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Current weather in St. Johns is overcast clouds.

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

Now · 12:29 AM

St. Johns Weather & Hourly Forecast

United States · Arizona · 85936

59°F

Overcast night

Feels like: 53°F

💧 Humidity 69% 🌡 Pressure 30.00 inHg 💨 Wind 9 mph 👁 Visibility 32.0 mi ☁ Clouds 99% ☀️ UV index 0.0 · Low 🌅 Sunrise 6:05 AM 🌇 Sunset 6:14 PM

Hourly Forecast for St. Johns

Today

1:00 AM

Overcast night

59° 💧 None 💨 8 mph H 70%30.03 inHg

4:00 AM

Overcast night

57° 💧 None 💨 4 mph H 81%30.00 inHg

7:00 AM

Overcast

57° 💧 None 💨 4 mph H 82%30.06 inHg

10:00 AM

Overcast

66° 💧 0.001 in 💨 2 mph H 62%30.06 inHg

1:00 PM

Overcast

69° 💧 0.011 in 💨 5 mph H 55%30.00 inHg

4:00 PM

Overcast

68° 💧 0.001 in 💨 10 mph H 52%29.97 inHg

7:00 PM

Overcast night

61° 💧 None 💨 7 mph H 69%30.03 inHg

10:00 PM

Overcast night

59° 💧 None 💨 4 mph H 77%30.09 inHg

Tomorrow

1:00 AM

Mostly cloudy night

57° 💧 None 💨 3 mph H 86%30.06 inHg

4:00 AM

Partly cloudy night

55° 💧 None 💨 3 mph H 92%30.09 inHg

7:00 AM

Mostly cloudy

54° 💧 None 💨 3 mph H 92%30.12 inHg

10:00 AM

Sunny

65° 💧 0.006 in 💨 3 mph H 62%30.09 inHg

1:00 PM

Mostly cloudy

71° 💧 0.020 in 💨 3 mph H 51%30.00 inHg

4:00 PM

Light rain

70° 💧 0.014 in 💨 6 mph H 50%29.94 inHg

7:00 PM

Mostly clear night

63° 💧 0.001 in 💨 3 mph H 72%30.00 inHg

10:00 PM

Mostly clear night

58° 💧 None 💨 10 mph H 79%30.09 inHg

Today

1:00 AM

Overcast night

59° 💧 None 💨 8 mph H 70%30.03 inHg

2:00 AM

Overcast night

58° 💧 None 💨 5 mph H 75%30.03 inHg

3:00 AM

Overcast night

57° 💧 None 💨 5 mph H 79%30.00 inHg

4:00 AM

Overcast night

57° 💧 None 💨 4 mph H 81%30.00 inHg

5:00 AM

Overcast night

56° 💧 None 💨 2 mph H 83%30.03 inHg

6:00 AM

Overcast night

56° 💧 None 💨 2 mph H 84%30.03 inHg

7:00 AM

Overcast

57° 💧 None 💨 4 mph H 82%30.06 inHg

8:00 AM

Overcast

60° 💧 None 💨 5 mph H 76%30.06 inHg

9:00 AM

Overcast

63° 💧 None 💨 2 mph H 68%30.06 inHg

10:00 AM

Overcast

66° 💧 None 💨 2 mph H 62%30.06 inHg

11:00 AM

Overcast

68° 💧 None 💨 3 mph H 57%30.06 inHg

12:00 PM

Overcast

69° 💧 0.001 in 💨 5 mph H 55%30.03 inHg

1:00 PM

Overcast

69° 💧 0.004 in 💨 5 mph H 55%30.00 inHg

2:00 PM

Overcast

69° 💧 0.004 in 💨 7 mph H 55%30.00 inHg

3:00 PM

Overcast

69° 💧 0.003 in 💨 9 mph H 53%29.97 inHg

4:00 PM

Overcast

68° 💧 0.001 in 💨 10 mph H 52%29.97 inHg

5:00 PM

Overcast

66° 💧 None 💨 10 mph H 56%30.00 inHg

6:00 PM

Overcast

64° 💧 None 💨 7 mph H 64%30.00 inHg

7:00 PM

Overcast night

61° 💧 None 💨 7 mph H 69%30.03 inHg

8:00 PM

Mostly cloudy night

60° 💧 None 💨 7 mph H 73%30.06 inHg

9:00 PM

Overcast night

59° 💧 None 💨 6 mph H 76%30.09 inHg

10:00 PM

Overcast night

59° 💧 None 💨 4 mph H 77%30.09 inHg

11:00 PM

Overcast night

59° 💧 None 💨 3 mph H 81%30.06 inHg

Tomorrow

12:00 AM

Overcast night

58° 💧 None 💨 3 mph H 85%30.06 inHg

1:00 AM

Mostly cloudy night

57° 💧 None 💨 3 mph H 86%30.06 inHg

2:00 AM

Overcast night

56° 💧 None 💨 4 mph H 89%30.06 inHg

3:00 AM

Mostly cloudy night

56° 💧 None 💨 3 mph H 89%30.06 inHg

4:00 AM

Partly cloudy night

55° 💧 None 💨 3 mph H 92%30.09 inHg

5:00 AM

Mostly clear night

54° 💧 None 💨 2 mph H 93%30.09 inHg

6:00 AM

Partly cloudy night

53° 💧 None 💨 2 mph H 95%30.09 inHg

7:00 AM

Mostly cloudy

54° 💧 None 💨 3 mph H 92%30.12 inHg

8:00 AM

Partly cloudy

57° 💧 None 💨 3 mph H 83%30.12 inHg

9:00 AM

Mostly sunny

62° 💧 None 💨 4 mph H 72%30.12 inHg

10:00 AM

Sunny

65° 💧 0.001 in 💨 3 mph H 62%30.09 inHg

11:00 AM

Mostly sunny

67° 💧 0.002 in 💨 3 mph H 56%30.06 inHg

12:00 PM

Partly cloudy

69° 💧 0.003 in 💨 3 mph H 53%30.03 inHg

1:00 PM

Mostly cloudy

71° 💧 0.002 in 💨 3 mph H 51%30.00 inHg

2:00 PM

Light thunderstorms

70° 💧 0.005 in 💨 4 mph H 51%29.97 inHg

3:00 PM

Light thunderstorms

70° 💧 0.013 in 💨 5 mph H 50%29.94 inHg

4:00 PM

Light rain

70° 💧 0.007 in 💨 6 mph H 50%29.94 inHg

5:00 PM

Light rain

68° 💧 0.005 in 💨 8 mph H 55%29.97 inHg

6:00 PM

Partly cloudy

65° 💧 0.002 in 💨 4 mph H 65%30.00 inHg

7:00 PM

Mostly clear night

63° 💧 0.001 in 💨 3 mph H 72%30.00 inHg

8:00 PM

Mostly clear night

60° 💧 None 💨 6 mph H 80%30.03 inHg

9:00 PM

Partly cloudy night

59° 💧 None 💨 8 mph H 83%30.06 inHg

10:00 PM

Mostly clear night

58° 💧 None 💨 10 mph H 79%30.09 inHg

11:00 PM

Partly cloudy night

57° 💧 None 💨 6 mph H 81%30.03 inHg

Friday

12:00 AM

Clear night

55° 💧 None 💨 6 mph H 86%30.03 inHg

1:00 AM

Clear night

54° 💧 None 💨 4 mph H 90%30.06 inHg

2:00 AM

Clear night

53° 💧 None 💨 4 mph H 91%30.06 inHg

3:00 AM

Clear night

52° 💧 None 💨 2 mph H 91%30.06 inHg

4:00 AM

Clear night

52° 💧 None 💨 1 mph H 90%30.06 inHg

5:00 AM

Clear night

51° 💧 None 💨 2 mph H 90%30.09 inHg

6:00 AM

Clear night

50° 💧 None 💨 4 mph H 91%30.09 inHg

7:00 AM

Sunny

53° 💧 None 💨 5 mph H 85%30.09 inHg

8:00 AM

Sunny

60° 💧 None 💨 3 mph H 71%30.12 inHg

9:00 AM

Sunny

64° 💧 None 💨 2 mph H 62%30.09 inHg

10:00 AM

Sunny

67° 💧 None 💨 2 mph H 57%30.09 inHg

11:00 AM

Mostly sunny

69° 💧 None 💨 4 mph H 52%30.06 inHg

12:00 PM

Mostly sunny

71° 💧 0.001 in 💨 4 mph H 48%30.03 inHg

1:00 PM

Mostly sunny

72° 💧 0.002 in 💨 3 mph H 44%30.00 inHg

2:00 PM

Light thunderstorms

72° 💧 0.002 in 💨 3 mph H 42%29.97 inHg

3:00 PM

Light rain

73° 💧 0.005 in 💨 5 mph H 43%29.94 inHg

4:00 PM

Mostly sunny

72° 💧 0.001 in 💨 6 mph H 43%29.94 inHg

5:00 PM

Sunny

71° 💧 0.001 in 💨 6 mph H 44%29.94 inHg

8:00 PM

Mostly clear night

66° 💧 None 💨 6 mph H 57%29.97 inHg

11:00 PM

Mostly clear night

61° 💧 None 💨 8 mph H 65%30.00 inHg

Saturday

2:00 AM

Clear night

57° 💧 None 💨 5 mph H 70%30.00 inHg

5:00 AM

Clear night

54° 💧 None 💨 4 mph H 75%30.03 inHg

8:00 AM

Sunny

62° 💧 None 💨 2 mph H 62%30.09 inHg

11:00 AM

Sunny

75° 💧 None 💨 2 mph H 34%30.06 inHg

2:00 PM

Mostly sunny

80° 💧 None 💨 2 mph H 26%29.94 inHg

5:00 PM

Partly cloudy

80° 💧 None 💨 3 mph H 20%29.88 inHg

8:00 PM

Clear night

68° 💧 None 💨 7 mph H 45%29.97 inHg

11:00 PM

Clear night

61° 💧 None 💨 6 mph H 46%30.00 inHg

Sunday

2:00 AM

Clear night

56° 💧 None 💨 5 mph H 51%30.00 inHg

5:00 AM

Mostly cloudy night

53° 💧 None 💨 4 mph H 61%30.00 inHg

8:00 AM

Partly cloudy

60° 💧 None 💨 6 mph H 49%30.03 inHg

11:00 AM

Overcast

77° 💧 None 💨 5 mph H 23%30.00 inHg

2:00 PM

Overcast

72° 💧 None 💨 13 mph H 33%29.97 inHg

5:00 PM

Light rain

67° 💧 None 💨 2 mph H 52%29.97 inHg

8:00 PM

Mostly clear night

60° 💧 None 💨 3 mph H 71%30.00 inHg

11:00 PM

Clear night

55° 💧 None 💨 4 mph H 85%30.00 inHg

Monday

2:00 AM

Clear night

52° 💧 None 💨 5 mph H 80%29.97 inHg

5:00 AM

Clear night

50° 💧 None 💨 4 mph H 80%29.97 inHg

8:00 AM

Sunny

61° 💧 None 💨 3 mph H 52%30.00 inHg

11:00 AM

Sunny

71° 💧 None 💨 5 mph H 35%29.94 inHg

5:00 PM

Light rain

67° 💧 None 💨 8 mph H 65%29.94 inHg

11:00 PM

Mostly clear night

71° 💧 None 💨 9 mph H 52%29.80 inHg

Tuesday

5:00 AM

Mostly clear night

61° 💧 None 💨 11 mph H 70%29.85 inHg

11:00 AM

Sunny

57° 💧 None 💨 7 mph H 81%29.88 inHg

5:00 PM

Sunny

71° 💧 None 💨 5 mph H 48%29.94 inHg

11:00 PM

Clear night

72° 💧 None 💨 7 mph H 31%29.83 inHg

Wednesday

5:00 AM

Clear night

58° 💧 None 💨 7 mph H 61%29.88 inHg

11:00 AM

Sunny

51° 💧 None 💨 2 mph H 82%29.91 inHg

5:00 PM

Sunny

76° 💧 None 💨 4 mph H 35%29.85 inHg

11:00 PM

Mostly clear night

78° 💧 None 💨 11 mph H 26%29.71 inHg

Thursday

5:00 AM

Partly cloudy night

64° 💧 None 💨 10 mph H 53%29.83 inHg

11:00 AM

Sunny

57° 💧 None 💨 4 mph H 77%29.85 inHg

5:00 PM

Sunny

75° 💧 None 💨 7 mph H 40%29.88 inHg

11:00 PM

Clear night

76° 💧 None 💨 10 mph H 31%29.80 inHg

Friday

5:00 AM

Clear night

60° 💧 None 💨 5 mph H 67%29.88 inHg

11:00 AM

Sunny

54° 💧 None 💨 3 mph H 65%29.94 inHg

5:00 PM

Sunny

76° 💧 None 💨 4 mph H 28%29.97 inHg

11:00 PM

Clear night

79° 💧 None 💨 8 mph H 17%29.83 inHg

Saturday

5:00 AM

Clear night

63° 💧 None 💨 6 mph H 38%29.88 inHg

11:00 AM

Sunny

54° 💧 None 💨 1 mph H 61%29.97 inHg

5:00 PM

Sunny

77° 💧 None 💨 3 mph H 28%29.94 inHg

11:00 PM

Mostly clear night

80° 💧 None 💨 10 mph H 17%29.83 inHg

Sunday

5:00 AM

Clear night

63° 💧 None 💨 7 mph H 51%29.88 inHg

11:00 AM

Mostly sunny

58° 💧 None 💨 2 mph H 60%29.94 inHg

5:00 PM

Mostly sunny

77° 💧 None 💨 2 mph H 30%29.91 inHg

11:00 PM

Partly cloudy night

75° 💧 None 💨 5 mph H 35%29.83 inHg

Monday

5:00 AM

Overcast night

64° 💧 None 💨 4 mph H 64%29.91 inHg

11:00 AM

Light rain

60° 💧 None 💨 4 mph H 80%29.91 inHg

5:00 PM

Light rain

71° 💧 None 💨 8 mph H 46%29.85 inHg

11:00 PM

Partly cloudy night

69° 💧 None 💨 6 mph H 50%29.77 inHg

Tuesday

5:00 AM

Clear night

60° 💧 None 💨 11 mph H 67%29.80 inHg

11:00 AM

Mostly sunny

58° 💧 None 💨 9 mph H 76%29.80 inHg

5:00 PM

Light rain

70° 💧 None 💨 20 mph H 47%29.77 inHg

11:00 PM

Clear night

69° 💧 None 💨 18 mph H 38%29.74 inHg

Wednesday

5:00 AM

Clear night

57° 💧 None 💨 11 mph H 83%29.88 inHg

11:00 AM

Light rain

56° 💧 None 💨 10 mph H 88%29.91 inHg

In St. Johns and, more broadly, across the state of Arizona: The evening will be characterized by mostly cloudy skies, with temperatures staying warm between 82 and 88 degrees Fahrenheit. Light northeast winds will prevail, generally blowing around 3 mph, with occasional gusts reaching up to 7 mph. No precipitation is expected during the next few hours, so dry conditions will continue through the night. Temperatures are expected to remain steady, providing a warm and calm evening. Overall, it should be a mild night with comfortable conditions, although the cloud cover may limit any significant cooling.

15-Day Weather Outlook for St. Johns

Wednesday, Sep 23Wed Sep 23

Overcast 64°/53° 💧 None 💨 8 mph

TomorrowTomorrow

Mostly sunny 72°/48° 💧 None 💨 7 mph

Friday, Sep 25Fri Sep 25

Light rain 76°/51° 💧 0.213 in 💨 9 mph

Saturday, Sep 26Sat Sep 26

Mostly sunny 80°/54° 💧 0.001 in 💨 7 mph

Sunday, Sep 27Sun Sep 27

Light rain 77°/53° 💧 0.055 in 💨 13 mph

Monday, Sep 28Mon Sep 28

Light rain 71°/50° 💧 0.533 in 💨 9 mph

Tuesday, Sep 29Tue Sep 29

Mostly sunny 72°/57° 💧 0.001 in 💨 11 mph

Wednesday, Sep 30Wed Sep 30

Mostly sunny 78°/51° 💧 0.004 in 💨 11 mph

Thursday, Oct 1Thu Oct 1

Partly cloudy 76°/57° 💧 None 💨 10 mph

Friday, Oct 2Fri Oct 2

Sunny 79°/54° 💧 None 💨 8 mph

Saturday, Oct 3Sat Oct 3

Mostly sunny 80°/54° 💧 None 💨 10 mph

Sunday, Oct 4Sun Oct 4

Mostly sunny 77°/58° 💧 0.046 in 💨 7 mph

Monday, Oct 5Mon Oct 5

Light rain 71°/60° 💧 0.276 in 💨 8 mph

Tuesday, Oct 6Tue Oct 6

Light rain 70°/58° 💧 0.029 in 💨 20 mph

Wednesday, Oct 7Wed Oct 7

Sunny 57°/56° 💧 None 💨 11 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in St. Johns

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for St. Johns

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 1:00 AM

PM2.5 Fine particles Good 1,0µg/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 1,3µg/m³

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

O₃ Ozone Fair 65,1µg/m³

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

NO₂ Nitrogen dioxide Good 0,4µg/m³

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

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in St. Johns

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 4,7Moderate 🙂Fair

Tomorrow UV 8,5Very high 🙂Fair

Friday UV 8,3Very high 🙂Fair

Saturday UV 8,4Very high 🙂Fair

Sunday UV 6,0High —Unavailable

Monday UV 6,0High —Unavailable

Tuesday UV 6,0High —Unavailable

Hourly UV index today

7:00 AMUV 0,1 8:00 AMUV 0,4 9:00 AMUV 1,5 10:00 AMUV 2,5 11:00 AMUV 4,0 12:00 PMUV 4,6 1:00 PMUV 4,7 2:00 PMUV 4,0 3:00 PMUV 3,3 4:00 PMUV 2,0 5:00 PMUV 0,6 6:00 PMUV 0,0

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

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

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 St. Johns

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · ST. JOHNS, ARIZONA

Tonight's Stargazing & Shooting Stars

Local night-sky conditions and meteor activity for Jasper.

28/100Best-hour score

No good viewing window tonight Astronomical darkness exists, but current sky conditions are unfavorable.

☁ Cloud cover 100% Real hourly forecast for the best viewing hour.

☾ Moonlight 89% Waxing Gibbous · Moon below the horizon at the best viewing hour.

☄ Meteor activity Southern Taurids Reference ZHR 7 · Radiant 70° high at the best hour.

✦ Estimated visible meteors Poor visibility Meteor activity may occur above the clouds, but local viewing conditions are not suitable.

Chance ≥1 meteor in 30 minNot meaningful

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

SEP 20–NOV 20

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

ACTIVE NOW

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

NOV 6–NOV 30

LeonidsStart NOV 6 · Peak NOV 17 · End NOV 30 · ZHR 15 · 52% 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 St. Johns were last refreshed today at 12:29 AM. The current forecast period extends through 24/09/2026 at 10:00 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.