National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Flooding Risks from Tropical Moisture Across the Southeast and Southwest

Tropical moisture from Isaias and Rachel will impact portions of the Southeast and Southwest this weekend. Flash flooding, strong winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, strong winds and dry fuels are raising fire weather concerns across the central Great Basin and western High Plains. Across the northern Rockies, first winter storm of the season. Read More >

Current conditions at

Selinsgrove Penn Valley Airport (KSEG)

Lat: 40.82°NLon: 76.87°WElev: 443ft.

Light Rain Fog/Mist

54°F

12°C

Humidity 97%
Wind Speed NE 3 mph
Barometer 30.36 in (1028.1 mb)
Dewpoint 53°F (12°C)
Visibility 6.00 mi
Last update 11 Oct 3:53 am EDT
Extended Forecast for

Mifflinburg PA

  • Overnight

    Overnight: A chance of rain. Cloudy, with a low around 54. Calm wind. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 54 °F

    Chance Rain

  • Sunday

    Sunday: Rain before 2pm, then rain and possibly a thunderstorm between 2pm and 5pm, then rain after 5pm. Some of the storms could produce heavy rainfall. High near 61. Calm wind becoming east 5 to 7 mph in the morning. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    High: 61 °F

    Heavy Rain

  • Sunday Night

    Sunday Night: Rain and thunderstorms, mainly before 1am. Low around 56. Light north wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 56 °F

    Rain then
    Chance Rain

  • Columbus Day

    Columbus Day: Mostly sunny, with a high near 72. North wind 3 to 7 mph.

    High: 72 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 54. Calm wind.

    Low: 54 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

Detailed Forecast

Overnight
A chance of rain. Cloudy, with a low around 54. Calm wind. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Rain before 2pm, then rain and possibly a thunderstorm between 2pm and 5pm, then rain after 5pm. Some of the storms could produce heavy rainfall. High near 61. Calm wind becoming east 5 to 7 mph in the morning. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Sunday Night
Rain and thunderstorms, mainly before 1am. Low around 56. Light north wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Columbus Day
Mostly sunny, with a high near 72. North wind 3 to 7 mph.
Monday Night
Partly cloudy, with a low around 54. Calm wind.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
Partly cloudy, with a low around 63.
Wednesday
Mostly sunny, with a high near 74.
Wednesday Night
Partly cloudy, with a low around 51.
Thursday
Mostly sunny, with a high near 65.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 48. Chance of precipitation is 50%.
Friday
Showers likely. Mostly cloudy, with a high near 65. Chance of precipitation is 60%.
Friday Night
Showers likely. Mostly cloudy, with a low around 45. Chance of precipitation is 60%.
Saturday
Partly sunny, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mifflinburg PA
 40.91°N 77.05°W (Elev. 699 ft)
Last Update:
2:26 am EDT Oct 11, 2026
Forecast Valid:
4am EDT Oct 11, 2026-6pm EDT Oct 17, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation