Barre, Vermont 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

700
FXUS61 KBTV 050512
AFDBTV

Area Forecast Discussion
National Weather Service Burlington VT
112 AM EDT Tue Aug 5 2025

.SYNOPSIS...
Surface high pressure remains the dominant feature this week.
Isolated, terrain driven showers may deliver brief downpours near
mountain ridges on Tuesday and Wednesday, but the majority will
remain within an ongoing dry spell. Hazy conditions will
continue with only slow improvement over the next several days.
Somewhat above normal temperatures in the 80s during the day are
expected, but near normal temperatures at night in the 50s to
lower 60s will continue due to comfortable humidity levels.
Approaching the weekend, temperatures will approach upper 80s to
lower 90s again and become muggy early next week.

&&

.NEAR TERM /THROUGH WEDNESDAY/...
As of 138 PM EDT Monday...Smoke is apparent on satellite
imagery, and it remains the main near term concern. Poor air
quality will linger as a cold front slowly pushes south of the
region. This cold front will help clear the air some, but it
will fail to completely pass south before it washes out. The
forcing along the boundary is weak, and it is moisture starved.
It could eke out a handful of showers along the international
border, but that`s about it. Temperatures in the 80s will settle
back towards seasonal normals in the lower 50s to lower 60s
tonight.

&&

.SHORT TERM /WEDNESDAY NIGHT/...
As of 138 PM EDT Monday...On Tuesday, some moisture advection
off the maritimes and a subtle upper trough should be enough to
allow for some convective development down south. Areas north
will remain within a dry air mass. With marginal instability,
convection will initiate along terrain features and then very
slowly drift. Although the ingredients for heavy rain are
largely absent, slow motions suggest brief downpours are
possible. The HREF highlights 1" in 3 hour probabilities are
about 30-50% across the southern Greens. Temperatures slightly
above normal in the upper 70s to mid 80s will continue.
Convection will wind down after sunset, with somewhat warmer
temperatures in the mid 50s to mid 60s, warmest near Lake
Champlain.

The forecast picture is very similar for Wednesday. The maritime air
mass pivots towards northern New York. Recycled flow could bring
back some of the smoke pushed southwards by today/Monday`s front,
but concentration of smoke will have dissipated some by Wednesday.
The best moisture shifts towards northern New York, but model PWATs
and Theta E values suggest that the downpour potential for the
Adirondacks on Wednesday are lower.

&&

.LONG TERM /THURSDAY THROUGH MONDAY/...
As of 138 PM EDT Monday...Beyond Wednesday, there will be one
more day of isolated, hit-or-miss afternoon showers and
thunderstorms before a strong upper high builds towards the end
of the week. Especially over the weekend, temperatures will
approach the upper 80s to lower 90s again. However, humidity
values won`t increase until the early part of next week once the
upper high shifts offshore. Rain chances come down to less than
15 percent as the upper high develops, and then increase ahead
of the next system towards next Tuesday.

&&

.AVIATION /06Z TUESDAY THROUGH SATURDAY/...
Through 06Z Wednesday...Challenging forecast for the next
several hours as lingering smoke/haze and developing mist/fog
overlap. Currently have several sites VFR, and a handful of
others experiencing MVFR level visibilities 3-5 miles. In
addition to the mist restricting visibilities, site SLK also has
a cloud deck at about 2500-3000 feet above ground level. Models
and climatology both indicate conditions will likely
deteriorate at SLK, MPV, and EFK throughout the next few hours.

However, smoke/haze can sometimes complicate patterns that seem
predictable, and it is notable that last night EFK remained at
MVFR levels for much of the time. Have utilized a TEMPO at EFK
for IFR tonight, with SLK and MPV the more likely of the three
to have sustained IFR conditions. Most favorable time for
mist/fog is now through 11Z-13Z Tuesday. As a weak cold front
washes out over central Vermont, expect RUT and possibly MPV may
have HZ persist during the daytime with an associated chance
for MVFR visibility.

Winds will be calm overnight. After 12z, northeast to northwest
winds around 5 knots will resume, except stronger at MSS where
10 knots sustained through much of the day is expected out of
the northeast. A few showers, and possibly thunderstorms, will
develop around mountain summits near SLK, RUT, and MPV after
18Z, but are unlikely to impact these TAF terminals.

Outlook...

Tuesday Night: VFR. NO SIG WX.
Wednesday: VFR. Slight chance SHRA, Slight chance TSRA.
Wednesday Night: VFR. NO SIG WX.
Thursday: Mainly VFR, with local MVFR possible. Slight chance
SHRA, Slight chance TSRA.
Thursday Night: VFR. NO SIG WX.
Friday: VFR. NO SIG WX.
Friday Night: VFR. NO SIG WX.
Saturday: VFR. NO SIG WX.

&&

.BTV WATCHES/WARNINGS/ADVISORIES...
VT...None.
NY...None.

&&

$$
SYNOPSIS...Haynes
NEAR TERM...Haynes
SHORT TERM...Haynes
LONG TERM...Haynes
AVIATION...Storm