Princeton, NJ 08542 Hourly Weather

Mercer County7:11 AM EDT40.35°N, 74.66°W

Next 48 hours

7 AM 10 AM 1 PM 4 PM 7 PM 10 PM Thu Oct 22 1 AM 4 AM 7 AM 10 AM 1 PM 4 PM 7 PM 10 PM Fri Oct 23 1 AM 4 AM 35° 40° 45° 50° 55° 60° 65° %
TemperatureFeels likeChance of precipitationNight
Wednesday, October 2117 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
7 AM Sunny 43° 37° 0% 0.00 in N 10 G22 76% 36° 8% 0
8 AM Sunny 44° 38° 0% 0.00 in N 10 G24 73% 36° 9% 0
9 AM Sunny 47° 41° 0% 0.00 in N 15 G24 68% 37° 7% 1
10 AM Sunny 51° 51° 0% 0.00 in NE 15 G26 59% 37° 12% 2
11 AM Sunny 54° 54° 0% 0.00 in N 15 G28 54% 38° 23% 3
12 PM Sunny 56° 56° 0% 0.00 in N 15 G28 51% 38° 25% 4
1 PM Sunny 59° 59° 0% 0.00 in N 15 G25 44% 37° 22% 4
2 PM Mostly Sunny 60° 60° 0% 0.00 in N 15 G24 42% 37° 28% 4
3 PM Mostly Sunny 61° 61° 0% 0.00 in N 15 G23 39% 36° 26% 2
4 PM Mostly Sunny 62° 62° 0% 0.00 in N 10 G22 38% 36° 35% 1
5 PM Mostly Sunny 61° 61° 0% 0.00 in N 10 G21 41% 37° 42% 0
6 PM Partly Cloudy 58° 58° 0% 0.00 in N 10 G20 44% 36° 48% 0
7 PM Mostly Cloudy 55° 55° 0% 0.00 in N 10 G20 49% 36° 51% 0
8 PM Mostly Cloudy 51° 51° 0% 0.00 in N 10 G20 56% 36° 54% 0
9 PM Mostly Cloudy 50° 46° 0% 0.00 in N 10 G20 61% 37° 56% 0
10 PM Mostly Cloudy 48° 44° 0% 0.00 in N 10 G20 65% 37° 60% 0
11 PM Mostly Cloudy 48° 43° 0% 0.00 in N 10 G18 68% 38° 55% 0
Thursday, October 2224 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Cloudy 47° 42° 0% 0.00 in N 10 G18 68% 37° 59% 0
1 AM Mostly Cloudy 46° 41° 0% 0.00 in N 10 G18 71% 37° 57% 0
2 AM Mostly Cloudy 46° 41° 0% 0.00 in N 10 G20 68% 36° 51% 0
3 AM Partly Cloudy 45° 40° 0% 0.00 in N 10 G18 68% 35° 42% 0
4 AM Partly Cloudy 44° 38° 0% 0.00 in N 10 G17 68% 34° 31% 0
5 AM Mostly Clear 44° 39° 0% 0.00 in N 10 G18 68% 34° 25% 0
6 AM Sunny 43° 38° 0% 0.00 in N 10 G17 70% 34° 18% 0
7 AM Sunny 42° 37° 0% 0.00 in N 10 G16 73% 34° 13% 0
8 AM Sunny 43° 38° 0% 0.00 in N 10 G17 70% 34° 16% 0
9 AM Sunny 47° 43° 0% 0.00 in N 10 G20 65% 36° 16% 1
10 AM Sunny 52° 52° 0% 0.00 in N 10 G24 54% 36° 15% 2
11 AM Sunny 56° 56° 0% 0.00 in N 15 G25 49% 37° 9% 3
12 PM Sunny 60° 60° 0% 0.00 in N 15 G26 42% 37° 7% 4
1 PM Sunny 62° 62° 0% 0.00 in N 15 G26 38% 36° 7% 4
2 PM Sunny 64° 64° 0% 0.00 in N 15 G25 35% 36° 7% 3
3 PM Sunny 65° 65° 0% 0.00 in NW 15 G24 34% 36° 7% 2
4 PM Sunny 66° 66° 0% 0.00 in NW 15 G24 34% 37° 9% 1
5 PM Sunny 66° 66° 0% 0.00 in NW 10 G23 37% 39° 7% 0
6 PM Mostly Clear 62° 62° 0% 0.00 in NW 10 G22 44% 40° 8% 0
7 PM Mostly Clear 59° 59° 0% 0.00 in NW 10 G20 51% 41° 12% 0
8 PM Mostly Clear 57° 57° 0% 0.00 in NW 10 G18 53% 40° 15% 0
9 PM Mostly Clear 53° 53° 0% 0.00 in N 10 G18 59% 39° 7% 0
10 PM Mostly Clear 51° 51° 0% 0.00 in N 10 G20 66% 40° 11% 0
11 PM Mostly Clear 51° 51° 0% 0.00 in N 10 G18 66% 40° 14% 0
Friday, October 2324 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Clear 50° 46° 0% 0.00 in N 10 G20 66% 39° 13% 0
1 AM Mostly Clear 49° 45° 0% 0.00 in N 10 G21 66% 38° 12% 0
2 AM Mostly Clear 48° 43° 0% 0.00 in N 10 G20 68% 38° 11% 0
3 AM Mostly Clear 46° 41° 0% 0.00 in N 10 G21 68% 36° 11% 0
4 AM Mostly Clear 45° 40° 0% 0.00 in N 10 G20 68% 35° 12% 0
5 AM Mostly Clear 43° 38° 0% 0.00 in N 10 G18 70% 34° 12% 0
6 AM Sunny 42° 37° 0% 0.00 in N 10 G17 70% 33° 10% 0
7 AM Sunny 41° 36° 0% 0.00 in N 5 G16 70% 32° 8% 0
8 AM Sunny 41° 36° 0% 0.00 in N 5 G14 67% 31° 6% 0
9 AM Sunny 44° 41° 0% 0.00 in N 5 G14 57% 30° 6% 1
10 AM Sunny 47° 44° 0% 0.00 in NE 5 G13 51% 30° 7% 2
11 AM Sunny 51° 51° 0% 0.00 in NE 5 G13 46% 31° 7% 3
12 PM Sunny 54° 54° 0% 0.00 in NE 5 G13 38% 29° 7% 3
1 PM Sunny 55° 55° 0% 0.00 in N 5 G12 37% 29° 7% 3
2 PM Sunny 57° 57° 0% 0.00 in N 5 33% 28° 8% 3
3 PM Sunny 58° 58° 0% 0.00 in N 5 32% 28° 9% 2
4 PM Sunny 58° 58° 0% 0.00 in N 5 32% 28° 10% 1
5 PM Sunny 57° 57° 0% 0.00 in Calm 35% 30° 10% 0
6 PM Mostly Clear 53° 53° 0% 0.00 in Calm 41% 30° 16% 0
7 PM Mostly Clear 49° 49° 0% 0.00 in Calm 50% 31° 19% 0
8 PM Mostly Clear 45° 45° 0% 0.00 in Calm 58% 31° 23% 0
9 PM Mostly Clear 43° 43° 0% 0.00 in Calm 62% 31° 22% –
10 PM Mostly Clear 42° 42° 0% 0.00 in Calm 65% 31° 21% –
11 PM Mostly Clear 41° 41° 0% 0.00 in Calm 67% 31° 18% –
Saturday, October 2424 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Clear 40° 40° 0% 0.00 in Calm 70% 31° 20% –
1 AM Mostly Clear 40° 40° 0% 0.00 in Calm 67% 30° 20% –
2 AM Mostly Clear 39° 39° 0% 0.00 in Calm 73% 31° 20% –
3 AM Mostly Clear 38° 38° 0% 0.00 in Calm 73% 30° 21% –
4 AM Mostly Clear 38° 38° 0% 0.00 in Calm 70% 29° 21% –
5 AM Mostly Clear 37° 37° 0% 0.00 in Calm 75% 30° 21% –
6 AM Sunny 36° 36° 0% 0.00 in Calm 75% 29° 21% –
7 AM Sunny 36° 36° 0% 0.00 in Calm 75% 29° 21% –
8 AM Sunny 37° 37° 0% – Calm 75% 30° 20% –
9 AM Sunny 42° 42° 0% – Calm 65% 31° 19% –
10 AM Sunny 47° 47° 0% – Calm 56% 32° 18% –
11 AM Sunny 52° 52° 0% – Calm 48% 33° 16% –
12 PM Sunny 55° 55° 0% – Calm 43% 33° 14% –
1 PM Sunny 57° 57° 0% – Calm 40% 33° 13% –
2 PM Sunny 58° 58° 0% – Calm 39% 33° 11% –
3 PM Sunny 59° 59° 0% – Calm 37% 33° 10% –
4 PM Sunny 60° 60° 0% – Calm 37% 34° 9% –
5 PM Sunny 59° 59° 0% – Calm 39% 34° 8% –
6 PM Mostly Clear 56° 56° 0% – Calm 45% 35° 10% –
7 PM Mostly Clear 52° 52° 0% – Calm 54% 36° 11% –
8 PM Mostly Clear 49° 49° 0% – Calm 66% 38° 6% –
9 PM Mostly Clear 46° 46° 0% – Calm 73% 38° 6% –
10 PM Mostly Clear 44° 44° 0% – Calm 79% 38° 6% –
11 PM Mostly Clear 42° 42° 0% – Calm 86% 38° 6% –
Sunday, October 2524 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Clear 41° 41° 0% – Calm 85% 37° 6% –
1 AM Mostly Clear 40° 40° 0% – Calm 89% 37° 6% –
2 AM Clear 40° 40° 0% – Calm 85% 36° 3% –
3 AM Clear 39° 39° 0% – Calm 85% 35° 3% –
4 AM Clear 39° 39° 0% – Calm 85% 35° 3% –
5 AM Clear 38° 38° 0% – Calm 89% 35° 3% –
6 AM Sunny 37° 37° 0% – Calm 92% 35° 3% –
7 AM Sunny 36° 36° 0% – Calm 96% 35° 3% –
8 AM Sunny 37° 37° 0% – Calm 96% 36° 2% –
9 AM Sunny 42° 42° 0% – Calm 86% 38° 2% –
10 AM Sunny 49° 49° 0% – Calm 71% 40° 2% –
11 AM Sunny 55° 55° 0% – Calm 59% 41° 2% –
12 PM Sunny 58° 58° 0% – Calm 53% 41° 2% –
1 PM Sunny 61° 61° 0% – Calm 46% 40° 2% –
2 PM Sunny 62° 62° 0% – Calm 44% 40° 3% –
3 PM Sunny 64° 64° 0% – Calm 41% 40° 3% –
4 PM Sunny 65° 65° 0% – Calm 41% 41° 3% –
5 PM Sunny 64° 64° 0% – Calm 45% 42° 3% –
6 PM Clear 61° 61° 0% – Calm 51% 43° 3% –
7 PM Clear 57° 57° 0% – Calm 62% 44° 3% –
8 PM Mostly Clear 53° 53° 0% – Calm 71% 44° 10% –
9 PM Mostly Clear 50° 50° 0% – Calm 80% 44° 10% –
10 PM Mostly Clear 48° 48° 0% – Calm 86% 44° 10% –
11 PM Mostly Clear 46° 46° 0% – Calm 89% 43° 10% –
Monday, October 2624 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Clear 45° 45° 0% – Calm 89% 42° 10% –
1 AM Mostly Clear 44° 44° 0% – Calm 93% 42° 10% –
2 AM Mostly Clear 44° 44° 0% – Calm 89% 41° 9% –
3 AM Mostly Clear 43° 43° 0% – Calm 93% 41° 9% –
4 AM Mostly Clear 43° 43° 0% – Calm 93% 41° 9% –
5 AM Mostly Clear 42° 42° 0% – Calm 96% 41° 9% –
6 AM Sunny 41° 41° 0% – Calm 100% 41° 9% –
7 AM Sunny 41° 41° 0% – Calm 100% 41° 9% –
8 AM Sunny 42° 42° 0% – Calm 96% 41° 12% –
9 AM Sunny 46° 46° 0% – Calm 86% 42° 12% –
10 AM Sunny 51° 51° 0% – Calm 77% 44° 12% –
11 AM Sunny 56° 56° 0% – Calm 66% 45° 12% –
12 PM Sunny 60° 60° 0% – Calm 60% 46° 12% –
1 PM Sunny 64° 64° 0% – W 5 52% 46° 12% –
2 PM Sunny 66° 66° 0% – W 5 48% 46° 13% –
3 PM Sunny 67° 67° 0% – W 5 47% 46° 13% –
4 PM Sunny 67° 67° 0% – Calm 47% 46° 13% –
5 PM Sunny 66° 66° 0% – Calm 48% 46° 13% –
6 PM Mostly Clear 64° 64° 0% – Calm 54% 47° 13% –
7 PM Mostly Clear 60° 60° 0% – Calm 62% 47° 13% –
8 PM Mostly Clear 57° 57° 0% – Calm 72% 48° 21% –
9 PM Mostly Clear 55° 55° 0% – Calm 77% 48° 21% –
10 PM Mostly Clear 53° 53° 0% – Calm 83% 48° 21% –
11 PM Mostly Clear 51° 51° 0% – Calm 86% 47° 21% –
Tuesday, October 2718 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Clear 50° 50° 0% – Calm 86% 46° 21% –
1 AM Mostly Clear 49° 49° 0% – Calm 86% 45° 21% –
2 AM Mostly Clear 49° 49° 0% – Calm 83% 44° 25% –
3 AM Mostly Clear 48° 48° 0% – Calm 83% 43° 25% –
4 AM Mostly Clear 48° 48° 0% – Calm 83% 43° 25% –
5 AM Mostly Clear 47° 47° 0% – Calm 86% 43° 25% –
6 AM Sunny 46° 46° 0% – Calm 89% 43° 25% –
7 AM Sunny 46° 45° 0% – NW 5 89% 43° 25% –
8 AM Mostly Sunny 47° 46° 0% – NW 5 86% 43° 30% –
9 AM Mostly Sunny 50° 49° 0% – NW 5 80% 44° 30% –
10 AM Mostly Sunny 54° 54° 0% – NW 5 71% 45° 30% –
11 AM Mostly Sunny 57° 57° 0% – NW 5 G10 67% 46° 30% –
12 PM Mostly Sunny 59° 59° 0% – NW 5 G10 62% 46° 30% –
1 PM Mostly Sunny 61° 61° 0% – NW 5 G10 58% 46° 30% –
2 PM Mostly Sunny 62° 62° 1% – NW 5 G10 56% 46° 35% –
3 PM Mostly Sunny 63° 63° 1% – NW 5 52% 45° 35% –
4 PM Mostly Sunny 64° 64° 1% – NW 5 50% 45° 35% –
5 PM Mostly Sunny 63° 63° 1% – NW 5 50% 44° 35% –

National Weather Service forecast updated 3 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.