Air Quality Concerns for the Great Lakes Eastward; Heavy Rainfall Potential Continues for the West

Widespread smoke from Canadian wildfires is causing numerous and widespread Air Quality Alerts from the Northeast to the Great Lakes as well as for other urban areas in the central/eastern U.S. Daily rounds of heavy rain are forecast through the remainder of the week in the Rockies and High Plains with the potential for scattered instances of flash flooding. Read More >

Hazardous Weather Conditions

En Español

Current conditions at

Selinsgrove Penn Valley Airport (KSEG)

Lat: 40.82°NLon: 76.87°WElev: 443ft.

Mostly Cloudy with Haze

54°F

12°C

Humidity	83%
Wind Speed	Calm
Barometer	29.74 in (1006.7 mb)
Dewpoint	49°F (9°C)
Visibility	2.50 mi
Last update	7 Jun 7:53 am EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Mobile Weather Hourly Weather Forecast

Extended Forecast for

Northumberland PA

Today

Haze
High: 76 °F
Tonight

Haze
Low: 45 °F
Thursday

Haze then
Chance
Showers
High: 70 °F
Thursday
Night

Chance
Showers then
Mostly Cloudy
Low: 48 °F
Friday

Chance
Showers then
Showers
Likely
High: 73 °F
Friday
Night

Showers
Likely then
Partly Cloudy
Low: 48 °F
Saturday

Mostly Sunny
High: 80 °F
Saturday
Night

Partly Cloudy
Low: 55 °F
Sunday

Partly Sunny
then Chance
Showers
High: 83 °F

Detailed Forecast

Today

Widespread haze. Widespread smoke. Partly sunny, with a high near 76. Northwest wind 6 to 10 mph.

Tonight

Widespread haze. Widespread smoke. Partly cloudy, with a low around 45. North wind 5 to 8 mph becoming calm after midnight.

Thursday

A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Widespread haze. Areas of smoke. Partly sunny, with a high near 70. Northwest wind 3 to 8 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday Night

A chance of showers, mainly before 7pm. Mostly cloudy, with a low around 48. North wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Friday

A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 73. North wind 6 to 9 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday Night

Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 48. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday

Mostly sunny, with a high near 80.

Saturday Night

Partly cloudy, with a low around 55.

Sunday

A chance of showers after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 40%.

Sunday Night

Showers likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.

Monday

Showers likely and possibly a thunderstorm. Partly sunny, with a high near 76. Chance of precipitation is 60%.

Monday Night

Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 58. Chance of precipitation is 60%.