30 to 60 percent. High - greater than 60 percent. 06z TAF Update... Today...High confidence in trends with moderate confidence in timing. A wide range in conditions early this morning. LIFR conditions in dense fog were mixed with a lot of MVFR-IFR cigs/vsbys and even some VFR conditions. The strong June sun angle will allow for the low clouds/fog to burn off by mid morning or so...but they may still flirt with the Cape/Islands at times through the afternoon. Otherwise...VFR conditions prevail later today across the rest of the region. E winds 5 to 10 knots. Tonight...Moderate confidence. VFR conditions should dominate...but onshore flow may result in some MVFR-IFR cigs/vsbys developing toward daybreak especially near the coast as the boundary layer cools. Light NE winds. Monday...Moderate confidence. MVFR ceilings likely dominate Monday. We may see a spot shower or two...but mainly dry weather is expected. ENE winds 5-10 knots. BOS TAF...Moderate confidence in TAF. BDL TAF...Moderate confidence in TAF. Outlook /Monday Night through Thursday/... Monday Night: Mainly VFR, with areas IFR possible. Slight chance SHRA. Tuesday: Mainly IFR, with local MVFR possible. Chance SHRA, isolated TSRA. Tuesday Night: Mainly VFR, with local IFR possible. Chance SHRA. Wednesday through Thursday: VFR. Breezy. && .MARINE... Forecaster Confidence Levels: Low - less than 30 percent. Medium - 30 to 60 percent. High - greater than 60 percent. Today through Monday...High confidence. High pressure across the Canadian Maritimes will result in easterly winds today through Monday...but gradient will be weak enough to keep winds/seas below small craft advisory thresholds. The main issue for mariners will be areas of fog especially this morning. Outlook /Monday Night through Thursday/... Monday Night: Winds less than 25 kt. Areas of seas approaching 5 ft. Slight chance of rain showers. Tuesday: Winds less than 25 kt. Areas of seas approaching 5 ft. Chance of rain showers, isolated thunderstorms. Tuesday Night: Winds less than 25 kt. Areas of seas approaching 5 ft. Chance of rain showers. Wednesday through Thursday: Winds less than 25 kt. Areas of seas approaching 5 ft. && .BOX WATCHES/WARNINGS/ADVISORIES... CT...None. MA...None. RI...None. MARINE...None. && $$ SYNOPSIS...Frank/Mensch NEAR TERM...Frank SHORT TERM...Frank LONG TERM...McMinn AVIATION...Frank/McMinn MARINE...Frank/McMinn