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Mercer County, NJ
 Details for Mercer County, NJ Heat Advisory  +1 additional alert
Heat Advisory HEAT ADVISORY - Mercer County, NJ
Special Weather Statement SPECIAL WEATHER STATEMENT - Mercer County, NJ

NWS Northeast Regional Radar WU North East Satellite
Radar/Satellite images courtesy of NOAA/NWS and Weather Underground.
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Updated: @ 18-Jun-2025 6:55am - next update at 7:00am  
Summary / Temperature Wind Rain Outlook
Sunny, Haze Sunny, Haze
Currently: 67.5, Max: 68.4, Min: 66.9 67.5°F
Warmer 0.4°F than last hour.

Comfortable

Feels like: 67.5°F

24-hr difference
6.2°FWarmer 6.2°F than yesterday at this time.
  Today Yesterday
High: 68.4°F
12:00am 		74.5°F
6:56pm
Low: 66.9°F
5:33am 		60.8°F
12:00am
Calm SSE
0
Gust:
 0 mph
0 Bft - Calm
Today: 7.4 mph 2:37am
Gust Month: 19.9 mph June 6
Rain Today: 0.07 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0 in
Storm Rain: 0 in
This Month: 1.35 in
Season Total: 19.15 in
7 rain days in June.
Wednesday

Wednesday: Areas Of Drizzle then Showers And Thunderstorms Likely
Areas Of Drizzle then Showers And T-Storms Likely
Humidity & Barometer Almanac Moon
Humidity: 99 %  
Dew Point: 67.2°F Increased 0.4°F since last hour.
Barometer: 29.93 inHg  
Baro Trend: Steady
Sunrise: 5:29am
Sunset: 8:32pm
Moonrise: 12:53am
Moonset: 12:50pm
Waning Gibbous
Waning Gibbous, Moon at 21 days in cycle
54%
Illuminated
UV Index Solar Radiation
   1.0     Low 
High: 1.0 @ 6:50am
18 W/m2 (60 %)
High: 18 @  6:55am
 NWS Weather Forecast  - Outlook: Overnight & Wednesday
Overnight

Overnight: Chance Rain Showers
Chance Rain Showers

Lo 66 °F		 NWS forecast: A chance of rain showers and patchy drizzle and patchy fog. Cloudy, with a low around 66. Southeast wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
 
Wednesday

Wednesday: Areas Of Drizzle then Showers And Thunderstorms Likely
Areas Of Drizzle then Showers And T-Storms Likely

Hi 86 °F		 NWS forecast: Areas of drizzle and areas of fog and a chance of rain showers before 11am, then showers and thunderstorms likely between noon and 5pm, then showers and thunderstorms. Cloudy, with a high near 86. South wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.