Princeton (08540) Daily Weather Forecast

Weather Shift Brings Triple-Digit Temperatures To NJ Thursday

After a Wednesday peppered with heavy rainfall, the heat index will surge as high as 103 degrees Thursday.

Princeton Opens Cooling Centers As Extreme Heat Warning Takes Effect Wednesday

The National Weather Service warns of heat index values up to 107 degrees from 10 a.m. to 8 p.m.

Flood Watch Issued For Princeton Area Through Midnight

Heavy downpours of 1 to 2 inches per hour could bring flash flooding to Mercer County.

Flood Watch Issued For Mercer County Through Monday Evening

Forecasters say over 2 inches of rain per hour is possible, raising flash flood risk.

Princeton Opens Cooling Centers Ahead Of Dangerous July 4 Weekend Heat

An Extreme Heat Warning remains in effect through Saturday, with the worst conditions expected Thursday and Friday.

High Heat Triggers Air Quality Alert In Princeton

Temperatures will rise into the 90s on Monday and continue to rise into Tuesday and Wednesday in the area.

Storm Downs Trees, Causes Flooding, Closes Roads In Princeton

Flooding and downed trees have shut down several roads in Princeton until further notice following Monday's powerful storm.

Is The February 2026 Blizzard The Biggest? Here's Where It Ranks in NJ History

New Jersey has seen some of the most punishing snowstorms on the East Coast. Here's how its biggest blizzards stack up:

Updated Snow Totals, No School, Late Openings: What To Expect In Princeton

Hazardous conditions persist across Princeton as police urge residents to stay off the roads and plow crews work around the clock.

Princeton Schools, Courts, Bus Service Suspended Monday As Blizzard Slams NJ

A state of emergency is in effect as the winter storm threatens up to 20 inches of snow. Here's what Princeton residents need to know about:

Snow Totals: How Much Did Princeton Get?

While we didn't receive as much snow as in North Jersey, Mercer County did get enough for schools to close on Monday. See how much:

Princeton Prepares For Major Winter Storm: Latest Forecast, How To Prepare

From Saturday night through Monday morning, Princeton is expected to get between 12 to 18 inches of snow.

Here's How Snowy You Can Expect This Winter To Be In NJ

The Farmers' Almanac's new long-range forecasts and winter predictions are out. See what's in store:

Flood Watch In Effect Until 10 P.M. In Princeton, Residents Urged to Avoid Flooded Roads

Local officials have asked residents to avoid flooded or barricaded roads.

Princeton Opens Cooling Centers Amid Dangerously Hot Temperatures

An extreme heat warning and air quality alert were issued until Wednesday.

Princeton Opens Warming Centers As Temperatures Dip Monday

The centers will provide a warm, safe space for residents in need.

Princeton Opens Cooling Centers Due To Incoming Heat Wave

The Municipality has opened cooling centers in several areas.

Weekend Super Soaker Prompts Flood Watch In Mercer County

A predicted 1 to 2 inches of rainfall is predicted which will add to the multiple rounds of rainfall the area has seen this past week.

Excessive Rainfall Possible, Flood Watch Issued For Mercer County

With wet conditions and elevated creeks and streams, some flooding is possible with another 1.5 to 2.5 inches of rain expected.

Snow Totals In Mercer County: How Much Fell?

A snowstorm dropped wet and heavy snow across the area prompting schools to close. But how much fell?

62 MPH Winds, 2.9 Inches Of Rain: See Totals In Mercer County

Several roads remain flooded and closed across the county after Tuesday's storm.

Heavy Rains Cause Flooding, Downed Wires, Road Closures In Princeton

Several local roads are closed due to storm damage. See list:

How Much Rain Fell In Princeton? See Latest Totals

The remnants of Tropical Storm Ophelia soaked the township over the weekend. The area could receive more rain on Tuesday.

Amid Excessive Heat, Here's Where You Can Cool Down In Mercer County

Mercer County is under a heat advisory until 8 p.m. Saturday. Here's where you can cool off:

Severe Thunderstorm Watch Issued For Mercer County: See The Timeline

As if the heatwave wasn't enough, forecasters said showers and thunderstorms are 'likely' later Thursday. See the latest timeline:

Air Quality Alert Issued For Mercer County Through Thursday

The air quality will be unhealthy for sensitive groups, according to the NJ Department of Environmental Protection.

Hazardous Weather, Flood Watch Extended Through Wednesday In Princeton

Wet weather with scattered storms is expected to linger until mid-week, according to forecasters.

Hazardous Weather Outlook Issued For Princeton

The National Weather Service has issued a hazardous weather outlook for Princeton. See what's on the forecast:

Severe Thunderstorm Warning Issued For Mercer County

Some storms could produce hail and damaging winds, forecasters said. See storm timings:

How To Check The Air Quality In Princeton

With air quality a concern, here are tips on how to stay safe and check the conditions in your area, as the Canadian wildfires burn:

Princeton Schools Making Modifications To Improve Air Inside Building

The district is also distributing portable air scrubbers to all schools. Outdoor activities have been canceled owing to poor air quality.

Code Orange Air Quality Alert Remains Effective In Princeton

An Air Quality Alert has been issued for Wednesday due to the Canadian Wildfires. Sensitive groups have been asked to take precautions.

Smoke, Burning Odor In Princeton Due To Canadian Wildfires: Police

Princeton Police issued an alert on Tuesday evening.

Tornado Warnings Issued For Ocean, Mercer, Monmouth Counties

The warning is in effect until 7:45 p.m. for northwestern Ocean, southeastern Mercer and southwestern Monmouth counties.

Tornadoes, Severe Storms Possible Saturday In NJ

The threat of severe weather, including possible tornadoes, is increasing for later Saturday afternoon and evening. Here's the latest:

Remembering Superstorm Sandy In Princeton 10 Years Later

Princeton Borough and Township saw power outages, flooding & the death of a longtime resident as Superstorm Sandy hit NJ 10 years ago.

Soggy Weather Triggers Flood Watch In Mercer County

The watch is in effect through 8 p.m. on Tuesday. See what's in store for the rest of the week.

Prepare For Hurricane Season, Mercer Co. Executive Advises Residents

the Atlantic hurricane season runs from June 1 through Nov. 30. But the peak time in New Jersey is mid-August to late October.

Mercer Co. Gets Heavy Wind, Rain Monday: Rain Totals, Forecast

Monday night's nor'easter brought heavy rain and wind to Mercer County. See rain totals:

Winter Weather Advisory Issued In Princeton Until Friday Morning

Commuters should expect slippery road conditions during the Friday morning commute, forecasters and police said. ​​