Severe Thunderstorm and Flash Flood Threats Early This Week

The threat for severe thunderstorms and flash flooding are likely from the central and southern Plains into the Ohio/Tennessee Valleys and Mid-Atlantic early this week. A couple of slow moving systems will track west to east, while a plume of moisture focuses near a stalled front. Some of the thunderstorms could contain damaging winds and large hail, while flood watches extend from MO/IL to DE/NJ. Read More >

Hazardous Weather Conditions

Current conditions at

Selinsgrove Penn Valley Airport (KSEG)

Lat: 40.82° N Lon: 76.87° W Elev: 443 ft.

Light Rain

67°F

19°C

Humidity	87%
Wind Speed	Calm
Barometer	30.01 in (1015.9 mb)
Dewpoint	63°F (17°C)
Visibility	10.00 mi
Last update	17 Jun 10:53 am EDT

More Information:

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

Detailed forecast for

Northumberland County

Rest Of Today

Cloudy. Patchy fog late this morning. A chance of showers late this morning, then showers and thunderstorms likely this afternoon. Some thunderstorms may produce gusty winds and heavy rainfall this afternoon. Highs in the lower 70s. Light and variable winds, becoming southeast around 5 mph this afternoon. Chance of rain 70 percent.

Tonight

Cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers after midnight. Some thunderstorms may produce heavy rainfall. Humid with lows in the mid 60s. East winds around 5 mph in the evening, becoming light and variable. Chance of rain 80 percent.

Tuesday

A chance of thunderstorms. Showers, mainly in the morning. Some thunderstorms may produce heavy rainfall. Humid with highs in the upper 70s. West winds around 5 mph, becoming southwest in the afternoon. Chance of rain 80 percent.

Tuesday Night

Cloudy with a chance of showers. A chance of thunderstorms, mainly in the evening. Some thunderstorms may produce heavy rainfall in the evening. Some thunderstorms may produce heavy rainfall after midnight. Humid with lows in the lower 60s. Light and variable winds. Chance of rain 50 percent.

Wednesday

Showers likely with a slight chance of thunderstorms. Humid with highs in the upper 70s. East winds around 5 mph, becoming southwest in the afternoon. Chance of rain 70 percent.

Wednesday Night

Mostly cloudy. Showers likely, mainly in the evening. Humid with lows in the mid 60s. Chance of rain 70 percent.

Thursday

Showers likely. Humid with highs in the upper 70s. Chance of rain 70 percent.

Thursday Night

A chance of thunderstorms in the evening. Showers likely. Humid with lows in the lower 60s. Chance of rain 70 percent.

Friday

Partly sunny. Showers likely, mainly in the morning. Highs in the upper 70s. Chance of rain 60 percent.

Friday Night

Partly cloudy. A chance of showers in the evening. Lows in the upper 50s. Chance of rain 30 percent.

Saturday

Mostly sunny. Highs around 80.