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Mercer County, NJ
 Details for Mercer County, NJ Dense Fog Advisory
Dense Fog Advisory DENSE FOG ADVISORY - 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: @ 10-May-2026 9:50am - next update at 9:55am  
Summary / Temperature Wind Rain Outlook
Mainly cloudy, Haze Mainly cloudy, Haze
Currently: 55.4, Max: 55.4, Min: 46.6 55.4°F
Warmer 1.6°F than last hour.

Cool

Feels like: 55°F

24-hr difference
-7.3°FColder 7.3°F than yesterday at this time.
  Today Yesterday
High: 55.4°F
9:47am 		68.4°F
11:22am
Low: 46.6°F
3:07am 		49.3°F
11:49pm
Calm SW
0
Gust:
 0 mph
0 Bft - Calm
Today: 10.4 mph 5:02am
Gust Month: 30.0 mph May 5
Rain Today: 0 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0.12 in
Storm Rain: 0 in
This Month: 0.43 in
Season Total: 7.98 in
3 rain days in May.
Tonight

Tonight: Chance Rain Showers
Chance Rain Showers
Humidity & Barometer Almanac Moon
Humidity: 99 %  
Dew Point: 55.1°F Increased 1.6°F since last hour.
Barometer: 29.92 inHg  
Baro Trend: Steady
Sunrise: 5:48am
Sunset: 8:03pm
Moonrise: 2:27am
Moonset: 1:09pm
Waning Crescent
Waning Crescent, Moon at 22 days in cycle
43%
Illuminated
UV Index Solar Radiation
   2.0     Low 
High: 3.0 @ 9:43am
165 W/m2 (32 %)
High: 203 @  9:44am
 NWS Weather Forecast  - Outlook: Today & Tonight
Today

Today: Mostly Sunny then Slight Chance Rain Showers
Mostly Sunny then Slight Chance Rain Showers

Hi 79 °F		 NWS forecast: A slight chance of rain showers after 3pm. Mostly sunny, with a high near 79. West wind 0 to 10 mph. Chance of precipitation is 20%.
 
Tonight

Tonight: Chance Rain Showers
Chance Rain Showers

Lo 49 °F		 NWS forecast: A chance of rain showers. Mostly cloudy, with a low around 49. Northwest wind 0 to 10 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.