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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 · 7:56 PM

Princeton Weather & Hourly Forecast

United States · Idaho · 83857

52°F

Mostly sunny

Feels like: 50°F

💧 Humidity 68% 🌡 Pressure 30.06 inHg 💨 Wind 0 mph 👁 Visibility 23.2 mi ☁ Clouds 30% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Princeton

Today

8:00 PM

Mostly clear night

52° 💧 None 💨 0 mph H 68%30.06 inHg

11:00 PM

Clear night

45° 💧 None 💨 4 mph H 85%30.06 inHg

Tomorrow

2:00 AM

Mostly cloudy night

44° 💧 None 💨 5 mph H 86%30.00 inHg

5:00 AM

Overcast night

43° 💧 None 💨 5 mph H 85%29.97 inHg

8:00 AM

Overcast

50° 💧 None 💨 5 mph H 71%30.00 inHg

11:00 AM

Overcast

58° 💧 None 💨 3 mph H 54%29.97 inHg

2:00 PM

Overcast

61° 💧 None 💨 1 mph H 49%29.97 inHg

5:00 PM

Mostly cloudy

62° 💧 None 💨 2 mph H 45%29.94 inHg

8:00 PM

Mostly cloudy night

54° 💧 0.000 in 💨 3 mph H 68%29.97 inHg

11:00 PM

Mostly cloudy night

49° 💧 None 💨 1 mph H 84%30.00 inHg

Wednesday

2:00 AM

Mostly clear night

44° 💧 None 💨 2 mph H 92%30.03 inHg

5:00 AM

Mostly clear night

42° 💧 None 💨 1 mph H 96%30.06 inHg

8:00 AM

Sunny

49° 💧 None 💨 2 mph H 85%30.09 inHg

11:00 AM

Sunny

66° 💧 None 💨 1 mph H 44%30.09 inHg

2:00 PM

Sunny

72° 💧 None 💨 4 mph H 36%30.03 inHg

5:00 PM

Sunny

71° 💧 None 💨 7 mph H 40%30.00 inHg

Today

8:00 PM

Mostly clear night

52° 💧 None 💨 0 mph H 68%30.06 inHg

9:00 PM

Clear night

49° 💧 None 💨 2 mph H 75%30.06 inHg

10:00 PM

Mostly clear night

46° 💧 None 💨 4 mph H 83%30.06 inHg

11:00 PM

Clear night

45° 💧 None 💨 4 mph H 85%30.06 inHg

Tomorrow

12:00 AM

Mostly clear night

45° 💧 None 💨 5 mph H 86%30.03 inHg

1:00 AM

Mostly cloudy night

44° 💧 None 💨 5 mph H 87%30.03 inHg

2:00 AM

Mostly cloudy night

44° 💧 None 💨 5 mph H 86%30.00 inHg

3:00 AM

Overcast night

43° 💧 None 💨 5 mph H 85%30.00 inHg

4:00 AM

Overcast night

43° 💧 None 💨 5 mph H 85%30.00 inHg

5:00 AM

Overcast night

43° 💧 None 💨 5 mph H 85%29.97 inHg

6:00 AM

Mostly cloudy night

42° 💧 None 💨 4 mph H 86%29.97 inHg

7:00 AM

Mostly cloudy

43° 💧 None 💨 4 mph H 84%30.00 inHg

8:00 AM

Overcast

50° 💧 None 💨 5 mph H 71%30.00 inHg

9:00 AM

Overcast

55° 💧 None 💨 4 mph H 60%29.97 inHg

10:00 AM

Overcast

56° 💧 None 💨 4 mph H 57%30.00 inHg

11:00 AM

Overcast

58° 💧 None 💨 3 mph H 54%29.97 inHg

12:00 PM

Overcast

59° 💧 None 💨 2 mph H 52%29.97 inHg

1:00 PM

Overcast

60° 💧 None 💨 1 mph H 50%29.97 inHg

2:00 PM

Overcast

61° 💧 None 💨 1 mph H 49%29.97 inHg

3:00 PM

Overcast

61° 💧 None 💨 1 mph H 46%29.94 inHg

4:00 PM

Mostly cloudy

61° 💧 None 💨 1 mph H 46%29.94 inHg

5:00 PM

Mostly cloudy

62° 💧 None 💨 2 mph H 45%29.94 inHg

6:00 PM

Mostly cloudy

60° 💧 None 💨 2 mph H 54%29.94 inHg

7:00 PM

Mostly cloudy

55° 💧 None 💨 3 mph H 64%29.94 inHg

8:00 PM

Mostly cloudy night

54° 💧 None 💨 3 mph H 68%29.97 inHg

9:00 PM

Mostly cloudy night

52° 💧 0.000 in 💨 2 mph H 74%30.00 inHg

10:00 PM

Mostly cloudy night

50° 💧 None 💨 1 mph H 80%30.00 inHg

11:00 PM

Mostly cloudy night

49° 💧 None 💨 1 mph H 84%30.00 inHg

Wednesday

12:00 AM

Mostly clear night

47° 💧 None 💨 2 mph H 88%30.00 inHg

1:00 AM

Mostly clear night

46° 💧 None 💨 2 mph H 90%30.03 inHg

2:00 AM

Mostly clear night

44° 💧 None 💨 2 mph H 92%30.03 inHg

3:00 AM

Mostly clear night

43° 💧 None 💨 1 mph H 93%30.03 inHg

4:00 AM

Clear night

43° 💧 None 💨 1 mph H 95%30.03 inHg

5:00 AM

Mostly clear night

42° 💧 None 💨 1 mph H 96%30.06 inHg

6:00 AM

Clear night

41° 💧 None 💨 1 mph H 96%30.06 inHg

7:00 AM

Sunny

42° 💧 None 💨 2 mph H 97%30.09 inHg

8:00 AM

Sunny

49° 💧 None 💨 2 mph H 85%30.09 inHg

9:00 AM

Sunny

56° 💧 None 💨 2 mph H 67%30.12 inHg

10:00 AM

Sunny

62° 💧 None 💨 3 mph H 53%30.12 inHg

11:00 AM

Sunny

66° 💧 None 💨 1 mph H 44%30.09 inHg

12:00 PM

Sunny

69° 💧 None 💨 2 mph H 39%30.09 inHg

1:00 PM

Sunny

71° 💧 None 💨 3 mph H 37%30.06 inHg

2:00 PM

Sunny

72° 💧 None 💨 4 mph H 36%30.03 inHg

3:00 PM

Sunny

73° 💧 None 💨 6 mph H 37%30.03 inHg

4:00 PM

Sunny

72° 💧 None 💨 7 mph H 37%30.00 inHg

5:00 PM

Sunny

71° 💧 None 💨 7 mph H 40%30.00 inHg

6:00 PM

Sunny

67° 💧 None 💨 6 mph H 50%30.00 inHg

7:00 PM

Clear night

61° 💧 None 💨 5 mph H 62%30.00 inHg

8:00 PM

Clear night

58° 💧 None 💨 5 mph H 69%30.00 inHg

9:00 PM

Clear night

56° 💧 None 💨 4 mph H 71%30.03 inHg

10:00 PM

Clear night

55° 💧 None 💨 3 mph H 74%30.03 inHg

11:00 PM

Clear night

52° 💧 None 💨 3 mph H 78%30.00 inHg

Thursday

12:00 AM

Clear night

50° 💧 None 💨 3 mph H 83%30.00 inHg

1:00 AM

Clear night

49° 💧 None 💨 2 mph H 85%30.00 inHg

2:00 AM

Clear night

48° 💧 None 💨 2 mph H 87%30.00 inHg

3:00 AM

Clear night

47° 💧 None 💨 2 mph H 89%29.97 inHg

4:00 AM

Partly cloudy night

46° 💧 None 💨 2 mph H 91%30.00 inHg

5:00 AM

Mostly cloudy night

45° 💧 None 💨 2 mph H 91%30.00 inHg

2:00 PM

Mostly cloudy

71° 💧 None 💨 8 mph H 44%29.97 inHg

5:00 PM

Overcast

65° 💧 None 💨 6 mph H 58%29.97 inHg

8:00 PM

Overcast night

57° 💧 None 💨 3 mph H 74%30.03 inHg

11:00 PM

Light rain

54° 💧 None 💨 0 mph H 92%30.06 inHg

Friday

2:00 AM

Overcast night

52° 💧 None 💨 3 mph H 98%30.06 inHg

5:00 AM

Light rain

52° 💧 None 💨 3 mph H 99%30.09 inHg

8:00 AM

Light rain

52° 💧 None 💨 4 mph H 99%30.12 inHg

11:00 AM

Partly cloudy

58° 💧 None 💨 4 mph H 90%30.15 inHg

2:00 PM

Sunny

66° 💧 None 💨 4 mph H 54%30.09 inHg

5:00 PM

Sunny

67° 💧 None 💨 4 mph H 49%30.06 inHg

8:00 PM

Clear night

58° 💧 None 💨 1 mph H 65%30.09 inHg

11:00 PM

Clear night

52° 💧 None 💨 2 mph H 83%30.09 inHg

Saturday

2:00 AM

Clear night

50° 💧 None 💨 3 mph H 87%30.12 inHg

5:00 AM

Clear night

49° 💧 None 💨 4 mph H 86%30.12 inHg

8:00 AM

Sunny

55° 💧 None 💨 5 mph H 80%30.12 inHg

11:00 AM

Sunny

67° 💧 None 💨 6 mph H 51%30.12 inHg

2:00 PM

Sunny

72° 💧 None 💨 3 mph H 37%30.06 inHg

5:00 PM

Sunny

71° 💧 None 💨 2 mph H 38%30.03 inHg

8:00 PM

Clear night

60° 💧 None 💨 2 mph H 57%30.03 inHg

11:00 PM

Clear night

56° 💧 None 💨 2 mph H 63%30.03 inHg

Sunday

2:00 AM

Clear night

53° 💧 None 💨 3 mph H 70%30.03 inHg

5:00 AM

Clear night

49° 💧 None 💨 4 mph H 77%30.03 inHg

8:00 AM

Sunny

55° 💧 None 💨 5 mph H 72%30.06 inHg

11:00 AM

Sunny

71° 💧 None 💨 6 mph H 42%30.06 inHg

5:00 PM

Sunny

75° 💧 None 💨 6 mph H 27%30.00 inHg

11:00 PM

Clear night

78° 💧 None 💨 3 mph H 27%29.91 inHg

Monday

5:00 AM

Clear night

61° 💧 None 💨 3 mph H 42%29.88 inHg

11:00 AM

Mostly cloudy

56° 💧 None 💨 4 mph H 43%29.83 inHg

5:00 PM

Partly cloudy

76° 💧 None 💨 7 mph H 34%29.80 inHg

11:00 PM

Partly cloudy night

80° 💧 None 💨 3 mph H 29%29.65 inHg

Tuesday

5:00 AM

Moderate rain

55° 💧 None 💨 12 mph H 75%29.83 inHg

11:00 AM

Light rain

51° 💧 None 💨 7 mph H 97%29.91 inHg

5:00 PM

Mostly cloudy

52° 💧 None 💨 10 mph H 65%29.97 inHg

11:00 PM

Mostly clear night

56° 💧 None 💨 10 mph H 42%29.91 inHg

Wednesday

5:00 AM

Clear night

46° 💧 None 💨 7 mph H 68%30.03 inHg

11:00 AM

Sunny

40° 💧 None 💨 3 mph H 83%30.12 inHg

5:00 PM

Sunny

53° 💧 None 💨 7 mph H 49%30.15 inHg

11:00 PM

Overcast night

57° 💧 None 💨 4 mph H 34%30.06 inHg

Thursday

5:00 AM

Mostly clear night

46° 💧 None 💨 3 mph H 61%30.09 inHg

11:00 AM

Mostly sunny

43° 💧 None 💨 2 mph H 62%30.12 inHg

5:00 PM

Mostly sunny

60° 💧 None 💨 5 mph H 35%30.18 inHg

11:00 PM

Clear night

63° 💧 None 💨 5 mph H 22%30.12 inHg

Friday

5:00 AM

Mostly cloudy night

49° 💧 None 💨 3 mph H 39%30.15 inHg

11:00 AM

Overcast

46° 💧 None 💨 5 mph H 53%30.12 inHg

5:00 PM

Sunny

67° 💧 None 💨 7 mph H 31%30.12 inHg

11:00 PM

Clear night

71° 💧 None 💨 5 mph H 24%30.03 inHg

Saturday

5:00 AM

Clear night

54° 💧 None 💨 3 mph H 45%30.03 inHg

11:00 AM

Sunny

51° 💧 None 💨 3 mph H 50%30.00 inHg

5:00 PM

Mostly sunny

68° 💧 None 💨 8 mph H 39%30.00 inHg

11:00 PM

Partly cloudy night

70° 💧 None 💨 8 mph H 38%29.88 inHg

Sunday

5:00 AM

Clear night

58° 💧 None 💨 5 mph H 54%29.85 inHg

11:00 AM

Partly cloudy

55° 💧 None 💨 6 mph H 73%29.83 inHg

5:00 PM

Partly cloudy

64° 💧 None 💨 10 mph H 54%29.80 inHg

11:00 PM

Clear night

59° 💧 None 💨 7 mph H 77%29.74 inHg

Monday

5:00 AM

Clear night

53° 💧 None 💨 9 mph H 68%29.77 inHg

11:00 AM

Mostly sunny

46° 💧 None 💨 7 mph H 87%29.88 inHg

5:00 PM

Mostly sunny

55° 💧 None 💨 8 mph H 52%29.88 inHg

11:00 PM

Clear night

59° 💧 None 💨 5 mph H 41%29.83 inHg

Tuesday

5:00 AM

Partly cloudy night

46° 💧 None 💨 4 mph H 66%29.83 inHg

11:00 AM

Overcast

43° 💧 None 💨 4 mph H 75%29.77 inHg

In Princeton and, more broadly, across the state of Idaho: Clear skies will continue through the evening, with temperatures remaining cool, settling around 50 degrees Fahrenheit. Winds will be light from the northeast at no more than 2 mph, with gusts also up to 2 mph. No precipitation is expected overnight, so the weather will remain dry and calm. Conditions should be favorable for any outdoor activities planned in the coming hours.

15-Day Weather Outlook for Princeton

TomorrowTomorrow

Mostly sunny 62°/42° 💧 None 💨 5 mph

Wednesday, Sep 16Wed Sep 16

Mostly sunny 73°/41° 💧 None 💨 7 mph

Thursday, Sep 17Thu Sep 17

Light rain 71°/45° 💧 0.144 in 💨 8 mph

Friday, Sep 18Fri Sep 18

Light rain 67°/52° 💧 0.121 in 💨 4 mph

Saturday, Sep 19Sat Sep 19

Sunny 72°/49° 💧 None 💨 6 mph

Sunday, Sep 20Sun Sep 20

Sunny 78°/49° 💧 None 💨 6 mph

Monday, Sep 21Mon Sep 21

Mostly cloudy 80°/56° 💧 None 💨 7 mph

Tuesday, Sep 22Tue Sep 22

Moderate rain 56°/51° 💧 0.147 in 💨 12 mph

Wednesday, Sep 23Wed Sep 23

Overcast 57°/40° 💧 None 💨 7 mph

Thursday, Sep 24Thu Sep 24

Mostly sunny 63°/43° 💧 None 💨 5 mph

Friday, Sep 25Fri Sep 25

Mostly cloudy 71°/46° 💧 None 💨 7 mph

Saturday, Sep 26Sat Sep 26

Mostly sunny 70°/51° 💧 None 💨 8 mph

Sunday, Sep 27Sun Sep 27

Partly cloudy 64°/55° 💧 0.100 in 💨 10 mph

Monday, Sep 28Mon Sep 28

Mostly sunny 59°/46° 💧 None 💨 9 mph

Tuesday, Sep 29Tue Sep 29

Partly cloudy 46°/43° 💧 None 💨 4 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

Good

Nearest forecast value 8:00 PM

PM2.5 Fine particles Good 0,6µg/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 0,9µg/m³

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

O₃ Ozone Good 54,3µg/m³

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

NO₂ Nitrogen dioxide Good 3,3µg/m³

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

Air quality is favorable for outdoor activities.

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 4,9Moderate 😊Good

Tomorrow UV 4,1Moderate 🙂Fair

Wednesday UV 4,9Moderate 🙂Fair

Thursday UV 5,0Moderate 🙂Fair

Friday UV 6,0High 😐Moderate

Saturday UV 6,0High —Unavailable

Sunday UV 6,0High —Unavailable

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

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Princeton

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · PRINCETON, IDAHO

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 11:00 PM–12:00 AM.

94/100Best-hour score

BEST TIME TONIGHT 11:00 PM–12:00 AM Astronomical darkness: 8:46 PM–4:41 AM

☁ Cloud cover 9% Real hourly forecast for the best viewing hour.

☾ Moonlight 12% Waxing Crescent · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 34° high at the best hour.

✦ Estimated visible meteors 1–3/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min58%

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.

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Forecast data for Princeton were last refreshed today at 7:56 PM. The current forecast period extends through 16/09/2026 at 5:00 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.