Waterboro, Maine 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

591
FXUS61 KGYX 141910
AFDGYX

Area Forecast Discussion
National Weather Service Gray ME
310 PM EDT Thu Aug 14 2025

.SYNOPSIS...
Widely scattered showers and thunderstorms through early
evening with a cold frontal passage. However, most locations
will likely remain dry. Friday and Saturday look to be dry at
this time with a warming trend, peaking Sunday. There will be a
chance of showers and thunderstorms on Sunday with the passage
of another cold front.

&&

.NEAR TERM /THROUGH TONIGHT/...
Cold front will finally cross the region today/tonight, bringing
an end to a stretch of upper 80s and 90s going back to Sunday.

Isolated showers and thunderstorms will continue through the
late afternoon before the front pushes off the coast. With weak
shear, the bulk of showers and storms will struggle with
organized updrafts and therefore limit intensity. Enough CAPE is
analyzed to mention a couple stronger cells capable of gusty to
strong winds, but the window in time and area in front of the
boundary is limited.

Showers and storms decrease in coverage after sunset with the
loss of daytime heating and the front pushing off the coast.
Skies begin a clearing trend west to east this evening as drier
air filters in. Light breeze will keep the surface from
decoupling, but tonight will be quite refreshing across the
mountains and foothills compared to the past week as lows dip
int the mid to upper 40s. Elsewhere, one more night in the lower
60s preempts a cooler night Friday night.

&&

.SHORT TERM /FRIDAY THROUGH FRIDAY NIGHT/...
Friday continues to look stellar with highs around normal, sunny
skies, and dry conditions. Expect a seabreeze to move inland
early afternoon but otherwise no impactful weather expected.

Overnight, clear skies, dry airmass, and calm winds will
contribute to good radiational cooling. Went lower than guidance
across much of the area, lower still in valleys and traditional
spots that take advantage of these conditions. Lows in the 50s
can be expected, with a couple readings in the mid to upper 40s
in and around the Whites.

&&

.LONG TERM /SATURDAY THROUGH THURSDAY/...
Dry and warmer weather is expected to continue through the
weekend, as a 500mb ridge builds in across the central US. An
upper-level trough over Quebec tilts down into the Canadian
Maritimes on Sunday, potentially allowing for a cold front to
move southward in the afternoon. A few storms may have the
potential to become strong over New Hampshire, with a better
instability over the CT river valley compared to the rest of the
area. Prior to the frontal passage, the weekend is expected to
see a warming trend. Highs look to be in the mid to upper 80s
Saturday and then lower 90s Sunday.

The aforementioned upper-level trough should bring lasting cooler
weather into the area, with high pressure building in for early next
week. Guidance has started to show the potential for a few isolated
showers to move through the area on Wednesday, though meaningful
rainfall is not expected at this time. High pressure returns for the
second half of the week. Dry weather next week may worsen the
drought conditions that are being felt at the moment.

&&

.AVIATION /18Z THURSDAY THROUGH TUESDAY/...
Short Term...TS and SHRA for coastal terminals this late
afternoon and evening. These dissipate after sunset, with
decreasing cloud coverage and VFR conditions. Some uncertainty
if valley fog again forms tonight given drier airmass moving in.
Have alluded to this at LEB and HIE. VFR otherwise on Friday and
Friday night.

Long Term...
VFR generally expected through the entire period. A few brief
windows of lowered restrictions are possible on Sunday evening as a
few thunderstorms move through the area, and then on Wednesday with
a couple showers possible.

&&

.MARINE...
Short Term...Cold front crosses the waters this evening. A
couple showers and thunderstorms are possible, but will
generally be weakening over the waters. Winds shift northerly
behind the front, with some gusts to 15 kt. Waves remain 1 to 3
ft as high pressure moves in Friday and Friday night.

Long Term...
Light and variable winds are expected Saturday morning. By Saturday
afternoon, winds pickup from the south, with 7-12kt winds expected.
Winds shift to southwesterlies by Sunday morning, with wind speeds
remaining in the 7-12kt range. By Monday morning, winds shift to
northerlies at 10-17kts as TC Erin moves well offshore. Seas will
remain at 2-4ft through the entire forecast period.
&&

.GYX WATCHES/WARNINGS/ADVISORIES...
ME...None.
NH...None.
MARINE...None.

&&

$$


NEAR TERM...Cornwell
SHORT TERM...Cornwell
LONG TERM...Palmer