Briefing for Heat, Severe Storm, and Flash Flood Risks through Thursday

Dangerously hot and humid conditions are expected through Wednesday. There is also a threat of isolated severe thunderstorms on Wednesday. Flash flooding from locally heavy rainfall is possible on Thursday. See this briefing for details on these hazards. Read More >

Hazardous Weather Conditions

Current conditions at

Morristown Airport (KMMU)

Lat: 40.8°NLon: 74.42°WElev: 187ft.

Partly Cloudy

79°F

26°C

Humidity	89%
Wind Speed	Calm
Barometer	30.02 in
Dewpoint	75°F (24°C)
Visibility	10.00 mi
Heat Index	83°F (28°C)
Last update	30 Jul 7:50 am EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Mendham NJ

Heat Advisory July 30, 08:07am until July 30, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory July 30, 08:07am until July 30, 08:00pm
NOW until 8:00pm Wed
Heat Advisory
Today
High: 96 °F
Sunny then
Slight Chance
T-storms
Tonight
Low: 72 °F
Slight Chance
T-storms
Thursday
High: 82 °F
Chance
T-storms then
Heavy Rain
Thursday Night
Low: 62 °F
Heavy Rain
Friday
High: 68 °F
Showers
Friday Night
Low: 57 °F
Slight Chance
Showers
Saturday
High: 77 °F
Sunny
Saturday Night
Low: 56 °F
Mostly Clear

Detailed Forecast

Today

A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 96. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 20%.

Tonight

A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 72. Calm wind. Chance of precipitation is 20%.

Thursday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 82. Northeast wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Thursday Night

Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 62. Northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

Friday

Showers and possibly a thunderstorm. High near 68. Northeast wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Friday Night

A slight chance of showers before 2am. Partly cloudy, with a low around 57. Chance of precipitation is 20%.

Saturday

Sunny, with a high near 77.

Saturday Night

Mostly clear, with a low around 56.

Sunday

Sunny, with a high near 81.

Sunday Night

Mostly clear, with a low around 58.

Monday

Mostly sunny, with a high near 83.