Princeton Weather: Heat and Air Quality Alert Loom Over Sunny Afternoon - Sep 22, 2 PM

Princeton weather, updated every four hours — local forecasts you can trust.

Princeton residents face an active Air Quality Alert alongside intense heat. Current temperatures are 93F, feeling like 98F, with a high near 97F expected today. Stay hydrated and monitor air quality.

Vera Yoder

September 22, 20262 min read

*As of Sep 22, 2 PM local time.*

Current Conditions and Heat

An active Air Quality Alert is currently in effect for the Princeton area, issued by the National Weather Service. While the severity and urgency details are not specified, residents should remain aware of potential respiratory impacts. The immediate weather is dominated by intense heat.

It is currently Tuesday afternoon, with the air temperature sitting at 93F. The combination of heat and humidity makes it feel like 98F. Relative humidity is at 44%, and the dew point is 68F.

The sky is clear, and winds are blowing from the north northeast at 13 mph, with gusts recorded at 10 mph.

Today and Tonight Outlook

The day will remain sunny, with the high temperature reaching near 97F. Heat index values could climb as high as 100F, making the perceived temperature significantly higher than the actual air temperature. The chance of precipitation is minimal at 5%.

As the day transitions to evening, the sky will remain mostly clear. Temperatures will drop to a low around 73F. Northeast winds will shift to a range of 5 to 10 mph.

Even in the cooler evening hours, heat index values may still reach 99F, so the air will remain warm.

Tomorrow's Forecast

Tomorrow will bring mostly sunny skies. The high temperature is expected to be near 96F, though temperatures may fall to around 94F in the afternoon. The heat index could peak at 103F, indicating extreme perceived heat.

East northeast winds will blow around 10 mph. The chance of rain is very low at 2%. As tomorrow moves into the night, conditions will become partly cloudy with a low around 70F.

East winds will slow to 5 to 10 mph. Given the sustained high heat indices and the active air quality alert, it is wise to limit midday exertion, stay well-hydrated, and check on vulnerable neighbors. Monitor local updates for any changes in air quality conditions.

Sources

National Weather Service radar

National Weather Service forecast data

Open-Meteo weather data

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