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

Atmospheric River to Begin to Impact the Northwest U.S.; Gusty Winds in the Northeast U.S.

A strong atmospheric river moving into northern California later Tuesday will bring a threat for moderate to heavy rainfall and flooding, gusty to high winds, and mountain snows for parts of the Northwest U.S. through at least Wednesday. Gusty winds and isolated rain and snow showers will continue in the Northeast U.S. Tuesday behind a cold front. Read More >

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fair

50°F

10°C

Humidity 50%
Wind Speed NW 9 mph
Barometer 29.98 in (1014.6 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 4 Nov 1:53 am EST
Extended Forecast for

Langhorne PA

  • Overnight

    Overnight: Clear, with a low around 44. West wind 10 to 15 mph.

    Low: 44 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 60. West wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 60 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 39. West wind around 5 mph.

    Low: 39 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 66. South wind 5 to 15 mph.

    High: 66 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 44. Southwest wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 25 mph.

    Low: 44 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Friday Night

    Friday Night: Showers. Low around 50. Chance of precipitation is 80%.

    Low: 50 °F

    Showers

Detailed Forecast

Overnight
Clear, with a low around 44. West wind 10 to 15 mph.
Tuesday
Sunny, with a high near 60. West wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 39. West wind around 5 mph.
Wednesday
Mostly sunny, with a high near 66. South wind 5 to 15 mph.
Wednesday Night
Partly cloudy, with a low around 44. Southwest wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 25 mph.
Thursday
Sunny, with a high near 56.
Thursday Night
Partly cloudy, with a low around 34.
Friday
Partly sunny, with a high near 61.
Friday Night
Showers. Low around 50. Chance of precipitation is 80%.
Saturday
Partly sunny, with a high near 61.
Saturday Night
Partly cloudy, with a low around 41.
Sunday
A chance of showers. Mostly cloudy, with a high near 60. Chance of precipitation is 40%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 38. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Langhorne PA
 40.17°N 74.91°W (Elev. 200 ft)
Last Update:
12:34 am EST Nov 4, 2025
Forecast Valid:
2am EST Nov 4, 2025-6pm EST Nov 10, 2025
 
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