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Fairmont, West Virginia 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Fairmont WV
National Weather Service Forecast for: Fairmont WV
Issued by: National Weather Service Pittsburgh, PA
Updated: 1:03 pm EDT Jul 17, 2025
 
This
Afternoon
This Afternoon: Showers and thunderstorms likely, mainly after 3pm.  Mostly cloudy, with a high near 87. West wind around 10 mph, with gusts as high as 21 mph.  Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
T-storms
Likely

Tonight

Tonight: Showers and thunderstorms likely, mainly before midnight.  Patchy fog after 1am.  Otherwise, mostly cloudy, with a low around 69. Southwest wind around 6 mph becoming calm  in the evening.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
T-storms
Likely then
Chance
T-storms and
Patchy Fog
Friday

Friday: A chance of showers and thunderstorms, mainly after 2pm.  Patchy fog before 11am.  Otherwise, partly sunny, with a high near 80. Calm wind.  Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
Showers and
Patchy Fog
then Chance
T-storms
Friday
Night
Friday Night: A chance of showers and thunderstorms, mainly after 2am.  Patchy fog after 10pm.  Otherwise, mostly cloudy, with a low around 68. Calm wind.  Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
T-storms and
Patchy Fog

Saturday

Saturday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 11am.  Patchy fog before 7am. High near 82. Calm wind becoming southwest 5 to 7 mph in the afternoon.  Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Showers and
Patchy Fog

Saturday
Night
Saturday Night: Showers and possibly a thunderstorm.  Low around 69. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Showers


Sunday

Sunday: A chance of showers, then showers and possibly a thunderstorm after 2pm.  High near 82. Chance of precipitation is 80%.
Chance
Showers then
Showers

Sunday
Night
Sunday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am.  Patchy fog after 9pm. Low around 66. Chance of precipitation is 80%.
Showers and
Patchy Fog
then Chance
T-storms and
Patchy Fog
Monday

Monday: A chance of showers after 2pm.  Areas of fog before 10am.  Otherwise, mostly sunny, with a high near 83. Chance of precipitation is 30%.
Areas Fog
then Chance
Showers

Hi 87 °F Lo 69 °F Hi 80 °F Lo 68 °F Hi 82 °F Lo 69 °F Hi 82 °F Lo 66 °F Hi 83 °F

Flood Watch
Hazardous Weather Outlook
 

This Afternoon
 
Showers and thunderstorms likely, mainly after 3pm. Mostly cloudy, with a high near 87. West wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
 
Showers and thunderstorms likely, mainly before midnight. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 69. Southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
 
A chance of showers and thunderstorms, mainly after 2pm. Patchy fog before 11am. Otherwise, partly sunny, with a high near 80. Calm wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
 
A chance of showers and thunderstorms, mainly after 2am. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
 
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 11am. Patchy fog before 7am. High near 82. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday Night
 
Showers and possibly a thunderstorm. Low around 69. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
 
A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 82. Chance of precipitation is 80%.
Sunday Night
 
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Patchy fog after 9pm. Low around 66. Chance of precipitation is 80%.
Monday
 
A chance of showers after 2pm. Areas of fog before 10am. Otherwise, mostly sunny, with a high near 83. Chance of precipitation is 30%.
Monday Night
 
A chance of showers before 8pm. Partly cloudy, with a low around 66. Chance of precipitation is 30%.
Tuesday
 
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 40%.
Tuesday Night
 
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 40%.
Wednesday
 
A chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 40%.

 

Forecast from NOAA-NWS for Fairmont WV.

Weather Forecast Discussion
413
FXUS61 KPBZ 171650
AFDPBZ

Area Forecast Discussion
National Weather Service Pittsburgh PA
1250 PM EDT Thu Jul 17 2025

.SYNOPSIS...
Frontal passage will favor showers and thunderstorms south of
Pittsburgh through Friday while northern locales experience
drier and more seasonable weather. Widespread thunderstorm
chances return Saturday into next week as the active weather
pattern continues.

&&

.NEAR TERM /THROUGH TONIGHT/...
KEY MESSAGES:

- Frontal passage will support thunderstorms south of Pittsburgh
  and dry/seasonable weather north today
- Higher rainfall rates and increasingly saturated grounds
  creates risk for flash flooding
---------------------------------------------------------------

Brief subsidence between shortwave perturbations will allow for
much of the region to start the day dry with only low
probabilities for an isolated shower.

Weak shortwave movement within quasi-zonal flow aloft will aid
in the eastward movement of a surface low from central MI
towards southeastern Canada today. This will push a surface cold
front SE through the morning that may initially be dry given
weak forcing aloft and CIN in the region. As the boundary
approaches the I-70 corridor shortly after noon, ensemble models
favor an uptick in convective initiation that will lead to waves
of west to east moving thunderstorms through the evening. A
slightly less buoyant/moist environment than Wednesday (SBCAPE
values closer to 1500 J/kg and PWATs closer to 90th percentile)
will still be enough to foster a 1-2"/hr rainfall rates with
localized totals that could exceed 3". Based on increasingly
saturated grounds, high PWATs, and potential for some storm
training as the surface boundary becomes parallel to upper
flow, a Flood Watch for flash flooding was issued for most of
northern WV from 2pm-midnight tonight; this coincides with
WPC`s Slight Risk Excessive Rainfall Outlook.

Hi-res modeling continues to be bullish in dry weather north of
the boundary today, with slight cool/dry advection leading to
more seasonable afternoon temperatures.  The surface boundary
will stall near the I-68 corridor tonight as it becomes
displaced from the upper shortwave, with convective activity
generally dissipating by 06z with the loss of heating/jet
ascent. That said, isolated showers may continue into Friday
morning along the stalled boundary given the warm, moist
environment.

&&

.SHORT TERM /FRIDAY THROUGH FRIDAY NIGHT/...
KEY MESSAGES:

- Diurnally driven convection is expected along and south of the
  stalled boundary, favoring mainly northern WV.
- Areas north of the front are likely to remain dry with
  seasonable temperature.

----------------------------------------------------------------

Quasi-zonal flow aloft with contain very weak perturbations that
will interact with the stalled surface boundary and diurnal
heating to develop scattered thunderstorms mainly over northern
WV Friday. High pressure to the north of the boundary will
support dry, seasonable weather as afternoon high temperature
falls near to slightly below the daily average. For the storm
environment, little air mass change from Thursday means high
PWATs (near 90th percentile) with weak CAPE (less than 1000
J/kg) and weak shear mean localized flash flooding remains
possible. Ensemble signals suggest potential for 1-2"/hr rates
may lay just south of the region, but flood risk will be
monitored given increasingly saturated grounds and generally
favorable training set up (stalled boundary parallel to upper
flow).

Loss of diurnal heating is likely to limit areal coverage of
storms near the I-68 corridor Friday night, but not eliminate
the chances. The approach of additional shortwave energy from
the Upper Mississippi River Valley may act to lift the surface
front (and associated precipitation chances) northward
overnight.

&&

.LONG TERM /SATURDAY THROUGH WEDNESDAY/...
KEY MESSAGES:

- Ensembles trending toward continuing the active weather
  pattern Saturday into next week.
- Flood and severe potential remain highly uncertain and is
  likely largely predicated on prior days outcomes.
-------------------------------------------------------------------

Ensemble models are becoming increasingly bullish on widespread
convection returning to the forecast area Saturday in response
to shortwave movement within developing NW flow traverses the
Great Lakes region. However, there remains a large spread in
wave timing and storm coverage that will be influenced by the
degree of northward lift of the stalled WV boundary as well as
potential SE advancement of some sort of MCS system out of the
western Great Lakes. What can be said is that the warm/moist
airmass featuring 90th percentile and higher PWATs are favored
to be positioned over portions of southeast OH towards Tucker
County (WV) that would suggest an increased risk for flash
flooding. Further NE movement of these PWATs in ensuing model
runs (a possible scenario) would increase that risk further into
western PA. Other hazards like damaging wind can`t be ruled out
either.

The active pattern is favored to continue Sunday into next week
with a series of shortwaves crossing within NW flow as ridging
attempts to build over the MS River Valley. Timing and
variability of conditions remains high but the messaging of
continued flooding and severe threats is likely to continue.

&&

.AVIATION /18Z THURSDAY THROUGH TUESDAY/...
Scattered to broken cumulus clouds will continue through late
afternoon as convective temperature have been reached.

A surface boundary will drift south across the Upper Ohio
Valley region this afternoon and evening, and will be the focus
for showers and thunderstorms. Maintained a prob30 mention for
thunder for airports generally from ZZV to LBE, where timing of
convective development along the boundary is in question. MGW
has a higher chance of seeing thunder, so maintained a Tempo
with a subsequent prob30 to account for convection along and
ahead of the boundary. Expect MVFR to IFR stratus and patchy fog
to develop overnight with low level moisture in place.

Outlook...
After any morning for or stratus, shower and thunderstorm
chances are expected mainly south of a ZZV-LBE on Friday as the
surface boundary drifts southward. The front will return north
as a warm front on Saturday, with more numerous showers and
thunderstorms across the area. Additional showers/storms are
expected Sunday as the front returns south as a cold front.
There will also be a potential for overnight/early morning fog
and stratus through Sunday night. Mainly dry weather is expected
for Monday as high pressure begins to build in. A chance of
showers/storms returns Tuesday with approaching low pressure.

&&

.PBZ WATCHES/WARNINGS/ADVISORIES...
PA...None.
OH...None.
WV...Flood Watch until midnight EDT tonight for WVZ012-021-509>514.

&&

$$

SYNOPSIS...Frazier
NEAR TERM...Frazier
SHORT TERM...Frazier
LONG TERM...Frazier
AVIATION...WM
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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