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

Somerville, Somerset Airport (KSMQ)

Lat: 40.62°NLon: 74.67°WElev: 105ft.

Fog/Mist

71°F

22°C

Humidity	100%
Wind Speed	Calm
Barometer	29.99 in (1015.5 mb)
Dewpoint	71°F (22°C)
Visibility	5.00 mi
Last update	30 Jul 6:53 am EDT

More Information:

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

Extended Forecast for

Raritan NJSimilar City Names

Heat Advisory July 30, 07:50am until July 30, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory July 30, 07:50am until July 30, 08:00pm
NOW until 8:00pm Wed
Heat Advisory
Today
High: 99 °F
Sunny then
Slight Chance
T-storms
Tonight
Low: 73 °F
Slight Chance
T-storms then
Partly Cloudy
Thursday
High: 86 °F
Chance
T-storms then
Heavy Rain
Thursday Night
Low: 64 °F
Heavy Rain
Friday
High: 71 °F
Showers
Friday Night
Low: 58 °F
Slight Chance
Showers
Saturday
High: 81 °F
Sunny
Saturday Night
Low: 57 °F
Mostly Clear

Detailed Forecast

Today

A slight chance of showers and thunderstorms after 3pm. Sunny and hot, with a high near 99. Heat index values as high as 104. 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 4am. Partly cloudy, with a low around 73. 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 86. East 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 64. Northeast wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Friday

Showers and possibly a thunderstorm. High near 71. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Friday Night

A slight chance of showers before 2am. Mostly cloudy, with a low around 58. Chance of precipitation is 20%.

Saturday

Sunny, with a high near 81.

Saturday Night

Mostly clear, with a low around 57.

Sunday

Sunny, with a high near 84.

Sunday Night

Mostly clear, with a low around 59.

Monday

Mostly sunny, with a high near 87.