Old Furnace, Pennsylvania Weather
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Weather Forecast for Old Furnace, Pennsylvania : Union County
Issued: 1:05 pm EDT Sep 4, 2025 Latitude: 41.0739717 Longitude: -76.9349652 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Friday Saturday Sunday Monday Tuesday Wednesday Thursday
60% chance of thunderstorms on This Afternoon 60% chance of thunderstorms on Tonight Mostly Sunny on Friday 80% chance of thunderstorms on Saturday Mostly Sunny on Sunday Sunny on Monday Sunny on Tuesday Sunny on Wednesday Mostly Sunny on Thursday
High: 70°F Low: 59°F High: 82°F High: 75°F High: 72°F High: 72°F High: 73°F High: 75°F High: 76°F
Low: 64°F Low: 52°F Low: 47°F Low: 46°F Low: 48°F Low: 52°F  
Thunderstorms Thunderstorms Mostly Sunny Thunderstorms Mostly Sunny Sunny Sunny Sunny Mostly Sunny
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Current Conditions at
WILLIAMSPORT - (KIPT)
73°
Clear
as of 4:54 PM EDST
Rel. Humidity: 64%
Dew Point: 61°F
Visibility: 10 Miles
Pressure: 29.70 in.
Flight Rule: VFR
Wind Data
8 MPH
290° West
Cloud Level(s): Clear
Current Conditions at
SELINSGROVE - (KSEG)
73°
Mostly Clear
as of 4:53 PM EDST
Rel. Humidity: 73%
Dew Point: 64°F
Visibility: 10 Miles
Pressure: 29.72 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Few at 8500ft
Current Conditions at
MUIR AAF - (KMUI)
73°
Mostly Cloudy
Shower(S) In Vicinity
as of 4:55 PM EDST
Rel. Humidity: 88%
Dew Point: 70°F
Visibility: 10 Miles
Pressure: 29.73 in.
Flight Rule: VFR
Wind Data
9 MPH
070° East
Cloud Level(s): Scattered at 4500ft, Broken at 11000ft, Broken at 13000ft
Current Conditions at
UNIVERSITY PARK - (KUNV)
68°
Mostly Cloudy
as of 4:53 PM EDST
Rel. Humidity: 82%
Dew Point: 63°F
Visibility: 10 Miles
Pressure: 29.76 in.
Flight Rule: VFR
Wind Data
7 MPH
230° Southwest
Cloud Level(s): Scattered at 3700ft, Broken at 4600ft
60% chance of thunderstorms This Afternoon This Afternoon... Showers likely and possibly a thunderstorm. Mostly cloudy, with a steady temperature around 70. South wind around 7 mph. Chance of precipitation is 60%. 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 11pm, then a slight chance of showers between 11pm and 1am. Cloudy, then gradually becoming partly cloudy, with a low around 59. South wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Mostly Sunny on Friday Friday... Mostly sunny, with a high near 82. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 21 mph.
30% chance of thunderstorms Friday Night Friday Night... A slight chance of showers, then a chance of showers and thunderstorms after 2am. Increasing clouds, with a low around 64. South wind 3 to 6 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
80% chance of thunderstorms Saturday Saturday... A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. High near 75. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
80% chance of thunderstorms Saturday Night Saturday Night... Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Low around 52. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 72.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 47.
Sunny on Monday Monday... Sunny, with a high near 72.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 46.
Sunny on Tuesday Tuesday... Sunny, with a high near 73.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 48.
Sunny on Wednesday Wednesday... Sunny, with a high near 75.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 52.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 76.
Current Radar Image


Sun Almanac for Old Furnace, Pennsylvania
Sunrise: 06:38 AM
Sunset: 7:35 PM
Civil Sunrise:06:10 AM
Civil Sunset: 8:03 PM
Nautical Sunrise: 05:36 AM
Nautical Sunset: 8:37 PM
Astro Sunrise: 05:02 AM
Astro Sunset: 9:11 PM
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