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Severe Weather of July 18th, 2026

Hazardous Weather Conditions

Current conditions at

Selinsgrove Penn Valley Airport (KSEG)

Lat: 40.82°NLon: 76.87°WElev: 443ft.

Heavy Rain Fog/Mist

75°F

24°C

Humidity	88%
Wind Speed	S 6 mph
Barometer	29.79 in (1008.5 mb)
Dewpoint	71°F (22°C)
Visibility	2.00 mi
Last update	2 Aug 3:53 pm EDT

More Information:

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

Extended Forecast for

Winfield PA

Flood Watch August 2, 04:18pm until August 3, 02:00am

Click here for hazard details and duration

Flood Watch

Flood Watch August 2, 04:18pm until August 3, 02:00am
NOW until 2:00am Mon
Flood Watch
This Afternoon
High: 79 °F
Heavy Rain
Tonight
Low: 70 °F
Heavy Rain
Monday
High: 81 °F
Chance
Showers then
Mostly Cloudy
Monday Night
Low: 62 °F
Mostly Cloudy
Tuesday
High: 83 °F
Partly Sunny
Tuesday Night
Low: 63 °F
Partly Cloudy
Wednesday
High: 84 °F
Partly Sunny
then Chance
Showers
Wednesday Night
Low: 67 °F
Chance
Showers

Detailed Forecast

This Afternoon

Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 79. Southeast wind around 8 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and possibly a thunderstorm, mainly before 4am, then a chance of showers and thunderstorms after 4am. Some of the storms could produce heavy rainfall. Low around 70. South wind around 6 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

Monday

A chance of showers and thunderstorms, mainly before 8am. Mostly cloudy, with a high near 81. Light and variable wind becoming northwest 5 to 7 mph in the morning. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Monday Night

Mostly cloudy, with a low around 62. North wind around 5 mph becoming calm in the evening.

Tuesday

Partly sunny, with a high near 83. Calm wind.

Tuesday Night

Partly cloudy, with a low around 63.

Wednesday

A chance of showers after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 40%.

Wednesday Night

A chance of showers before 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 40%.

Thursday

Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 70%.

Thursday Night

Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.

Friday

Showers likely and possibly a thunderstorm. Partly sunny, with a high near 85. Chance of precipitation is 60%.

Friday Night

Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.

Saturday

A chance of showers and thunderstorms. Mostly sunny, with a high near 85. Chance of precipitation is 40%.

Saturday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.

Sunday

Mostly sunny, with a high near 86.