


Hazardous Weather Conditions
Current conditions at
Selinsgrove Penn Valley Airport (KSEG)
Lat: 40.82°NLon: 76.87°WElev: 443ft.
Overcast
70°F
21°C
Humidity | 84% |
Wind Speed | SW 5 mph |
Barometer | 30.01 in (1016.0 mb) |
Dewpoint | 65°F (18°C) |
Visibility | 10.00 mi |
Last update | 17 Jun 12:53 pm EDT |
Extended Forecast for
Northumberland PA
This Afternoon
High: 75 °F
Chance
T-stormsTonight
Low: 68 °F
Showers then
Chance
ShowersWednesday
High: 83 °F
Showers and
Patchy FogWednesday Night
Low: 69 °F
Chance
ShowersJuneteenth
High: 88 °F
Chance
T-storms then
Severe
ThunderstormsThursday Night
Low: 61 °F
Severe
Thunderstorms
then Partly
CloudyFriday
High: 85 °F
Sunny
Friday Night
Low: 62 °F
Partly Cloudy
Saturday
High: 89 °F
Mostly Sunny
Detailed Forecast
This Afternoon
A chance of showers and thunderstorms, mainly after 4pm. Cloudy, with a high near 75. South wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and possibly a thunderstorm before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then a chance of showers after 1am. Low around 68. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 5pm, then a chance of showers and thunderstorms after 5pm. Patchy fog before 7am. High near 83. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 69. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Juneteenth
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. Some of the storms could be severe. Mostly sunny, with a high near 88. Southwest wind 5 to 9 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. 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. Some of the storms could be severe. Partly cloudy, with a low around 61. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Sunny, with a high near 85.
Friday Night
Partly cloudy, with a low around 62.
Saturday
Mostly sunny, with a high near 89.
Saturday Night
Partly cloudy, with a low around 68.
Sunday
Mostly sunny and hot, with a high near 95.
Sunday Night
Mostly clear, with a low around 71.
Monday
Sunny and hot, with a high near 96.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Northumberland PA
40.89°N 76.79°W (Elev. 482 ft)
40.89°N 76.79°W (Elev. 482 ft)
12:59 pm EDT Jun 17, 2025
1pm EDT Jun 17, 2025-6pm EDT Jun 23, 2025