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

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across much of northeast Texas into the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Saturday could bring areas of flooding across parts of the central Plains into the upper Midwest/Great Lakes, and Four Corners states. Read More >

Current conditions at

Somerville, Somerset Airport (KSMQ)

Lat: 40.62°NLon: 74.67°WElev: 105ft.

Partly Cloudy

67°F

19°C

Humidity 100%
Wind Speed Calm
Barometer 30.25 in (1024.3 mb)
Dewpoint 67°F (19°C)
Visibility 7.00 mi
Last update 17 Sep 1:53 am EDT
Extended Forecast for

Watchung NJ

  • Overnight

    Overnight: Mostly cloudy, with a low around 65. Southwest wind around 5 mph becoming calm.

    Low: 65 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 83. Light southwest wind increasing to 5 to 10 mph in the morning.

    High: 83 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 67. South wind around 5 mph becoming west after midnight. Chance of precipitation is 20%.

    Low: 67 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Friday

    Friday: Sunny, with a high near 81. North wind around 10 mph.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 57. North wind around 5 mph.

    Low: 57 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers after 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 40%.

    Low: 59 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers likely, mainly after 8am. Mostly cloudy, with a high near 72. Chance of precipitation is 70%.

    High: 72 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 50%.

    Low: 58 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 65. Southwest wind around 5 mph becoming calm.
Thursday
Mostly cloudy, with a high near 83. Light southwest wind increasing to 5 to 10 mph in the morning.
Thursday Night
A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 67. South wind around 5 mph becoming west after midnight. Chance of precipitation is 20%.
Friday
Sunny, with a high near 81. North wind around 10 mph.
Friday Night
Partly cloudy, with a low around 57. North wind around 5 mph.
Saturday
Mostly sunny, with a high near 72.
Saturday Night
A chance of showers after 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 40%.
Sunday
Showers likely, mainly after 8am. Mostly cloudy, with a high near 72. Chance of precipitation is 70%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 50%.
Monday
A chance of showers. Mostly cloudy, with a high near 69. Chance of precipitation is 40%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 50%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 68. Chance of precipitation is 40%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 68.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Watchung NJ
 40.63°N 74.47°W (Elev. 410 ft)
Last Update:
6:57 pm EDT Sep 16, 2026
Forecast Valid:
2am EDT Sep 17, 2026-6pm EDT Sep 23, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation