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

Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

Morristown Airport (KMMU)

Lat: 40.8°NLon: 74.42°WElev: 187ft.

Mostly Cloudy

91°F

33°C

Humidity 52%
Wind Speed SW 8 mph
Barometer 29.86 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 17 Aug 2:45 pm EDT
Extended Forecast for

Parsippany-troy Hills Townshi NJ

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 92. West wind around 10 mph.

    High: 92 °F

    Mostly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 4am. Mostly cloudy, with a low around 64. Northwest wind 5 to 10 mph becoming north in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 64 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 75. Northeast wind 5 to 15 mph. Chance of precipitation is 30%.

    High: 75 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers, mainly before 8pm. Mostly cloudy, with a low around 61. East wind around 5 mph. Chance of precipitation is 30%.

    Low: 61 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers. Partly sunny, with a high near 77. East wind around 5 mph. Chance of precipitation is 20%.

    High: 77 °F

    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms, then a chance of showers after 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers. Mostly cloudy, with a high near 78. Chance of precipitation is 40%.

    High: 78 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.

    Low: 62 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers after 2pm. Mostly sunny, with a high near 82. Chance of precipitation is 30%.

    High: 82 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 92. West wind around 10 mph.
Tonight
A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 4am. Mostly cloudy, with a low around 64. Northwest wind 5 to 10 mph becoming north in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts between a quarter and half of an inch possible.
Monday
A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 75. Northeast wind 5 to 15 mph. Chance of precipitation is 30%.
Monday Night
A chance of showers, mainly before 8pm. Mostly cloudy, with a low around 61. East wind around 5 mph. Chance of precipitation is 30%.
Tuesday
A slight chance of showers. Partly sunny, with a high near 77. East wind around 5 mph. Chance of precipitation is 20%.
Tuesday Night
A slight chance of showers and thunderstorms, then a chance of showers after 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers. Mostly cloudy, with a high near 78. Chance of precipitation is 40%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.
Thursday
A chance of showers after 2pm. Mostly sunny, with a high near 82. Chance of precipitation is 30%.
Thursday Night
A chance of showers before 8pm. Partly cloudy, with a low around 61. Chance of precipitation is 30%.
Friday
Sunny, with a high near 85.
Friday Night
Mostly clear, with a low around 63.
Saturday
Mostly sunny, with a high near 84.
Saturday Night
Partly cloudy, with a low around 65.
Sunday
A chance of showers. Partly sunny, with a high near 86.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Parsippany-troy Hills Townshi NJ
 40.85°N 74.42°W (Elev. 292 ft)
Last Update:
4:22 am EDT Aug 17, 2025
Forecast Valid:
3pm EDT Aug 17, 2025-6pm EDT Aug 24, 2025
 
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