Heavy Rainfall and Flooding Threats in the Midwest and Ohio Valley; Heat Continues in the Plains and Southeast

An active pattern will continue to bring heavy to excessive rainfall and flash flooding threats to the Midwest and Ohio Valley over the next couple of days. Dangerous heat continues across the central/southern Plains and Southeast U.S. into next week. There is potential for record-tying/breaking temperatures with many areas forecast to see their hottest temperatures so far this year. Read More >

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Overcast

75°F

24°C

Humidity 71%
Wind Speed W 3 mph
Barometer 29.82 in (1009.1 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 13 Aug 3:53 am EDT
Extended Forecast for

3 Miles SSE Princeton Junction NJ

  • Overnight

    Overnight: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 67. Southwest wind around 5 mph.  Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Chance
    T-storms

  • Thursday

    Thursday: Mostly sunny, with a high near 87. Northwest wind 5 to 10 mph.

    High: 87 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 67. Northwest wind around 5 mph becoming calm.

    Low: 67 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 87. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 87 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 65. Southwest wind around 5 mph becoming calm.

    Low: 65 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Saturday Night

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

    Low: 63 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers after 2pm.  Partly sunny, with a high near 86. Chance of precipitation is 50%.

    High: 86 °F

    Partly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly between 8pm and 2am.  Mostly cloudy, with a low around 69. Chance of precipitation is 70%.

    Low: 69 °F

    Showers
    Likely

Detailed Forecast

Overnight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Southwest wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Mostly sunny, with a high near 87. Northwest wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 67. Northwest wind around 5 mph becoming calm.
Friday
Mostly sunny, with a high near 87. Calm wind becoming northwest around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 65. Southwest wind around 5 mph becoming calm.
Saturday
Sunny, with a high near 86.
Saturday Night
Partly cloudy, with a low around 63.
Sunday
A chance of showers after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 50%.
Sunday Night
Showers likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 70%.
Monday
A chance of showers before 8am, then a chance of showers after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 30%.
Monday Night
A chance of showers. Partly cloudy, with a low around 65. Chance of precipitation is 30%.
Tuesday
Sunny, with a high near 86.
Tuesday Night
Mostly clear, with a low around 64.
Wednesday
Sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Princeton Junction NJ
 40.27°N 74.6°W (Elev. 98 ft)
4:08 am EDT Aug 13, 2026
4am EDT Aug 13, 2026-6pm EDT Aug 19, 2026
 
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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