Herndon, Pennsylvania Weather
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Weather Forecast for Herndon, Pennsylvania : Northumberland County
Issued: 1:23 am EDT Jun 18, 2025 Latitude: 40.709529 Longitude: -76.842472 View on Google Maps

MouseOver for Detail Forecast
Overnight Wednesday Juneteenth Friday Saturday Sunday Monday Tuesday
50% chance of rain on Overnight 70% chance of thunderstorms on Wednesday 90% chance of thunderstorms on Juneteenth Sunny on Friday Mostly Sunny on Saturday Mostly Sunny on Sunday Sunny on Monday Sunny on Tuesday
Low: 68°F High: 84°F High: 86°F High: 84°F High: 87°F High: 93°F High: 96°F High: 97°F
Low: 69°F Low: 61°F Low: 62°F Low: 68°F Low: 72°F Low: 73°F  
Rain Thunderstorms Thunderstorms Sunny Mostly Sunny Mostly Sunny Sunny Sunny
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Current Conditions at
SELINSGROVE - (KSEG)
70°
Cloudy
as of 12:53 AM EDST
Rel. Humidity: 100%
Dew Point: 70°F
Visibility: 10 Miles
Pressure: 29.93 in.
Flight Rule: IFR
Wind Data
3 MPH
190° South
Cloud Level(s): Solid Overcast at 800ft
Current Conditions at
MUIR AAF - (KMUI)
70°
Cloudy
Mist
as of 12:55 AM EDST
Rel. Humidity: 100%
Dew Point: 70°F
Visibility: 4 Miles
Pressure: 29.92 in.
Flight Rule: IFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 500ft
Current Conditions at
HARRISBURG - (KCXY)
72°
Mostly Cloudy
Light Rain
as of 12:56 AM EDST
Rel. Humidity: 94%
Dew Point: 70°F
Visibility: 9 Miles
Pressure: 29.92 in.
Flight Rule: MVFR
Wind Data
6 MPH
090° East
Cloud Level(s): Broken at 1100ft, Broken at 7000ft
Current Conditions at
WILLIAMSPORT - (KIPT)
72°
Cloudy
as of 12:54 AM EDST
Rel. Humidity: 88%
Dew Point: 68°F
Visibility: 10 Miles
Pressure: 29.91 in.
Flight Rule: IFR
Wind Data
12 MPH
Gust: 17 MPH
220° Southwest
Cloud Level(s): Solid Overcast at 900ft
50% chance of rain Overnight Overnight... Scattered showers. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
70% chance of thunderstorms Wednesday Wednesday... Showers likely before 11am, then a chance of showers and thunderstorms between 11am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 84. Calm wind becoming southwest 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.
60% chance of thunderstorms Wednesday Night Wednesday Night... Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 8pm. Patchy fog between 2am and 3am. Otherwise, partly cloudy, with a low around 69. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
90% chance of thunderstorms Juneteenth Juneteenth... A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. Some of the storms could be severe. High near 86. Light south wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
80% chance of thunderstorms Thursday Night Thursday Night... Showers and possibly a thunderstorm before 8pm. Some of the storms could be severe. Low around 61. Northwest wind 3 to 6 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunny on Friday Friday... Sunny, with a high near 84.
Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 62.
Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 87.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 68.
Mostly Sunny on Sunday Sunday... Mostly sunny and hot, with a high near 93.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 72.
Sunny on Monday Monday... Sunny and hot, with a high near 96.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 73.
Sunny on Tuesday Tuesday... Sunny and hot, with a high near 97.
Current Radar Image


Sun Almanac for Herndon, Pennsylvania
Sunrise: 05:36 AM
Sunset: 8:41 PM
Civil Sunrise:05:03 AM
Civil Sunset: 9:15 PM
Nautical Sunrise: 04:20 AM
Nautical Sunset: 9:57 PM
Astro Sunrise: 03:30 AM
Astro Sunset: 10:48 PM
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