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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Somerville, Somerset Airport (KSMQ)

Lat: 40.62°NLon: 74.67°WElev: 105ft.

Fair

71°F

22°C

Humidity 59%
Wind Speed Vrbl 3 mph
Barometer 30.14 in (1020.6 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 19 Sep 3:53 pm EDT
Extended Forecast for

Glen Gardner NJ

  • Tonight

    Tonight: A chance of showers, mainly after 5am. Mostly cloudy, with a low around 57. Calm wind becoming southeast around 5 mph. Chance of precipitation is 30%.

    Low: 57 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers, with thunderstorms also possible after 5pm. High near 71. Southeast wind around 5 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 71 °F

    Showers

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and midnight. Cloudy, then gradually becoming partly cloudy, with a low around 56. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 56 °F

    Showers
    Likely then
    Mostly Cloudy

  • Monday

    Monday: A slight chance of showers after 2pm. Increasing clouds, with a high near 68. Northeast wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 68 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers, mainly after 2am. Mostly cloudy, with a low around 51. Northeast wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 51 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers. Mostly cloudy, with a high near 62. Chance of precipitation is 40%. New precipitation amounts between a quarter and half of an inch possible.

    High: 62 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 62.

    High: 62 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A chance of showers, mainly after 5am. Mostly cloudy, with a low around 57. Calm wind becoming southeast around 5 mph. Chance of precipitation is 30%.
Sunday
Showers, with thunderstorms also possible after 5pm. High near 71. Southeast wind around 5 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and midnight. Cloudy, then gradually becoming partly cloudy, with a low around 56. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Monday
A slight chance of showers after 2pm. Increasing clouds, with a high near 68. Northeast wind 5 to 10 mph. Chance of precipitation is 20%.
Monday Night
A chance of showers, mainly after 2am. Mostly cloudy, with a low around 51. Northeast wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
A chance of showers. Mostly cloudy, with a high near 62. Chance of precipitation is 40%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Mostly cloudy, with a low around 49.
Wednesday
Mostly cloudy, with a high near 62.
Wednesday Night
Mostly cloudy, with a low around 49.
Thursday
A chance of showers after 2pm. Mostly cloudy, with a high near 60. Chance of precipitation is 30%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 48. Chance of precipitation is 30%.
Friday
A chance of showers. Mostly cloudy, with a high near 64. Chance of precipitation is 30%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 50. Chance of precipitation is 30%.
Saturday
A chance of showers. Partly sunny, with a high near 67. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Glen Gardner NJ
 40.69°N 74.95°W (Elev. 673 ft)
Last Update:
4:09 pm EDT Sep 19, 2026
Forecast Valid:
4pm EDT Sep 19, 2026-6pm EDT Sep 26, 2026
 
Forecast Discussion
 
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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