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Mercer County, NJ
 Details for Mercer County, NJ Flood Watch
Flood Watch FLOOD WATCH - 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: @ 09-Jul-2025 8:00am - next update at 8:05am  
Summary / Temperature Wind Rain Outlook
Sunny, Humid Sunny, Humid
Currently: 73.8, Max: 73.8, Min: 72.1 73.8°F
Warmer 0.6°F than last hour.

Comfortable

Feels like: 70.1°F

24-hr difference
-2.5°FColder 2.5°F than yesterday at this time.
  Today Yesterday
High: 73.8°F
7:48am 		97.7°F
3:41pm
Low: 72.1°F
3:55am 		72.1°F
8:16pm
Calm S
0
Gust:
 0 mph
0 Bft - Calm
Today: 10.4 mph 12:48am
Gust Month: 19.9 mph July 3
Rain Today: 0 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0.3 in
Storm Rain: 0 in
This Month: 2.08 in
Season Total: 22.4 in
5 rain days in July.
Wednesday

Wednesday: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Humidity & Barometer Almanac Moon
Humidity: 97 % Decreased 2.0% since last hour.
Dew Point: 72.9°F  
Barometer: 30.04 inHg Rising 0.01 inHg/hr
Baro Trend: Steady
Sunrise: 5:38am
Sunset: 8:32pm
Moonset: 3:56am
Moonrise: 7:21pm
Waxing Gibbous
Waxing Gibbous, Moon at 13 days in cycle
98%
Illuminated
UV Index Solar Radiation
   1.0     Low 
High: 2.0 @ 7:53am
119 W/m2 (69 %)
High: 140 @  7:56am
 NWS Weather Forecast  - Outlook: Overnight & Wednesday
Overnight

Overnight: Patchy Fog
Patchy Fog

Lo 71 °F		 NWS forecast: Patchy fog. Mostly cloudy, with a low around 71. Southwest wind around 0 mph.
 
Wednesday

Wednesday: Chance Showers And Thunderstorms
Chance Showers And T-Storms

Hi 89 °F		 NWS forecast: Patchy fog before 8am, then a slight chance of rain showers between 8am and 11am, then a chance of showers and thunderstorms. Partly sunny, with a high near 89. West wind 0 to 5 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.