Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Mostly Cloudy

72°F

22°C

Humidity 84%
Wind Speed SE 6 mph
Barometer 30.02 in (1015.9 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 27 Aug 7:53 am EDT
Extended Forecast for

Rocky Hill NJ

Flood Watch August 27, 12:00pm until August 28, 04:00am
Click here for hazard details and duration
Flood Watch
  • Today

    Today: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm.  High near 84. South wind around 5 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers.  Mostly cloudy, with a low around 66. South wind around 5 mph becoming calm.  Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Chance
    Showers

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm.  Patchy fog between 7am and 8am.  Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 85. Calm wind.  Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, mainly before 7pm.  Mostly cloudy, with a low around 64. Calm wind.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 85. Calm wind.

    High: 85 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

  • Monday

    Monday: A chance of showers after 2pm.  Mostly sunny, with a high near 88. Chance of precipitation is 30%.

    High: 88 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Today
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. High near 84. South wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers. Mostly cloudy, with a low around 66. South wind around 5 mph becoming calm. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Patchy fog between 7am and 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 85. Calm wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 64. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Mostly sunny, with a high near 85. Calm wind.
Saturday Night
Mostly clear, with a low around 64.
Sunday
Mostly sunny, with a high near 87.
Sunday Night
Partly cloudy, with a low around 68.
Monday
A chance of showers after 2pm. Mostly sunny, with a high near 88. Chance of precipitation is 30%.
Monday Night
A chance of showers before 8pm. Partly cloudy, with a low around 68. Chance of precipitation is 30%.
Tuesday
A chance of showers. Mostly sunny, with a high near 87. Chance of precipitation is 30%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Wednesday
A chance of showers. Partly sunny, with a high near 85. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Rocky Hill NJ
 40.41°N 74.63°W (Elev. 98 ft)
4:09 am EDT Aug 27, 2026
8am EDT Aug 27, 2026-6pm EDT Sep 2, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database