Areas of Severe Thunderstorms and Heat

Scattered severe thunderstorms and excessive rainfall are possible today in the Mid Atlantic, posing a risk for damaging winds and isolated flash flooding. Extreme Heat Warnings are in effect today for northeast Texas into southern Oklahoma and Arkansas. Extreme Heat Warnings are also in effect for the Desert Southwest today into Sunday. Read More >

Hazardous Weather Conditions

Flood Watch until August 21, 02:00 AM EDT

Current conditions at

Somerville, Somerset Airport (KSMQ)

Lat: 40.62°NLon: 74.67°WElev: 105ft.

Light Rain Fog/Mist

74°F

23°C

Humidity	91%
Wind Speed	Calm
Barometer	29.96 in (1014.5 mb)
Dewpoint	71°F (22°C)
Visibility	5.00 mi
Last update	20 Aug 1:53 pm EDT

More Information:

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

Extended Forecast for

2 Miles SW Mendham NJ

Flood Watch August 20, 02:37pm until August 21, 02:00am

Click here for hazard details and duration

Flood Watch

Flood Watch August 20, 02:37pm until August 21, 02:00am
NOW until 2:00am Fri
Flood Watch
This Afternoon
High: 80 °F
Heavy Rain
Tonight
Low: 60 °F
Heavy Rain
then Slight
Chance
Showers
Friday
High: 79 °F
Mostly Sunny
Friday Night
Low: 62 °F
Increasing
Clouds
Saturday
High: 77 °F
Showers
Likely
Saturday Night
Low: 63 °F
Showers
Likely
Sunday
High: 81 °F
Partly Sunny
then Chance
T-storms
Sunday Night
Low: 59 °F
Chance
T-storms then
Mostly Clear

Detailed Forecast

This Afternoon

Showers and thunderstorms, mainly after 3pm. Some of the storms could produce heavy rainfall. High near 80. Calm wind becoming south around 5 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

Tonight

Showers and thunderstorms before midnight, then a slight chance of showers after 3am. Some of the storms could produce heavy rainfall. Low around 60. Northeast wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

Friday

Mostly sunny, with a high near 79. Northeast wind around 5 mph.

Friday Night

Increasing clouds, with a low around 62. Calm wind.

Saturday

A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 77. East wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday Night

Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday

A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 50%.

Sunday Night

A chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 59. Chance of precipitation is 30%.

Monday

Sunny, with a high near 78.

Monday Night

Mostly clear, with a low around 57.

Tuesday

Sunny, with a high near 79.

Tuesday Night

Mostly clear, with a low around 59.