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

Briefing for Heat, Severe Storm, and Flash Flood Risks through Thursday

Dangerously hot and humid conditions are expected through Wednesday. There is also a threat of isolated severe thunderstorms on Wednesday. Flash flooding from locally heavy rainfall is possible on Thursday. See this briefing for details on these hazards. Read More >

Hazardous Weather Conditions

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fair

74°F

23°C

Humidity 94%
Wind Speed S 3 mph
Barometer 29.96 in (1013.6 mb)
Dewpoint 72°F (22°C)
Visibility 9.00 mi
Last update 31 Jul 5:53 am EDT
Extended Forecast for

Ewing NJSimilar City Names

Flood Watch July 31, 02:00pm until August 1, 06:00am
Click here for hazard details and duration
Flood Watch

  • Today

    Today: A slight chance of showers, then showers and thunderstorms likely after noon. Some of the storms could produce heavy rainfall. Increasing clouds, with a high near 86. East wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between 1 and 2 inches possible.

    High: 86 °F

    Slight Chance
    Showers then
    Heavy Rain

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 3am, then showers likely. Some of the storms could produce heavy rainfall. Low around 64. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Low: 64 °F

    Heavy Rain

  • Friday

    Friday: A chance of showers. Mostly cloudy, with a high near 73. Northeast wind around 15 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 73 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 60. North wind 5 to 10 mph.

    Low: 60 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 79. North wind around 10 mph.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

Detailed Forecast

Today
A slight chance of showers, then showers and thunderstorms likely after noon. Some of the storms could produce heavy rainfall. Increasing clouds, with a high near 86. East wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between 1 and 2 inches possible.
Tonight
Showers and possibly a thunderstorm before 3am, then showers likely. Some of the storms could produce heavy rainfall. Low around 64. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Friday
A chance of showers. Mostly cloudy, with a high near 73. Northeast wind around 15 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Partly cloudy, with a low around 60. North wind 5 to 10 mph.
Saturday
Sunny, with a high near 79. North wind around 10 mph.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 62.
Monday
Sunny, with a high near 85.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
Mostly sunny, with a high near 85.
Tuesday Night
Mostly cloudy, with a low around 65.
Wednesday
Partly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ewing NJSimilar City Names
 40.27°N 74.8°W (Elev. 157 ft)
Last Update:
4:11 am EDT Jul 31, 2025
Forecast Valid:
6am EDT Jul 31, 2025-6pm EDT Aug 6, 2025
 
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Additional Resources

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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