Farmington, Pennsylvania Weather
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Weather Forecast for Farmington, Pennsylvania : Fayette County
Issued: 4:11 pm EDT Sep 4, 2025 Latitude: 39.8072982 Longitude: -79.5655972 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Friday Saturday Sunday Monday Tuesday Wednesday
50% chance of thunderstorms on This Afternoon 60% chance of thunderstorms on Tonight Mostly Cloudy on Friday 70% chance of thunderstorms on Saturday Morning Fog on Sunday Morning Fog on Monday Patchy Fog on Tuesday Patchy Fog on Wednesday
High: 66°F Low: 56°F High: 80°F High: 66°F High: 66°F High: 67°F High: 73°F High: 76°F
Low: 57°F Low: 46°F Low: 42°F Low: 42°F Low: 46°F  
Thunderstorms Thunderstorms Mostly Cloudy Thunderstorms Morning Fog Morning Fog Patchy Fog Patchy Fog
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Current Conditions at
MORGANTOWN - (KMGW)
68°
Mostly Cloudy
as of 4:01 PM EDST
Rel. Humidity: 77%
Dew Point: 61°F
Visibility: 10 Miles
Pressure: 29.79 in.
Flight Rule: MVFR
Wind Data
6 MPH
210° Southwest
Cloud Level(s): Broken at 2100ft, Broken at 3900ft
Current Conditions at
LATROBE - (KLBE)
68°
Mostly Cloudy
as of 3:47 PM EDST
Rel. Humidity: 88%
Dew Point: 64°F
Visibility: 10 Miles
Pressure: 29.78 in.
Flight Rule: MVFR
Wind Data
17 MPH
Gust: 29 MPH
190° South
Cloud Level(s): Scattered at 1500ft, Broken at 2500ft
Current Conditions at
ALLEGHENY COUNTY ARPT - (KAGC)
66°
Mostly Cloudy
Mist
as of 3:53 PM EDST
Rel. Humidity: 88%
Dew Point: 63°F
Visibility: 5 Miles
Pressure: 29.75 in.
Flight Rule: MVFR
Wind Data
7 MPH
220° Southwest
Cloud Level(s): Scattered at 2000ft, Broken at 2400ft, Broken at 3100ft
Current Conditions at
JOHNSTOWN - (KJST)
63°
Mostly Cloudy
Light Rain
as of 3:54 PM EDST
Rel. Humidity: 93%
Dew Point: 61°F
Visibility: 10 Miles
Pressure: 29.79 in.
Flight Rule: VFR
Wind Data
9 MPH
210° Southwest
Cloud Level(s): Few at 900ft, Scattered at 2500ft, Broken at 9000ft
50% chance of thunderstorms This Afternoon This Afternoon... A chance of showers and thunderstorms. Cloudy, with a high near 66. Southwest wind around 8 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
60% chance of thunderstorms Tonight Tonight... Showers and thunderstorms likely before 1am, then a slight chance of showers between 1am and 3am. Patchy fog before 11pm, then patchy fog after midnight. Otherwise, cloudy, with a low around 56. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Mostly Cloudy on Friday Friday... Mostly cloudy, then gradually becoming sunny, with a high near 80. Southwest wind 6 to 10 mph, with gusts as high as 23 mph.
70% chance of thunderstorms Friday Night Friday Night... A chance of showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 5am, then showers likely after 5am. Increasing clouds, with a low around 57. Light south wind. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
70% chance of thunderstorms Saturday Saturday... Showers likely before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Cloudy, with a high near 66. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
30% chance of thunderstorms Saturday Night Saturday Night... A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Patchy fog. Otherwise, mostly cloudy, with a low around 46. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Morning Fog on Sunday Sunday... Patchy fog before 9am. Otherwise, mostly sunny, with a high near 66.
Patchy Fog on Sunday Night Sunday Night... Patchy fog after midnight. Otherwise, mostly clear, with a low around 42.
Morning Fog on Monday Monday... Areas of fog before 9am. Otherwise, sunny, with a high near 67.
Morning Fog on Monday Night Monday Night... Patchy fog after 2am. Otherwise, mostly clear, with a low around 42.
Patchy Fog on Tuesday Tuesday... Patchy fog. Otherwise, sunny, with a high near 73.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 46.
Patchy Fog on Wednesday Wednesday... Patchy fog. Otherwise, sunny, with a high near 76.
Current Radar Image


Sun Almanac for Farmington, Pennsylvania
Sunrise: 06:50 AM
Sunset: 7:45 PM
Civil Sunrise:06:22 AM
Civil Sunset: 8:12 PM
Nautical Sunrise: 05:49 AM
Nautical Sunset: 8:45 PM
Astro Sunrise: 05:16 AM
Astro Sunset: 9:19 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.