Princeton, NJ Hourly Weather

Mercer County7:23 AM EDT40.35°N, 74.66°WElevation 203 ft
Freeze Warning until 9:00 AM Sun

Next 48 hours

7 AM 10 AM 1 PM 4 PM 7 PM 10 PM Mon Oct 26 1 AM 4 AM 7 AM 10 AM 1 PM 4 PM 7 PM 10 PM Tue Oct 27 1 AM 4 AM 30° 40° 50° 60° 70° %
TemperatureFeels likeChance of precipitationNight
Sunday, October 2517 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
7 AM Widespread Frost 31° 31° 0% 0.00 in Calm 100% 31° 1% 0
8 AM Widespread Frost 34° 34° 0% 0.00 in Calm 100% 34° 3% 0
9 AM Sunny 43° 43° 0% 0.00 in Calm 73% 35° 2% 1
10 AM Sunny 51° 51° 0% 0.00 in Calm 61% 38° 2% 2
11 AM Sunny 57° 57° 0% 0.00 in Calm 49% 38° 2% 3
12 PM Sunny 60° 60° 0% 0.00 in Calm 44% 38° 1% 3
1 PM Sunny 63° 63° 0% 0.00 in Calm 38% 37° 1% 3
2 PM Sunny 65° 65° 0% 0.00 in Calm 35% 37° 2% 3
3 PM Sunny 66° 66° 0% 0.00 in Calm 34% 37° 1% 2
4 PM Sunny 66° 66° 0% 0.00 in SW 5 36% 38° 2% 1
5 PM Sunny 64° 64° 0% 0.00 in SW 5 40% 39° 1% 0
6 PM Clear 59° 59° 0% 0.00 in Calm 49% 40° 2% 0
7 PM Clear 53° 53° 0% 0.00 in Calm 61% 40° 3% 0
8 PM Mostly Clear 47° 47° 0% 0.00 in Calm 74% 39° 6% 0
9 PM Clear 45° 45° 0% 0.00 in Calm 79% 39° 2% 0
10 PM Clear 43° 43° 0% 0.00 in Calm 86% 39° 2% 0
11 PM Patchy Frost 42° 42° 0% 0.00 in Calm 89% 39° 3% 0
Monday, October 2624 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Patchy Frost 40° 40° 0% 0.00 in Calm 96% 39° 1% 0
1 AM Patchy Frost 39° 39° 0% 0.00 in Calm 100% 39° 0% 0
2 AM Patchy Frost 39° 39° 0% 0.00 in Calm 100% 39° 2% 0
3 AM Patchy Frost 38° 38° 0% 0.00 in Calm 100% 38° 5% 0
4 AM Patchy Frost 38° 38° 0% 0.00 in Calm 100% 38° 8% 0
5 AM Patchy Frost 37° 37° 0% 0.00 in Calm 100% 37° 15% 0
6 AM Patchy Frost 37° 37° 0% 0.00 in Calm 100% 37° 17% 0
7 AM Patchy Frost 37° 37° 0% 0.00 in Calm 100% 37° 20% 0
8 AM Patchy Frost 38° 38° 0% 0.00 in Calm 100% 38° 23% 0
9 AM Partly Sunny 46° 45° 0% 0.00 in W 5 83% 41° 52% 1
10 AM Mostly Sunny 53° 53° 0% 0.00 in W 5 66% 42° 41% 2
11 AM Sunny 58° 58° 0% 0.00 in W 5 60% 44° 8% 3
12 PM Sunny 62° 62° 0% 0.00 in W 5 52% 44° 0% 4
1 PM Sunny 65° 65° 0% 0.00 in W 5 G10 46% 44° 0% 4
2 PM Sunny 67° 67° 0% 0.00 in W 5 G10 45% 45° 2% 3
3 PM Sunny 69° 69° 0% 0.00 in W 5 G10 42% 45° 4% 2
4 PM Sunny 69° 69° 0% 0.00 in W 5 44% 46° 2% 1
5 PM Sunny 68° 68° 0% 0.00 in W 5 47% 47° 1% 0
6 PM Clear 64° 64° 0% 0.00 in W 5 54% 47° 2% 0
7 PM Clear 59° 59° 0% 0.00 in W 5 64% 47° 5% 0
8 PM Mostly Clear 55° 55° 0% 0.00 in W 5 77% 48° 8% 0
9 PM Mostly Clear 53° 53° 0% 0.00 in W 5 80% 47° 9% 0
10 PM Mostly Clear 52° 52° 0% 0.00 in Calm 83% 47° 8% 0
11 PM Mostly Clear 52° 52° 0% 0.00 in Calm 83% 47° 7% 0
Tuesday, October 2724 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Clear 51° 51° 0% 0.00 in Calm 86% 47° 6% 0
1 AM Clear 51° 51° 0% 0.00 in NW 5 86% 47° 5% 0
2 AM Clear 50° 49° 0% 0.00 in NW 5 89% 47° 5% 0
3 AM Clear 49° 48° 0% 0.00 in NW 5 89% 46° 5% 0
4 AM Mostly Clear 49° 47° 0% 0.00 in N 5 G10 89% 46° 6% 0
5 AM Mostly Clear 48° 46° 0% 0.00 in N 5 G10 89% 45° 8% 0
6 AM Sunny 47° 45° 0% 0.00 in N 5 G10 89% 44° 11% 0
7 AM Sunny 45° 43° 0% 0.00 in N 5 96% 44° 13% 0
8 AM Sunny 46° 44° 0% 0.00 in N 5 93% 44° 14% 0
9 AM Sunny 49° 47° 0% 0.00 in N 5 80% 43° 12% 1
10 AM Sunny 53° 53° 0% 0.00 in N 5 G10 69% 43° 9% 2
11 AM Sunny 57° 57° 0% 0.00 in N 5 G10 57% 42° 7% 3
12 PM Sunny 60° 60° 0% 0.00 in N 5 49% 41° 8% 4
1 PM Sunny 62° 62° 0% 0.00 in N 5 44% 40° 10% 4
2 PM Sunny 63° 63° 0% 0.00 in N 5 43% 40° 12% 3
3 PM Sunny 64° 64° 0% 0.00 in NE 5 40% 39° 12% –
4 PM Sunny 64° 64° 0% 0.00 in Calm 38% 38° 11% –
5 PM Sunny 62° 62° 0% 0.00 in Calm 41% 38° 11% –
6 PM Mostly Clear 59° 59° 0% 0.00 in Calm 45% 38° 12% –
7 PM Mostly Clear 54° 54° 0% 0.00 in Calm 52% 37° 15% –
8 PM Mostly Clear 51° 51° 0% – Calm 66% 40° 18% –
9 PM Mostly Clear 48° 48° 0% – Calm 71% 39° 18% –
10 PM Mostly Clear 46° 46° 0% – Calm 76% 39° 18% –
11 PM Mostly Clear 44° 44° 0% – Calm 79% 38° 18% –
Wednesday, October 2824 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Clear 43° 43° 0% – Calm 79% 37° 18% –
1 AM Mostly Clear 42° 42° 0% – Calm 79% 36° 18% –
2 AM Mostly Clear 42° 42° 0% – Calm 76% 35° 19% –
3 AM Mostly Clear 42° 42° 0% – Calm 73% 34° 19% –
4 AM Mostly Clear 41° 41° 0% – Calm 76% 34° 19% –
5 AM Mostly Clear 41° 41° 0% – Calm 76% 34° 19% –
6 AM Sunny 40° 40° 0% – Calm 79% 34° 19% –
7 AM Sunny 40° 38° 0% – NE 5 79% 34° 19% –
8 AM Sunny 41° 39° 0% – NE 5 79% 35° 25% –
9 AM Sunny 45° 44° 0% – NE 5 73% 37° 25% –
10 AM Sunny 50° 49° 0% – NE 5 68% 40° 25% –
11 AM Sunny 55° 55° 0% – E 5 61% 42° 25% –
12 PM Sunny 58° 58° 0% – E 5 57% 43° 25% –
1 PM Sunny 60° 60° 0% – Calm 55% 44° 25% –
2 PM Mostly Sunny 61° 61° 0% – Calm 53% 44° 41% –
3 PM Mostly Sunny 62° 62° 0% – Calm 52% 44° 41% –
4 PM Mostly Sunny 63° 63° 0% – Calm 50% 44° 41% –
5 PM Mostly Sunny 62° 62° 0% – Calm 52% 44° 41% –
6 PM Partly Cloudy 59° 59° 0% – Calm 60% 45° 41% –
7 PM Partly Cloudy 56° 56° 0% – Calm 66% 45° 41% –
8 PM Mostly Cloudy 52° 52° 0% – Calm 80% 46° 56% –
9 PM Mostly Cloudy 49° 49° 0% – Calm 89% 46° 56% –
10 PM Mostly Cloudy 47° 47° 0% – Calm 96% 46° 56% –
11 PM Mostly Cloudy 46° 46° 0% – Calm 100% 46° 56% –
Thursday, October 2924 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Cloudy 45° 45° 0% – Calm 100% 45° 56% –
1 AM Mostly Cloudy 45° 45° 0% – Calm 100% 45° 56% –
2 AM Partly Cloudy 45° 45° 0% – Calm 100% 45° 40% –
3 AM Partly Cloudy 45° 45° 0% – Calm 100% 45° 40% –
4 AM Partly Cloudy 44° 44° 0% – Calm 100% 44° 40% –
5 AM Partly Cloudy 44° 44° 0% – Calm 100% 44° 40% –
6 AM Mostly Sunny 43° 43° 0% – Calm 100% 43° 40% –
7 AM Mostly Sunny 44° 44° 0% – Calm 100% 44° 40% –
8 AM Mostly Sunny 45° 45° 0% – Calm 100% 45° 30% –
9 AM Mostly Sunny 49° 49° 0% – Calm 93% 47° 30% –
10 AM Mostly Sunny 54° 54° 0% – Calm 83% 49° 30% –
11 AM Mostly Sunny 59° 59° 0% – Calm 75% 51° 30% –
12 PM Mostly Sunny 62° 62° 0% – SW 5 70% 52° 30% –
1 PM Mostly Sunny 64° 64° 0% – SW 5 65% 52° 30% –
2 PM Sunny 66° 66° 1% – SW 5 G10 61% 52° 22% –
3 PM Sunny 68° 68° 1% – SW 5 G10 57% 52° 22% –
4 PM Sunny 69° 69° 1% – SW 5 55% 52° 22% –
5 PM Sunny 69° 69° 1% – SW 5 55% 52° 22% –
6 PM Mostly Clear 67° 67° 1% – SW 5 59% 52° 22% –
7 PM Mostly Clear 63° 63° 1% – Calm 70% 53° 22% –
8 PM Mostly Clear 59° 59° 1% – Calm 80% 53° 23% –
9 PM Mostly Clear 56° 56° 1% – Calm 90% 53° 23% –
10 PM Mostly Clear 54° 54° 1% – Calm 96% 53° 23% –
11 PM Mostly Clear 52° 52° 1% – Calm 100% 52° 23% –
Friday, October 3024 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Clear 51° 51° 1% – Calm 100% 51° 23% –
1 AM Mostly Clear 50° 50° 1% – Calm 100% 50° 23% –
2 AM Mostly Clear 50° 50° 0% – Calm 100% 50° 10% –
3 AM Mostly Clear 50° 50° 0% – Calm 100% 50° 10% –
4 AM Mostly Clear 49° 49° 0% – Calm 100% 49° 10% –
5 AM Mostly Clear 49° 49° 0% – Calm 100% 49° 10% –
6 AM Sunny 48° 48° 0% – Calm 100% 48° 10% –
7 AM Sunny 48° 48° 0% – Calm 100% 48° 10% –
8 AM Sunny 49° 49° 0% – Calm 96% 48° 12% –
9 AM Sunny 53° 53° 0% – Calm 89% 50° 12% –
10 AM Sunny 57° 57° 0% – W 5 83% 52° 12% –
11 AM Sunny 62° 62° 0% – W 5 75% 54° 12% –
12 PM Sunny 66° 66° 0% – W 5 65% 54° 12% –
1 PM Sunny 69° 69° 0% – W 5 59% 54° 12% –
2 PM Sunny 71° 71° 0% – W 5 55% 54° 18% –
3 PM Sunny 73° 73° 0% – NW 5 51% 54° 18% –
4 PM Sunny 73° 73° 0% – NW 5 51% 54° 18% –
5 PM Sunny 72° 72° 0% – NW 5 53% 54° 18% –
6 PM Mostly Clear 69° 69° 0% – NW 5 59% 54° 18% –
7 PM Mostly Clear 66° 66° 0% – Calm 65% 54° 18% –
8 PM Mostly Clear 62° 62° 0% – Calm 75% 54° 17% –
9 PM Mostly Clear 59° 59° 0% – Calm 80% 53° 17% –
10 PM Mostly Clear 57° 57° 0% – Calm 86% 53° 17% –
11 PM Mostly Clear 55° 55° 0% – Calm 90% 52° 17% –
Saturday, October 3114 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Clear 54° 54° 0% – Calm 90% 51° 17% –
1 AM Mostly Clear 53° 53° 0% – Calm 93% 51° 17% –
2 AM Mostly Clear 52° 52° 0% – Calm 93% 50° 17% –
3 AM Mostly Clear 51° 51° 0% – Calm 93% 49° 17% –
4 AM Mostly Clear 51° 51° 0% – Calm 93% 49° 17% –
5 AM Mostly Clear 50° 50° 0% – Calm 93% 48° 17% –
6 AM Sunny 49° 49° 0% – Calm 96% 48° 17% –
7 AM Sunny 48° 48° 0% – Calm 100% 48° 17% –
8 AM Mostly Sunny 49° 49° 1% – Calm 96% 48° 32% –
9 AM Mostly Sunny 52° 52° 1% – Calm 89% 49° 32% –
10 AM Mostly Sunny 57° 57° 1% – Calm 80% 51° 32% –
11 AM Mostly Sunny 61° 61° 1% – Calm 72% 52° 32% –
12 PM Mostly Sunny 64° 64° 1% – Calm 65% 52° 32% –
1 PM Mostly Sunny 66° 66° 1% – NE 5 61% 52° 32% –

National Weather Service forecast updated 14 hrs ago. Precipitation amounts are the forecast liquid equivalent for each hour.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Search index and reflects what the press published. Terms of use.