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

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fair

56°F

13°C

Humidity 97%
Wind Speed NW 3 mph
Barometer 30.27 in (1024.5 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 22 May 12:53 am EDT
Extended Forecast for

Richboro PA

  • Overnight

    Overnight: Cloudy, with a low around 51. Calm wind.

    Low: 51 °F

    Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 63. East wind around 10 mph, with gusts as high as 20 mph.

    High: 63 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A slight chance of showers before 8pm, then rain likely after midnight. Cloudy, with a low around 46. East wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Slight Chance
    Showers then
    Rain Likely

  • Saturday

    Saturday: Rain. High near 55. East wind 10 to 15 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 55 °F

    Rain

  • Saturday Night

    Saturday Night: Rain. Low around 47. East wind 10 to 15 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    Low: 47 °F

    Rain

  • Sunday

    Sunday: Rain likely before 11am, then showers likely, mainly between 11am and 2pm. Cloudy, with a high near 65. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    High: 65 °F

    Rain Likely

  • Sunday Night

    Sunday Night: A chance of showers after 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.

    Low: 54 °F

    Mostly Cloudy
    then Chance
    Showers

  • Memorial Day

    Memorial Day: A chance of showers. Mostly cloudy, with a high near 70. Chance of precipitation is 40%.

    High: 70 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 58.

    Low: 58 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Cloudy, with a low around 51. Calm wind.
Friday
Mostly cloudy, with a high near 63. East wind around 10 mph, with gusts as high as 20 mph.
Friday Night
A slight chance of showers before 8pm, then rain likely after midnight. Cloudy, with a low around 46. East wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain. High near 55. East wind 10 to 15 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday Night
Rain. Low around 47. East wind 10 to 15 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Sunday
Rain likely before 11am, then showers likely, mainly between 11am and 2pm. Cloudy, with a high near 65. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
A chance of showers after 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.
Memorial Day
A chance of showers. Mostly cloudy, with a high near 70. Chance of precipitation is 40%.
Monday Night
Mostly cloudy, with a low around 58.
Tuesday
Mostly cloudy, with a high near 79.
Tuesday Night
Mostly cloudy, with a low around 59.
Wednesday
Partly sunny, with a high near 82.
Wednesday Night
Mostly cloudy, with a low around 59.
Thursday
Mostly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Richboro PA
 40.23°N 74.99°W (Elev. 266 ft)
Last Update:
4:08 pm EDT May 21, 2026
Forecast Valid:
1am EDT May 22, 2026-6pm EDT May 28, 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