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

Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Current conditions at

Morristown Airport (KMMU)

Lat: 40.8°NLon: 74.42°WElev: 187ft.

Mostly Cloudy

68°F

20°C

Humidity 94%
Wind Speed Calm
Barometer 29.77 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 18 Jun 2:15 am EDT
Extended Forecast for

Brookside NJ

  • Overnight

    Overnight: Cloudy, with a low around 64. South wind around 5 mph.

    Low: 64 °F

    Cloudy

  • Thursday

    Thursday: Showers and thunderstorms likely before 11am, then a chance of showers between 11am and 2pm, then a chance of showers and thunderstorms after 2pm. Cloudy through mid morning, then gradual clearing, with a high near 87. Breezy, with a south wind 10 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Showers
    Likely then
    Chance
    T-storms and
    Breezy

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 63. West wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 63 °F

    Increasing
    Clouds

  • Juneteenth

    Juneteenth: Mostly cloudy, then gradually becoming sunny, with a high near 81. West wind around 10 mph, with gusts as high as 25 mph.

    High: 81 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Clear, with a low around 58. West wind around 5 mph.

    Low: 58 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Sunday Night

    Sunday Night: A chance of showers after 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 50%.

    Low: 59 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
Cloudy, with a low around 64. South wind around 5 mph.
Thursday
Showers and thunderstorms likely before 11am, then a chance of showers between 11am and 2pm, then a chance of showers and thunderstorms after 2pm. Cloudy through mid morning, then gradual clearing, with a high near 87. Breezy, with a south wind 10 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Increasing clouds, with a low around 63. West wind 10 to 15 mph, with gusts as high as 25 mph.
Juneteenth
Mostly cloudy, then gradually becoming sunny, with a high near 81. West wind around 10 mph, with gusts as high as 25 mph.
Friday Night
Clear, with a low around 58. West wind around 5 mph.
Saturday
Sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Sunny, with a high near 81.
Sunday Night
A chance of showers after 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 50%.
Monday
Showers, mainly after 8am. High near 77. Chance of precipitation is 80%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 40%.
Tuesday
Mostly sunny, with a high near 81.
Tuesday Night
Mostly clear, with a low around 60.
Wednesday
Mostly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Brookside NJ
 40.78°N 74.61°W (Elev. 518 ft)
Last Update:
4:08 pm EDT Jun 17, 2026
Forecast Valid:
2am EDT Jun 18, 2026-6pm EDT Jun 24, 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