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Current weather in Princeton is few clouds.

Where can I find the hourly weather forecast for Princeton?

This page shows hourly weather forecast for Princeton, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for Princeton updated regularly?

Weather data for Princeton is updated regularly with the latest available observations and forecasts.

Now · 6:15 PM

Princeton Weather & Hourly Forecast

United States · Kentucky · 42445

89°F

Mostly sunny

Feels like: 88°F

💧 Humidity 46% 🌡 Pressure 29.88 inHg 💨 Wind 10 mph 👁 Visibility 24.3 mi ☁ Clouds 29% ☀️ UV index 0.5 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Princeton

Today

7:00 PM

Mostly cloudy

86° 💧 None 💨 8 mph H 50%29.88 inHg

10:00 PM

Clear night

81° 💧 None 💨 11 mph H 53%29.97 inHg

Tomorrow

1:00 AM

Clear night

76° 💧 None 💨 9 mph H 54%29.97 inHg

4:00 AM

Clear night

71° 💧 None 💨 8 mph H 58%30.00 inHg

7:00 AM

Mostly cloudy

68° 💧 None 💨 8 mph H 67%30.06 inHg

10:00 AM

Partly cloudy

78° 💧 None 💨 9 mph H 51%30.06 inHg

1:00 PM

Sunny

87° 💧 None 💨 8 mph H 33%30.03 inHg

4:00 PM

Sunny

89° 💧 None 💨 8 mph H 29%30.00 inHg

7:00 PM

Sunny

83° 💧 None 💨 6 mph H 37%30.00 inHg

10:00 PM

Clear night

77° 💧 None 💨 7 mph H 46%30.03 inHg

Tuesday

1:00 AM

Clear night

73° 💧 None 💨 5 mph H 53%30.06 inHg

4:00 AM

Clear night

73° 💧 None 💨 7 mph H 58%30.06 inHg

7:00 AM

Sunny

73° 💧 None 💨 7 mph H 82%30.12 inHg

10:00 AM

Sunny

84° 💧 None 💨 8 mph H 60%30.12 inHg

1:00 PM

Mostly sunny

93° 💧 None 💨 5 mph H 40%30.09 inHg

4:00 PM

Mostly sunny

95° 💧 None 💨 5 mph H 34%30.03 inHg

Today

7:00 PM

Mostly cloudy

86° 💧 None 💨 8 mph H 50%29.88 inHg

8:00 PM

Partly cloudy night

83° 💧 None 💨 6 mph H 56%29.91 inHg

9:00 PM

Clear night

82° 💧 None 💨 8 mph H 57%29.94 inHg

10:00 PM

Clear night

81° 💧 None 💨 11 mph H 53%29.97 inHg

11:00 PM

Mostly clear night

80° 💧 None 💨 12 mph H 53%29.97 inHg

Tomorrow

12:00 AM

Clear night

78° 💧 None 💨 10 mph H 53%29.97 inHg

1:00 AM

Clear night

76° 💧 None 💨 9 mph H 54%29.97 inHg

2:00 AM

Clear night

75° 💧 None 💨 9 mph H 54%29.97 inHg

3:00 AM

Mostly clear night

73° 💧 None 💨 8 mph H 55%29.97 inHg

4:00 AM

Clear night

71° 💧 None 💨 8 mph H 58%30.00 inHg

5:00 AM

Mostly clear night

70° 💧 None 💨 8 mph H 61%30.00 inHg

6:00 AM

Partly cloudy night

69° 💧 None 💨 8 mph H 65%30.03 inHg

7:00 AM

Mostly cloudy

68° 💧 None 💨 8 mph H 67%30.06 inHg

8:00 AM

Mostly cloudy

71° 💧 None 💨 9 mph H 63%30.06 inHg

9:00 AM

Mostly cloudy

75° 💧 None 💨 9 mph H 57%30.06 inHg

10:00 AM

Partly cloudy

78° 💧 None 💨 9 mph H 51%30.06 inHg

11:00 AM

Mostly sunny

82° 💧 None 💨 9 mph H 45%30.06 inHg

12:00 PM

Sunny

85° 💧 None 💨 9 mph H 38%30.03 inHg

1:00 PM

Sunny

87° 💧 None 💨 8 mph H 33%30.03 inHg

2:00 PM

Sunny

88° 💧 None 💨 7 mph H 30%30.00 inHg

3:00 PM

Sunny

89° 💧 None 💨 8 mph H 29%30.00 inHg

4:00 PM

Sunny

89° 💧 None 💨 8 mph H 29%30.00 inHg

5:00 PM

Sunny

88° 💧 None 💨 9 mph H 30%30.00 inHg

6:00 PM

Sunny

86° 💧 None 💨 9 mph H 31%30.00 inHg

7:00 PM

Sunny

83° 💧 None 💨 6 mph H 37%30.00 inHg

8:00 PM

Clear night

79° 💧 None 💨 6 mph H 46%30.00 inHg

9:00 PM

Clear night

78° 💧 None 💨 7 mph H 49%30.03 inHg

10:00 PM

Clear night

77° 💧 None 💨 7 mph H 46%30.03 inHg

11:00 PM

Clear night

75° 💧 None 💨 6 mph H 47%30.06 inHg

Tuesday

12:00 AM

Clear night

73° 💧 None 💨 5 mph H 51%30.06 inHg

1:00 AM

Clear night

73° 💧 None 💨 5 mph H 53%30.06 inHg

2:00 AM

Clear night

72° 💧 None 💨 4 mph H 54%30.06 inHg

3:00 AM

Clear night

73° 💧 None 💨 6 mph H 54%30.03 inHg

4:00 AM

Clear night

73° 💧 None 💨 7 mph H 58%30.06 inHg

5:00 AM

Clear night

73° 💧 None 💨 7 mph H 69%30.06 inHg

6:00 AM

Mostly clear night

72° 💧 None 💨 6 mph H 78%30.09 inHg

7:00 AM

Sunny

73° 💧 None 💨 7 mph H 82%30.12 inHg

8:00 AM

Sunny

77° 💧 None 💨 8 mph H 75%30.12 inHg

9:00 AM

Sunny

80° 💧 None 💨 9 mph H 67%30.12 inHg

10:00 AM

Sunny

84° 💧 None 💨 8 mph H 60%30.12 inHg

11:00 AM

Sunny

88° 💧 None 💨 7 mph H 54%30.12 inHg

12:00 PM

Mostly sunny

91° 💧 None 💨 6 mph H 45%30.12 inHg

1:00 PM

Mostly sunny

93° 💧 None 💨 5 mph H 40%30.09 inHg

2:00 PM

Mostly sunny

94° 💧 None 💨 6 mph H 36%30.06 inHg

3:00 PM

Mostly sunny

94° 💧 None 💨 5 mph H 35%30.06 inHg

4:00 PM

Mostly sunny

95° 💧 None 💨 5 mph H 34%30.03 inHg

5:00 PM

Mostly sunny

94° 💧 None 💨 4 mph H 34%30.03 inHg

6:00 PM

Mostly sunny

93° 💧 None 💨 3 mph H 34%30.03 inHg

7:00 PM

Mostly cloudy

89° 💧 None 💨 4 mph H 40%30.03 inHg

8:00 PM

Overcast night

86° 💧 None 💨 6 mph H 50%30.06 inHg

9:00 PM

Mostly cloudy night

85° 💧 None 💨 7 mph H 54%30.09 inHg

10:00 PM

Overcast night

83° 💧 None 💨 7 mph H 57%30.09 inHg

11:00 PM

Mostly cloudy night

83° 💧 None 💨 8 mph H 58%30.09 inHg

Wednesday

12:00 AM

Mostly cloudy night

82° 💧 None 💨 9 mph H 60%30.09 inHg

1:00 AM

Overcast night

82° 💧 None 💨 9 mph H 61%30.09 inHg

2:00 AM

Mostly cloudy night

81° 💧 None 💨 9 mph H 63%30.09 inHg

3:00 AM

Overcast night

80° 💧 None 💨 9 mph H 65%30.09 inHg

4:00 AM

Mostly cloudy night

79° 💧 None 💨 10 mph H 67%30.09 inHg

5:00 AM

Mostly cloudy night

79° 💧 None 💨 9 mph H 68%30.12 inHg

6:00 AM

Mostly cloudy night

78° 💧 None 💨 9 mph H 70%30.12 inHg

7:00 AM

Partly cloudy

78° 💧 None 💨 9 mph H 71%30.15 inHg

10:00 AM

Sunny

85° 💧 None 💨 11 mph H 62%30.12 inHg

1:00 PM

Mostly sunny

91° 💧 None 💨 9 mph H 47%30.09 inHg

4:00 PM

Sunny

92° 💧 None 💨 7 mph H 45%30.00 inHg

7:00 PM

Sunny

87° 💧 None 💨 3 mph H 60%29.97 inHg

10:00 PM

Clear night

82° 💧 None 💨 3 mph H 71%30.00 inHg

Thursday

1:00 AM

Clear night

80° 💧 None 💨 8 mph H 73%29.97 inHg

4:00 AM

Clear night

79° 💧 None 💨 8 mph H 72%29.94 inHg

7:00 AM

Mostly sunny

79° 💧 None 💨 9 mph H 75%29.97 inHg

10:00 AM

Mostly cloudy

86° 💧 None 💨 9 mph H 59%29.94 inHg

1:00 PM

Mostly cloudy

91° 💧 None 💨 8 mph H 45%29.91 inHg

4:00 PM

Overcast

86° 💧 None 💨 11 mph H 59%29.85 inHg

7:00 PM

Overcast

81° 💧 None 💨 6 mph H 70%29.88 inHg

10:00 PM

Partly cloudy night

72° 💧 None 💨 4 mph H 99%29.91 inHg

Friday

1:00 AM

Overcast night

74° 💧 None 💨 3 mph H 97%29.91 inHg

4:00 AM

Overcast night

71° 💧 None 💨 5 mph H 98%29.91 inHg

7:00 AM

Mostly cloudy

70° 💧 None 💨 6 mph H 97%29.94 inHg

10:00 AM

Overcast

78° 💧 None 💨 6 mph H 70%29.94 inHg

1:00 PM

Mostly cloudy

87° 💧 None 💨 3 mph H 48%29.88 inHg

4:00 PM

Mostly sunny

90° 💧 None 💨 1 mph H 40%29.83 inHg

7:00 PM

Partly cloudy

83° 💧 None 💨 1 mph H 58%29.83 inHg

10:00 PM

Clear night

78° 💧 None 💨 6 mph H 82%29.85 inHg

Saturday

1:00 AM

Clear night

75° 💧 None 💨 3 mph H 92%29.85 inHg

4:00 AM

Clear night

74° 💧 None 💨 4 mph H 97%29.88 inHg

7:00 AM

Mostly sunny

74° 💧 None 💨 5 mph H 98%29.91 inHg

1:00 PM

Sunny

88° 💧 None 💨 5 mph H 54%29.91 inHg

7:00 PM

Mostly sunny

84° 💧 None 💨 2 mph H 60%29.91 inHg

Sunday

1:00 AM

Clear night

78° 💧 None 💨 2 mph H 79%29.97 inHg

7:00 AM

Sunny

76° 💧 None 💨 3 mph H 89%30.03 inHg

1:00 PM

Mostly sunny

93° 💧 None 💨 2 mph H 44%30.03 inHg

7:00 PM

Sunny

86° 💧 None 💨 4 mph H 57%29.97 inHg

Monday

1:00 AM

Clear night

81° 💧 None 💨 7 mph H 66%30.03 inHg

7:00 AM

Sunny

78° 💧 None 💨 5 mph H 79%30.06 inHg

1:00 PM

Mostly sunny

95° 💧 None 💨 3 mph H 39%30.03 inHg

7:00 PM

Mostly sunny

88° 💧 None 💨 3 mph H 48%29.94 inHg

Tuesday

1:00 AM

Clear night

81° 💧 None 💨 8 mph H 61%30.00 inHg

7:00 AM

Sunny

78° 💧 None 💨 6 mph H 76%30.06 inHg

1:00 PM

Sunny

95° 💧 None 💨 6 mph H 42%30.06 inHg

7:00 PM

Sunny

87° 💧 None 💨 1 mph H 59%30.03 inHg

Wednesday

1:00 AM

Mostly clear night

80° 💧 None 💨 2 mph H 74%30.12 inHg

7:00 AM

Sunny

77° 💧 None 💨 5 mph H 83%30.18 inHg

1:00 PM

Mostly sunny

95° 💧 None 💨 4 mph H 43%30.18 inHg

7:00 PM

Mostly clear night

86° 💧 None 💨 2 mph H 65%30.18 inHg

Thursday

1:00 AM

Partly cloudy night

80° 💧 None 💨 7 mph H 56%30.21 inHg

7:00 AM

Sunny

76° 💧 None 💨 6 mph H 66%30.21 inHg

1:00 PM

Sunny

92° 💧 None 💨 8 mph H 42%30.18 inHg

7:00 PM

Mostly clear night

85° 💧 None 💨 8 mph H 36%30.12 inHg

Friday

1:00 AM

Clear night

75° 💧 None 💨 8 mph H 45%30.15 inHg

7:00 AM

Sunny

68° 💧 None 💨 9 mph H 71%30.15 inHg

1:00 PM

Sunny

81° 💧 None 💨 12 mph H 41%30.15 inHg

7:00 PM

Clear night

77° 💧 None 💨 11 mph H 43%30.09 inHg

Saturday

1:00 AM

Clear night

66° 💧 None 💨 14 mph H 56%30.18 inHg

7:00 AM

Sunny

58° 💧 None 💨 12 mph H 60%30.24 inHg

1:00 PM

Sunny

68° 💧 None 💨 12 mph H 34%30.24 inHg

7:00 PM

Clear night

66° 💧 None 💨 10 mph H 35%30.18 inHg

Sunday

1:00 AM

Clear night

59° 💧 None 💨 10 mph H 48%30.21 inHg

7:00 AM

Sunny

54° 💧 None 💨 8 mph H 56%30.27 inHg

1:00 PM

Sunny

68° 💧 None 💨 9 mph H 31%30.21 inHg

7:00 PM

Clear night

66° 💧 None 💨 5 mph H 35%30.18 inHg

Monday

1:00 AM

Clear night

58° 💧 None 💨 6 mph H 49%30.18 inHg

7:00 AM

Sunny

55° 💧 None 💨 4 mph H 63%30.24 inHg

In Princeton and, more broadly, across the state of Kentucky: The evening will feature a mix of sun and clouds, with temperatures ranging from 81 to 87 degrees Fahrenheit. Expect the weather to remain dry through the night, with no precipitation anticipated. Winds will be moderate, coming from the northeast at around 12 mph, with gusts reaching up to 28 mph. The warm conditions will persist into the early hours, so it will stay comfortably hot as you settle in for the night. Be mindful of the gusty winds, especially if you're outdoors or near loose objects. Overall, tonight should be clear and dry, with temperatures remaining warm and breezy.

15-Day Weather Outlook for Princeton

TomorrowTomorrow

Mostly cloudy 89°/68° 💧 None 💨 12 mph

Tuesday, Sep 8Tue Sep 8

Mostly sunny 95°/72° 💧 None 💨 9 mph

Wednesday, Sep 9Wed Sep 9

Mostly sunny 92°/78° 💧 0.010 in 💨 11 mph

Thursday, Sep 10Thu Sep 10

Mostly cloudy 91°/79° 💧 0.032 in 💨 11 mph

Friday, Sep 11Fri Sep 11

Partly cloudy 90°/70° 💧 0.125 in 💨 6 mph

Saturday, Sep 12Sat Sep 12

Mostly sunny 88°/74° 💧 0.007 in 💨 6 mph

Sunday, Sep 13Sun Sep 13

Mostly sunny 93°/76° 💧 0.003 in 💨 3 mph

Monday, Sep 14Mon Sep 14

Mostly sunny 95°/78° 💧 0.007 in 💨 7 mph

Tuesday, Sep 15Tue Sep 15

Mostly sunny 95°/78° 💧 0.002 in 💨 8 mph

Wednesday, Sep 16Wed Sep 16

Mostly sunny 95°/77° 💧 0.008 in 💨 5 mph

Thursday, Sep 17Thu Sep 17

Mostly sunny 92°/76° 💧 0.041 in 💨 8 mph

Friday, Sep 18Fri Sep 18

Mostly sunny 85°/68° 💧 None 💨 12 mph

Saturday, Sep 19Sat Sep 19

Sunny 77°/58° 💧 None 💨 14 mph

Sunday, Sep 20Sun Sep 20

Sunny 68°/54° 💧 None 💨 10 mph

Monday, Sep 21Mon Sep 21

Sunny 66°/55° 💧 0.001 in 💨 6 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Princeton

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Princeton

Hourly forecast · Updated every 2 hours

Moderate

Nearest forecast value 7:00 PM

PM2.5 Fine particles Good 9,8µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 10,3µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Moderate 101,8µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 1,4µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Sensitive people should reduce strenuous and prolonged outdoor exertion.

UV & HEALTH

UV, Sun & Health Outlook in Princeton

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 8,3Very high 😐Moderate

Tomorrow UV 8,2Very high 😐Moderate

Tuesday UV 8,1Very high 🙂Fair

Wednesday UV 8,2Very high 🙂Fair

Thursday UV 2,6Low 🙂Fair

Friday UV 8,0Very high —Unavailable

Saturday UV 8,0Very high —Unavailable

Hourly UV index today

7:00 PMUV 0,0

Today's weather health advice Open today's recommendations.

Very high UV risk

Use SPF 50+ sunscreen, a hat and sunglasses. Seek shade and limit exposure around midday.

Caution for sensitive people

People with respiratory or cardiovascular conditions should reduce prolonged outdoor exertion.

Stay hydrated

Drink water regularly, especially during physical activity or prolonged sun exposure.

Best in the morning or late in the day

For walking, running or cycling, prefer the early morning or late afternoon.

WIND OUTLOOK

Hourly Wind Forecast for Princeton

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · PRINCETON, KENTUCKY

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 2:00 AM–3:00 AM.

99/100Best-hour score

BEST TIME TONIGHT 2:00 AM–3:00 AM Astronomical darkness: 8:42 PM–4:58 AM

☁ Cloud cover 2% Real hourly forecast for the best viewing hour.

☾ Moonlight 22% Waning Crescent · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 55° high at the best hour.

✦ Estimated visible meteors 1–4/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min75%

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

ACTIVE NOW

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

UPCOMING

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

DISCOVER WEATHER NEARBY Weather in other cities

Explore current conditions and forecasts for other locations.

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Forecast data for Princeton were last refreshed today at 6:15 PM. The current forecast period extends through 08/09/2026 at 4:00 PM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.