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Severe Weather of July 18th, 2026

Current conditions at

Selinsgrove Penn Valley Airport (KSEG)

Lat: 40.82°NLon: 76.87°WElev: 443ft.

Mostly Cloudy

78°F

26°C

Humidity	71%
Wind Speed	S 6 mph
Barometer	29.89 in (1011.9 mb)
Dewpoint	68°F (20°C)
Visibility	10.00 mi
Heat Index	80°F (27°C)
Last update	1 Aug 11:53 pm EDT

More Information:

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

Extended Forecast for

Riverside PA

Overnight
Low: 69 °F
Slight Chance
Showers
Sunday
High: 80 °F
Slight Chance
Showers then
Showers
Likely
Sunday Night
Low: 68 °F
Showers
Monday
High: 81 °F
Showers
Likely
Monday Night
Low: 64 °F
Showers
Likely then
Slight Chance
Showers and
Patchy Fog
Tuesday
High: 82 °F
Patchy Fog
then Chance
Showers
Tuesday Night
Low: 67 °F
Chance
T-storms
Wednesday
High: 83 °F
Partly Sunny
then Showers
Likely
Wednesday Night
Low: 68 °F
Showers
Likely

Detailed Forecast

Overnight

A slight chance of showers between 3am and 5am. Mostly cloudy, with a low around 69. Southeast wind 3 to 5 mph. Chance of precipitation is 20%.

Sunday

Showers likely and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 80. South wind 5 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday Night

Showers and possibly a thunderstorm. Low around 68. Light southeast wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Monday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 81. Light and variable wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Monday Night

Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers between 8pm and 2am. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 64. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday

A chance of showers and thunderstorms after 2pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 82. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday Night

A chance of showers before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 40%.

Wednesday

Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 70%.

Wednesday Night

Showers likely and possibly a thunderstorm before 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.

Thursday

A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 50%.

Thursday Night

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

Friday

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

Friday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 30%.