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

Severe Thunderstorm and Flash Flood Threats Tuesday

Risks for severe thunderstorms and flash flooding continue Tuesday over the Central and Southern Plains ahead of low pressure tracking across the region. Very large hail and damaging winds will be the main threats. Flash flooding from potentially excessive rainfall will be possible from the southern Appalachians into the Mid-Atlantic region. Read More >

Hazardous Weather Conditions

Current conditions at

Trenton, Mercer County Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fog/Mist

70°F

21°C

Humidity 97%
Wind Speed Calm
Barometer 29.94 in (1013.0 mb)
Dewpoint 69°F (21°C)
Visibility 4.00 mi
Last update 18 Jun 3:53 am EDT
Extended Forecast for

Princeton NJ

Flash Flood Watch until June 19, 06:00am
Click here for hazard details and duration
Flash Flood Watch
  •  
    Flash Flood Watch until June 19, 06:00am

    NOW until
    6:00am Wed

    Flash Flood Watch

  • Overnight

    Overnight: Showers likely and possibly a thunderstorm. Some of the storms could produce heavy rain. Areas of fog. Otherwise, cloudy, with a low around 67. Calm wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Heavy Rain
    and Areas Fog

    Low: 67 °F

  • Tuesday

    Tuesday: Showers and thunderstorms likely before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then showers and thunderstorms likely after 2pm. Some of the storms could produce heavy rain. Areas of fog before 8am. Otherwise, cloudy, with a high near 78. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Heavy Rain
    and Areas Fog

    High: 78 °F

  • Tuesday
    Night

    Tuesday Night: Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and midnight, then a chance of showers after midnight. Areas of fog after 1am. Otherwise, mostly cloudy, with a low around 64. Light and variable wind. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    T-storms
    Likely then
    Chance
    Showers and
    Areas Fog

    Low: 64 °F

  • Wednesday

    Wednesday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Areas of fog before 7am. Otherwise, cloudy, with a high near 79. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Showers
    Likely and
    Areas Fog

    High: 79 °F

  • Wednesday
    Night

    Wednesday Night: Showers and thunderstorms likely before 11pm, then a chance of showers. Mostly cloudy, with a low around 65. Southeast wind 3 to 5 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Showers
    Likely

    Low: 65 °F

  • Thursday

    Thursday: A chance of showers, then showers and thunderstorms likely after 11am. Mostly cloudy, with a high near 83. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Chance
    Showers then
    T-storms
    Likely

    High: 83 °F

  • Thursday
    Night

    Thursday Night: Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers likely after 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 70%.

    T-storms
    Likely then
    Showers
    Likely

    Low: 65 °F

  • Friday

    Friday: A chance of showers before 2pm. Partly sunny, with a high near 78. Chance of precipitation is 30%.

    Chance
    Showers

    High: 78 °F

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm. Some of the storms could produce heavy rain. Areas of fog. Otherwise, cloudy, with a low around 67. Calm wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers and thunderstorms likely before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then showers and thunderstorms likely after 2pm. Some of the storms could produce heavy rain. Areas of fog before 8am. Otherwise, cloudy, with a high near 78. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and midnight, then a chance of showers after midnight. Areas of fog after 1am. Otherwise, mostly cloudy, with a low around 64. Light and variable wind. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Areas of fog before 7am. Otherwise, cloudy, with a high near 79. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers and thunderstorms likely before 11pm, then a chance of showers. Mostly cloudy, with a low around 65. Southeast wind 3 to 5 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers, then showers and thunderstorms likely after 11am. Mostly cloudy, with a high near 83. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers likely after 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 70%.
Friday
A chance of showers before 2pm. Partly sunny, with a high near 78. Chance of precipitation is 30%.
Friday Night
Mostly clear, with a low around 58.
Saturday
Sunny, with a high near 80.
Saturday Night
Partly cloudy, with a low around 59.
Sunday
Mostly sunny, with a high near 81.
Sunday Night
A chance of showers. Partly cloudy, with a low around 63. Chance of precipitation is 30%.
Monday
A chance of showers. Partly sunny, with a high near 85. Chance of precipitation is 40%.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Princeton NJ
 40.35°N 74.67°W (Elev. 190 ft)
Last Update:
3:40 am EDT Jun 18, 2019
Forecast Valid:
4am EDT Jun 18, 2019-6pm EDT Jun 24, 2019
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation