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

Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Current conditions at

Somerville, Somerset Airport (KSMQ)

Lat: 40.62°NLon: 74.67°WElev: 105ft.

Fair

52°F

11°C

Humidity 97%
Wind Speed Calm
Barometer 30.28 in (1025.3 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 3 Oct 11:53 pm EDT
Extended Forecast for

Dayton NJ

  • Overnight

    Overnight: Partly cloudy, with a low around 55. Northeast wind around 5 mph.

    Low: 55 °F

    Partly Cloudy

  • Sunday

    Sunday: Showers likely, mainly after 5pm. Mostly cloudy, with a high near 65. East wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 65 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers, mainly before 8pm. Patchy fog after midnight. Otherwise, cloudy, with a low around 57. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 57 °F

    Chance
    Showers and
    Patchy Fog

  • Monday

    Monday: Mostly cloudy through mid morning, then gradual clearing, with a high near 70. Northwest wind 5 to 15 mph.

    High: 70 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 44. Northwest wind around 5 mph.

    Low: 44 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 43.

    Low: 43 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 55. Northeast wind around 5 mph.
Sunday
Showers likely, mainly after 5pm. Mostly cloudy, with a high near 65. East wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A chance of showers, mainly before 8pm. Patchy fog after midnight. Otherwise, cloudy, with a low around 57. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly cloudy through mid morning, then gradual clearing, with a high near 70. Northwest wind 5 to 15 mph.
Monday Night
Clear, with a low around 44. Northwest wind around 5 mph.
Tuesday
Sunny, with a high near 64.
Tuesday Night
Clear, with a low around 43.
Wednesday
Sunny, with a high near 68.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Sunny, with a high near 73.
Thursday Night
Mostly clear, with a low around 50.
Friday
Sunny, with a high near 71.
Friday Night
Partly cloudy, with a low around 51.
Saturday
Mostly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Dayton NJ
 40.39°N 74.49°W (Elev. 98 ft)
Last Update:
8:34 pm EDT Oct 3, 2026
Forecast Valid:
12am EDT Oct 4, 2026-6pm EDT Oct 10, 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