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Hottest day yet as heat wave intensifies in the eastern US. Click for the forecast. Chevron right
4th of July forecast: Where will storms disrupt outdoor plans? Chevron right

Princeton, NJ

100°F
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Princeton

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Princeton, NJ Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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2 PM

100°
RealFeel® 110°
Dangerous Heat
RealFeel Guide
Dangerous Heat
108° to 115°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Hazy sunshine
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday
alerts

Air Quality Alert

8:57 AM Monday - 6:00 PM Thursday

RealFeel Shade™101°

Heat Index107°

WindWNW 8 mph

Air QualityPoor

Max UV Index9.7 (Very High)

Wind Gusts14 mph

Humidity37%

Indoor Humidity37% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover21%

Visibility5 mi

Cloud Ceiling33300 ft

3 PM

100°
RealFeel® 108°
Dangerous Heat
RealFeel Guide
Dangerous Heat
108° to 115°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Hazy sunshine
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday
alerts

Air Quality Alert

8:57 AM Monday - 6:00 PM Thursday

RealFeel Shade™101°

Heat Index106°

WindW 8 mph

Air QualityPoor

Max UV Index7.4 (High)

Wind Gusts16 mph

Humidity36%

Indoor Humidity36% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover31%

Visibility5 mi

Cloud Ceiling30000 ft

4 PM

100°
RealFeel® 105°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Hazy sunshine
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday
alerts

Air Quality Alert

8:57 AM Monday - 6:00 PM Thursday

RealFeel Shade™100°

Heat Index105°

WindW 9 mph

Air QualityPoor

Max UV Index4.8 (Moderate)

Wind Gusts18 mph

Humidity36%

Indoor Humidity36% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover31%

Visibility5 mi

Cloud Ceiling30000 ft

5 PM

98°
RealFeel® 102°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Hazy sunshine
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday
alerts

Air Quality Alert

8:57 AM Monday - 6:00 PM Thursday

RealFeel Shade™99°

Heat Index104°

WindWSW 9 mph

Air QualityPoor

Max UV Index3.4 (Moderate)

Wind Gusts21 mph

Humidity37%

Indoor Humidity37% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover31%

Visibility5 mi

Cloud Ceiling30000 ft

6 PM

96°
RealFeel® 99°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Hazy sunshine
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday

RealFeel Shade™97°

Heat Index101°

WindWSW 8 mph

Air QualityPoor

Max UV Index2.2 (Low)

Wind Gusts16 mph

Humidity39%

Indoor Humidity39% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover31%

Visibility5 mi

Cloud Ceiling30000 ft

7 PM

94°
RealFeel® 98°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Hazy sunshine
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday

RealFeel Shade™96°

Heat Index100°

WindWSW 7 mph

Air QualityPoor

Max UV Index1.2 (Low)

Wind Gusts13 mph

Humidity43%

Indoor Humidity43% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™7 (Bright)

Cloud Cover31%

Visibility5 mi

Cloud Ceiling30000 ft

8 PM

92°
RealFeel® 95°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday

RealFeel Shade™95°

Heat Index97°

WindWSW 6 mph

Air QualityPoor

Max UV Index0.3 (Low)

Wind Gusts8 mph

Humidity49%

Indoor Humidity49% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

89°
RealFeel® 92°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday

Heat Index94°

WindWSW 6 mph

Air QualityPoor

Wind Gusts7 mph

Humidity55%

Indoor Humidity55% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

86°
RealFeel® 89°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday

Heat Index91°

WindWSW 6 mph

Air QualityPoor

Wind Gusts7 mph

Humidity61%

Indoor Humidity61% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

87°
RealFeel® 91°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear
alerts

Extreme Heat Warning

12:00 PM Wednesday - 8:00 PM Saturday

Heat Index93°

WindWSW 6 mph

Air QualityPoor

Wind Gusts7 mph

Humidity60%

Indoor Humidity60% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Princeton

AccuWeather's hourly forecast for Princeton provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 100° with a RealFeel® of 110°, hazy sunshine with a 0% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

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