Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Current conditions at

Selinsgrove Penn Valley Airport (KSEG)

Lat: 40.82°NLon: 76.87°WElev: 443ft.

Fair

36°F

2°C

Humidity 79%
Wind Speed NW 3 mph
Barometer 30.45 in (1031.3 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 12 Apr 4:53 am EDT
Extended Forecast for

2 Miles WSW Riverside PA

Frost Advisory until April 12, 08:00am
Click here for hazard details and duration
Frost Advisory
  •  
    Frost Advisory until April 12, 08:00am

    NOW until 8:00am Sun

    Frost Advisory

  • Overnight

    Low: 35 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 62. Light southeast wind becoming south 6 to 11 mph in the morning. Winds could gust as high as 23 mph.

    High: 62 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 51. South wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 51 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of showers.  Mostly cloudy, with a high near 73. Southwest wind 6 to 9 mph, with gusts as high as 22 mph.  Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 73 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 57. Southwest wind 3 to 7 mph.

    Low: 57 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers after 2pm.  Partly sunny, with a high near 80. Chance of precipitation is 20%.

    High: 80 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers between 8pm and 2am.  Mostly cloudy, with a low around 61. Chance of precipitation is 30%.

    Low: 61 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers after 2pm.  Partly sunny, with a high near 82. Chance of precipitation is 30%.

    High: 82 °F

    Partly Sunny
    then Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 35. Calm wind.
Sunday
Mostly sunny, with a high near 62. Light southeast wind becoming south 6 to 11 mph in the morning. Winds could gust as high as 23 mph.
Sunday Night
Mostly cloudy, with a low around 51. South wind 7 to 10 mph, with gusts as high as 20 mph.
Monday
A chance of showers. Mostly cloudy, with a high near 73. Southwest wind 6 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Mostly cloudy, with a low around 57. Southwest wind 3 to 7 mph.
Tuesday
A slight chance of showers after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 20%.
Tuesday Night
A chance of showers between 8pm and 2am. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.
Wednesday
A chance of showers after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 30%.
Wednesday Night
A chance of showers before 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.
Thursday
Partly sunny, with a high near 81.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 57.
Saturday
A chance of showers. Partly sunny, with a high near 79. Chance of precipitation is 30%.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Riverside PA
 40.94°N 76.66°W (Elev. 568 ft)
2:51 am EDT Apr 12, 2026
5am EDT Apr 12, 2026-6pm EDT Apr 18, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database