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Severe Thunderstorms With Heavy Rain Possible In The Upper Midwest; Excessive Heat For Central U.S.

Several rounds of strong to severe thunderstorms will be possible from the northern Plains and upper Midwest to the Great Lakes through Friday. Damaging winds, large hail, and flooding will be the primary threats with these storms. Excessive heat will grip the central Plains with heat indices approaching 105 to 110 degrees. Very hot and humid conditions are likely to expand into the Mid Atlantic. Read More >

Current conditions at

Trenton, Mercer County Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fair

92°F

33°C

Humidity 49%
Wind Speed NW 8 G 17 mph
Barometer 29.96 in (1013.6 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 20 Jul 12:53 pm EDT
Extended Forecast for

Princeton NJ

Excessive Heat Warning until July 21, 08:00pm
Click here for hazard details and duration
Excessive Heat Warning
  •  
    Excessive Heat Warning until July 21, 08:00pm

    NOW until
    8:00pm Fri

    Excessive Heat Warning

  • This
    Afternoon

    This Afternoon: A slight chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 95. Heat index values as high as 104. West wind around 8 mph.  Chance of precipitation is 20%.

    Slight Chance
    T-storms

    High: 95 °F

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between 8pm and 2am.  Partly cloudy, with a low around 73. Southwest wind around 6 mph.  Chance of precipitation is 20%.

    Slight Chance
    T-storms

    Low: 73 °F

  • Friday

    Friday: Mostly sunny, with a high near 93. Northwest wind around 7 mph.

    Mostly Sunny

    High: 93 °F

  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 71. Northwest wind around 5 mph becoming calm  in the evening.

    Partly Cloudy

    Low: 71 °F

  • Saturday

    Saturday: A chance of showers and thunderstorms.  Partly sunny, with a high near 88. Light and variable wind.  Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Chance
    T-storms

    High: 88 °F

  • Saturday
    Night

    Saturday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 72. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Chance
    T-storms

    Low: 72 °F

  • Sunday

    Sunday: A chance of showers and thunderstorms.  Mostly cloudy, with a high near 88. Chance of precipitation is 50%.

    Chance
    T-storms

    High: 88 °F

  • Sunday
    Night

    Sunday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 71. Chance of precipitation is 40%.

    Chance
    T-storms

    Low: 71 °F

Detailed Forecast

This Afternoon
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 95. Heat index values as high as 104. West wind around 8 mph. Chance of precipitation is 20%.
Tonight
A slight chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 73. Southwest wind around 6 mph. Chance of precipitation is 20%.
Friday
Mostly sunny, with a high near 93. Northwest wind around 7 mph.
Friday Night
Partly cloudy, with a low around 71. Northwest wind around 5 mph becoming calm in the evening.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 88. Light and variable wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 88. Chance of precipitation is 50%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 40%.
Monday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 85. Chance of precipitation is 40%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 81.
Tuesday Night
Partly cloudy, with a low around 64.
Wednesday
Mostly sunny, with a high near 81.
Click Map For Forecast
Point Forecast:
Princeton NJ
 40.35°N 74.67°W (Elev. 190 ft)
12:03 pm EDT Jul 20, 2017
1pm EDT Jul 20, 2017-6pm EDT Jul 26, 2017
 
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