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Current conditions at
Selinsgrove Penn Valley Airport (KSEG)
Lat: 40.82°NLon: 76.87°WElev: 443ft.
Fair
72°F
22°C
| Humidity | 97% |
| Wind Speed | Calm |
| Barometer | 30.05 in (1017.2 mb) |
| Dewpoint | 71°F (22°C) |
| Visibility | 8.00 mi |
| Last update | 15 Jul 11:53 pm EDT |
Extended Forecast for
Northumberland PA
Overnight
Low: 71 °F
Patchy Fog
Wednesday
High: 90 °F
Patchy Fog
then Chance
T-stormsWednesday Night
Low: 72 °F
T-storms then
Showers
LikelyThursday
High: 91 °F
Showers
LikelyThursday Night
Low: 71 °F
Showers
Likely then
Slight Chance
ShowersFriday
High: 84 °F
Chance
ShowersFriday Night
Low: 62 °F
Chance
Showers then
Mostly ClearSaturday
High: 83 °F
Mostly Sunny
then Chance
ShowersSaturday Night
Low: 67 °F
Chance
Showers
Detailed Forecast
Overnight
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 71. Calm wind.
Wednesday
A chance of showers and thunderstorms, mainly after 2pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 90. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and thunderstorms before 5am, then a chance of showers. Low around 72. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 91. Calm wind becoming southwest 5 to 7 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 71. Light west wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A slight chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 30%.
Friday Night
A chance of showers before 8pm. Partly cloudy, with a low around 62. Chance of precipitation is 30%.
Saturday
A chance of showers after 2pm. Mostly sunny, with a high near 83. Chance of precipitation is 30%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 67. Chance of precipitation is 50%.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 84. Chance of precipitation is 70%.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 84. Chance of precipitation is 30%.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 63. Chance of precipitation is 30%.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 40%.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Northumberland PA
40.89°N 76.79°W (Elev. 482 ft)
40.89°N 76.79°W (Elev. 482 ft)
6:13 pm EDT Jul 15, 2025
12am EDT Jul 16, 2025-6pm EDT Jul 22, 2025
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