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

Morristown Airport (KMMU)

Lat: 40.8°NLon: 74.42°WElev: 187ft.

Overcast

45°F

7°C

Humidity 100%
Wind Speed Calm
Barometer 29.70 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 12 Nov 3:35 am EST
Extended Forecast for

Picatinny Arsenal NJ

  • Overnight

    Overnight: Showers likely, mainly before 4am. Cloudy, with a low around 45. Calm wind becoming east around 5 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 45 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then showers after 4pm. High near 53. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 53 °F

    Showers

  • Thursday Night

    Thursday Night: Rain. Low around 35. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 35 °F

    Rain

  • Friday

    Friday: Rain, possibly mixed with snow, becoming all rain after 10am. High near 41. North wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 41 °F

    Rain/Snow
    then Rain

  • Friday Night

    Friday Night: A slight chance of rain and snow before 10pm, then a slight chance of snow between 10pm and 1am. Mostly cloudy, with a low around 31. Northwest wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 31 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Snow

  • Saturday

    Saturday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

Detailed Forecast

Overnight
Showers likely, mainly before 4am. Cloudy, with a low around 45. Calm wind becoming east around 5 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Showers before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then showers after 4pm. High near 53. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday Night
Rain. Low around 35. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain, possibly mixed with snow, becoming all rain after 10am. High near 41. North wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Friday Night
A slight chance of rain and snow before 10pm, then a slight chance of snow between 10pm and 1am. Mostly cloudy, with a low around 31. Northwest wind 5 to 10 mph. Chance of precipitation is 20%.
Saturday
Partly sunny, with a high near 44.
Saturday Night
Partly cloudy, with a low around 31.
Sunday
Mostly sunny, with a high near 47.
Sunday Night
Partly cloudy, with a low around 32.
Monday
Mostly sunny, with a high near 48.
Monday Night
Mostly clear, with a low around 29.
Tuesday
Sunny, with a high near 50.
Tuesday Night
Partly cloudy, with a low around 29.
Wednesday
Sunny, with a high near 54.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Picatinny Arsenal NJ
 40.93°N 74.56°W (Elev. 965 ft)
Last Update:
5:58 pm EST Nov 11, 2026
Forecast Valid:
3am EST Nov 12, 2026-6pm EST Nov 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation