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Current weather in St. Johns is broken clouds.

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

Now · 6:44 PM

St. Johns Weather & Hourly Forecast

United States · Michigan · 48879

58°F

Mostly cloudy

Feels like: 51°F

💧 Humidity 64% 🌡 Pressure 30.33 inHg 💨 Wind 11 mph 👁 Visibility 23.6 mi ☁ Clouds 77% ☀️ UV index 0.6 · Low 🌅 Sunrise 7:24 AM 🌇 Sunset 7:37 PM

Hourly Forecast for St. Johns

Today

7:00 PM

Mostly cloudy

58° 💧 None 💨 11 mph H 64%30.33 inHg

10:00 PM

Mostly clear night

53° 💧 None 💨 11 mph H 77%30.36 inHg

Tomorrow

1:00 AM

Mostly cloudy night

51° 💧 None 💨 11 mph H 85%30.39 inHg

4:00 AM

Overcast night

51° 💧 None 💨 10 mph H 79%30.39 inHg

7:00 AM

Overcast night

52° 💧 None 💨 10 mph H 81%30.42 inHg

10:00 AM

Mostly sunny

56° 💧 None 💨 10 mph H 80%30.45 inHg

1:00 PM

Mostly sunny

65° 💧 None 💨 14 mph H 63%30.42 inHg

4:00 PM

Mostly sunny

67° 💧 None 💨 13 mph H 53%30.39 inHg

7:00 PM

Sunny

62° 💧 None 💨 11 mph H 63%30.39 inHg

10:00 PM

Clear night

56° 💧 None 💨 10 mph H 73%30.39 inHg

Thursday

1:00 AM

Clear night

52° 💧 None 💨 8 mph H 81%30.42 inHg

4:00 AM

Clear night

49° 💧 None 💨 6 mph H 85%30.42 inHg

7:00 AM

Clear night

48° 💧 None 💨 6 mph H 92%30.42 inHg

10:00 AM

Sunny

56° 💧 None 💨 8 mph H 81%30.42 inHg

1:00 PM

Sunny

65° 💧 None 💨 11 mph H 59%30.39 inHg

4:00 PM

Sunny

67° 💧 None 💨 9 mph H 55%30.36 inHg

Today

7:00 PM

Mostly cloudy

58° 💧 None 💨 11 mph H 64%30.33 inHg

8:00 PM

Mostly cloudy night

56° 💧 None 💨 10 mph H 70%30.33 inHg

9:00 PM

Partly cloudy night

54° 💧 None 💨 10 mph H 73%30.36 inHg

10:00 PM

Mostly clear night

53° 💧 None 💨 11 mph H 77%30.36 inHg

11:00 PM

Partly cloudy night

52° 💧 None 💨 11 mph H 82%30.39 inHg

Tomorrow

12:00 AM

Mostly cloudy night

52° 💧 None 💨 10 mph H 87%30.39 inHg

1:00 AM

Mostly cloudy night

51° 💧 None 💨 11 mph H 85%30.39 inHg

2:00 AM

Overcast night

51° 💧 None 💨 11 mph H 80%30.39 inHg

3:00 AM

Overcast night

51° 💧 None 💨 10 mph H 77%30.39 inHg

4:00 AM

Overcast night

51° 💧 None 💨 10 mph H 79%30.39 inHg

5:00 AM

Overcast night

51° 💧 None 💨 10 mph H 80%30.39 inHg

6:00 AM

Overcast night

52° 💧 None 💨 10 mph H 80%30.39 inHg

7:00 AM

Overcast night

52° 💧 None 💨 10 mph H 81%30.42 inHg

8:00 AM

Overcast

52° 💧 None 💨 10 mph H 83%30.42 inHg

9:00 AM

Mostly cloudy

54° 💧 None 💨 10 mph H 81%30.45 inHg

10:00 AM

Mostly sunny

56° 💧 None 💨 10 mph H 80%30.45 inHg

11:00 AM

Sunny

59° 💧 None 💨 11 mph H 76%30.42 inHg

12:00 PM

Mostly sunny

62° 💧 None 💨 12 mph H 71%30.42 inHg

1:00 PM

Mostly sunny

65° 💧 None 💨 14 mph H 63%30.42 inHg

2:00 PM

Partly cloudy

67° 💧 None 💨 15 mph H 57%30.39 inHg

3:00 PM

Mostly sunny

67° 💧 None 💨 13 mph H 55%30.39 inHg

4:00 PM

Mostly sunny

67° 💧 None 💨 13 mph H 53%30.39 inHg

5:00 PM

Sunny

66° 💧 None 💨 13 mph H 53%30.36 inHg

6:00 PM

Sunny

65° 💧 None 💨 12 mph H 57%30.36 inHg

7:00 PM

Sunny

62° 💧 None 💨 11 mph H 63%30.39 inHg

8:00 PM

Clear night

59° 💧 None 💨 10 mph H 68%30.39 inHg

9:00 PM

Clear night

57° 💧 None 💨 10 mph H 72%30.39 inHg

10:00 PM

Clear night

56° 💧 None 💨 10 mph H 73%30.39 inHg

11:00 PM

Clear night

55° 💧 None 💨 10 mph H 75%30.42 inHg

Thursday

12:00 AM

Clear night

54° 💧 None 💨 8 mph H 78%30.42 inHg

1:00 AM

Clear night

52° 💧 None 💨 8 mph H 81%30.42 inHg

2:00 AM

Clear night

51° 💧 None 💨 8 mph H 82%30.42 inHg

3:00 AM

Clear night

50° 💧 None 💨 8 mph H 83%30.39 inHg

4:00 AM

Clear night

49° 💧 None 💨 6 mph H 85%30.42 inHg

5:00 AM

Clear night

49° 💧 None 💨 7 mph H 88%30.42 inHg

6:00 AM

Clear night

48° 💧 None 💨 8 mph H 90%30.39 inHg

7:00 AM

Clear night

48° 💧 None 💨 6 mph H 92%30.42 inHg

8:00 AM

Sunny

48° 💧 None 💨 7 mph H 93%30.42 inHg

9:00 AM

Sunny

52° 💧 None 💨 7 mph H 88%30.42 inHg

10:00 AM

Sunny

56° 💧 None 💨 8 mph H 81%30.42 inHg

11:00 AM

Sunny

60° 💧 None 💨 10 mph H 74%30.42 inHg

12:00 PM

Sunny

63° 💧 None 💨 11 mph H 64%30.39 inHg

1:00 PM

Sunny

65° 💧 None 💨 11 mph H 59%30.39 inHg

2:00 PM

Sunny

66° 💧 None 💨 10 mph H 57%30.39 inHg

3:00 PM

Sunny

67° 💧 None 💨 8 mph H 56%30.36 inHg

4:00 PM

Sunny

67° 💧 None 💨 9 mph H 55%30.36 inHg

5:00 PM

Sunny

67° 💧 None 💨 9 mph H 55%30.33 inHg

6:00 PM

Sunny

66° 💧 None 💨 9 mph H 58%30.33 inHg

7:00 PM

Mostly sunny

63° 💧 None 💨 6 mph H 68%30.33 inHg

8:00 PM

Partly cloudy night

58° 💧 None 💨 6 mph H 76%30.33 inHg

9:00 PM

Mostly clear night

56° 💧 None 💨 6 mph H 75%30.36 inHg

10:00 PM

Mostly cloudy night

53° 💧 None 💨 4 mph H 76%30.36 inHg

11:00 PM

Mostly cloudy night

51° 💧 None 💨 4 mph H 81%30.36 inHg

Friday

12:00 AM

Overcast night

50° 💧 None 💨 3 mph H 85%30.36 inHg

1:00 AM

Mostly cloudy night

49° 💧 None 💨 3 mph H 87%30.36 inHg

2:00 AM

Overcast night

49° 💧 None 💨 4 mph H 91%30.36 inHg

3:00 AM

Mostly cloudy night

48° 💧 None 💨 4 mph H 93%30.33 inHg

4:00 AM

Mostly cloudy night

47° 💧 None 💨 3 mph H 95%30.36 inHg

5:00 AM

Mostly cloudy night

46° 💧 None 💨 3 mph H 96%30.36 inHg

6:00 AM

Mostly cloudy night

45° 💧 None 💨 3 mph H 97%30.36 inHg

7:00 AM

Mostly cloudy night

45° 💧 None 💨 3 mph H 97%30.39 inHg

8:00 AM

Overcast

45° 💧 None 💨 3 mph H 97%30.39 inHg

11:00 AM

Mostly sunny

57° 💧 None 💨 4 mph H 72%30.39 inHg

2:00 PM

Sunny

64° 💧 None 💨 7 mph H 49%30.33 inHg

5:00 PM

Sunny

66° 💧 None 💨 6 mph H 49%30.27 inHg

8:00 PM

Clear night

57° 💧 None 💨 4 mph H 76%30.27 inHg

11:00 PM

Clear night

52° 💧 None 💨 5 mph H 92%30.30 inHg

Saturday

2:00 AM

Clear night

48° 💧 None 💨 4 mph H 89%30.27 inHg

5:00 AM

Partly cloudy night

46° 💧 None 💨 4 mph H 95%30.24 inHg

8:00 AM

Overcast

47° 💧 None 💨 4 mph H 97%30.27 inHg

11:00 AM

Overcast

60° 💧 None 💨 3 mph H 74%30.27 inHg

2:00 PM

Overcast

66° 💧 None 💨 2 mph H 56%30.21 inHg

5:00 PM

Mostly sunny

67° 💧 None 💨 2 mph H 53%30.15 inHg

8:00 PM

Partly cloudy night

60° 💧 None 💨 0 mph H 69%30.12 inHg

11:00 PM

Overcast night

54° 💧 None 💨 4 mph H 91%30.12 inHg

Sunday

2:00 AM

Mostly cloudy night

51° 💧 None 💨 3 mph H 97%30.12 inHg

5:00 AM

Overcast night

49° 💧 None 💨 0 mph H 100%30.12 inHg

8:00 AM

Overcast

45° 💧 None 💨 4 mph H 100%30.09 inHg

11:00 AM

Mostly cloudy

58° 💧 None 💨 2 mph H 88%30.09 inHg

2:00 PM

Overcast

66° 💧 None 💨 5 mph H 63%30.03 inHg

5:00 PM

Overcast

68° 💧 None 💨 5 mph H 49%29.97 inHg

8:00 PM

Mostly cloudy night

59° 💧 None 💨 3 mph H 58%29.97 inHg

11:00 PM

Overcast night

55° 💧 None 💨 2 mph H 81%29.97 inHg

Monday

2:00 AM

Partly cloudy night

53° 💧 None 💨 0 mph H 87%29.97 inHg

5:00 AM

Mostly clear night

49° 💧 None 💨 3 mph H 92%29.97 inHg

8:00 AM

Sunny

47° 💧 None 💨 1 mph H 93%29.97 inHg

2:00 PM

Sunny

70° 💧 None 💨 4 mph H 55%29.94 inHg

8:00 PM

Clear night

62° 💧 None 💨 4 mph H 76%29.91 inHg

Tuesday

2:00 AM

Partly cloudy night

54° 💧 None 💨 4 mph H 90%29.94 inHg

8:00 AM

Mostly cloudy

50° 💧 None 💨 3 mph H 94%29.97 inHg

2:00 PM

Sunny

73° 💧 None 💨 6 mph H 50%29.91 inHg

8:00 PM

Clear night

65° 💧 None 💨 5 mph H 75%29.88 inHg

Wednesday

2:00 AM

Overcast night

59° 💧 None 💨 7 mph H 90%29.88 inHg

8:00 AM

Overcast

58° 💧 None 💨 9 mph H 85%29.88 inHg

2:00 PM

Mostly cloudy

70° 💧 None 💨 7 mph H 67%29.80 inHg

8:00 PM

Moderate rain

64° 💧 None 💨 3 mph H 93%29.80 inHg

Thursday

2:00 AM

Light rain

63° 💧 None 💨 5 mph H 96%29.83 inHg

8:00 AM

Light rain

65° 💧 None 💨 7 mph H 96%29.83 inHg

2:00 PM

Overcast

73° 💧 None 💨 8 mph H 82%29.83 inHg

8:00 PM

Overcast night

71° 💧 None 💨 10 mph H 79%29.80 inHg

Friday

2:00 AM

Partly cloudy night

68° 💧 None 💨 11 mph H 77%29.80 inHg

8:00 AM

Light rain

67° 💧 None 💨 14 mph H 88%29.74 inHg

2:00 PM

Overcast

72° 💧 None 💨 15 mph H 78%29.77 inHg

8:00 PM

Clear night

67° 💧 None 💨 7 mph H 79%29.80 inHg

Saturday

2:00 AM

Partly cloudy night

63° 💧 None 💨 6 mph H 89%29.77 inHg

8:00 AM

Moderate rain

62° 💧 None 💨 8 mph H 96%29.74 inHg

2:00 PM

Sunny

70° 💧 None 💨 10 mph H 60%29.68 inHg

8:00 PM

Overcast night

62° 💧 None 💨 5 mph H 75%29.65 inHg

Sunday

2:00 AM

Mostly cloudy night

56° 💧 None 💨 7 mph H 93%29.62 inHg

8:00 AM

Overcast

54° 💧 None 💨 9 mph H 96%29.65 inHg

2:00 PM

Light rain

64° 💧 None 💨 16 mph H 61%29.71 inHg

8:00 PM

Mostly clear night

57° 💧 None 💨 11 mph H 78%29.80 inHg

Monday

2:00 AM

Mostly clear night

51° 💧 None 💨 7 mph H 94%29.83 inHg

8:00 AM

Overcast

51° 💧 None 💨 10 mph H 80%29.85 inHg

2:00 PM

Overcast

56° 💧 None 💨 14 mph H 61%29.85 inHg

8:00 PM

Overcast night

53° 💧 None 💨 12 mph H 75%29.91 inHg

Tuesday

2:00 AM

Overcast night

49° 💧 None 💨 10 mph H 86%29.94 inHg

8:00 AM

Mostly sunny

50° 💧 None 💨 9 mph H 88%29.97 inHg

2:00 PM

Overcast

57° 💧 None 💨 11 mph H 70%29.97 inHg

8:00 PM

Overcast night

55° 💧 None 💨 6 mph H 74%30.00 inHg

Wednesday

2:00 AM

Overcast night

52° 💧 None 💨 7 mph H 82%30.06 inHg

8:00 AM

Overcast

51° 💧 None 💨 5 mph H 84%30.09 inHg

In St. Johns and, more broadly, across the state of Michigan: This morning, the sky will be mostly cloudy with cool temperatures ranging from 51 to 58 degrees Fahrenheit. Expect moderate northeast winds, reaching up to 14 mph, with gusts as high as 28 mph. Conditions will remain relatively stable throughout the morning, with no precipitation expected. As the day progresses into the afternoon, the cloud cover will persist, keeping temperatures steady in the same cool range. Winds will continue from the northeast, maintaining speeds around 10 to 14 mph with occasional gusts. Overall, it will be a breezy, overcast day with no rain forecasted, so outdoor plans can proceed without concern for wet conditions.

15-Day Weather Outlook for St. Johns

TomorrowTomorrow

Mostly cloudy 67°/51° 💧 None 💨 15 mph

Thursday, Sep 24Thu Sep 24

Mostly sunny 67°/48° 💧 None 💨 11 mph

Friday, Sep 25Fri Sep 25

Overcast 66°/45° 💧 None 💨 6 mph

Saturday, Sep 26Sat Sep 26

Mostly sunny 67°/45° 💧 None 💨 6 mph

Sunday, Sep 27Sun Sep 27

Mostly sunny 68°/45° 💧 None 💨 3 mph

Monday, Sep 28Mon Sep 28

Partly cloudy 68°/47° 💧 None 💨 5 mph

Tuesday, Sep 29Tue Sep 29

Sunny 71°/45° 💧 None 💨 3 mph

Wednesday, Sep 30Wed Sep 30

Mostly sunny 75°/49° 💧 None 💨 4 mph

Thursday, Oct 1Thu Oct 1

Overcast 77°/57° 💧 None 💨 5 mph

Friday, Oct 2Fri Oct 2

Overcast 79°/60° 💧 None 💨 6 mph

Saturday, Oct 3Sat Oct 3

Partly cloudy 83°/61° 💧 None 💨 7 mph

Sunday, Oct 4Sun Oct 4

Moderate rain 73°/65° 💧 0.239 in 💨 13 mph

Monday, Oct 5Mon Oct 5

Light rain 62°/46° 💧 0.107 in 💨 11 mph

Tuesday, Oct 6Tue Oct 6

Overcast 57°/46° 💧 None 💨 6 mph

Wednesday, Oct 7Wed Oct 7

Overcast 54°/54° 💧 0.004 in 💨 2 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 7:00 PM

PM2.5 Fine particles Good 2,8µg/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 3,4µg/m³

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

O₃ Ozone Fair 87,0µg/m³

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

NO₂ Nitrogen dioxide Good 2,7µg/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 4,9Moderate 🙂Fair

Tomorrow UV 5,0Moderate 🙂Fair

Thursday UV 5,2Moderate 😐Moderate

Friday UV 5,1Moderate 😐Moderate

Saturday UV 4,9Moderate 😐Moderate

Sunday UV 5,0Moderate —Unavailable

Monday UV 6,0High —Unavailable

Hourly UV index today

7:00 PMUV 0,1

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, MICHIGAN

Tonight's Stargazing & Shooting Stars

Good observing conditions. Best local viewing window: 10:00 PM–11:00 PM.

78/100Best-hour score

BEST TIME TONIGHT 10:00 PM–11:00 PM Astronomical darkness: 9:11 PM–5:51 AM

☁ Cloud cover 20% Real hourly forecast for the best viewing hour.

☾ Moonlight 87% Waxing Gibbous · Moon about 29° above the horizon at the best viewing hour.

☄ Meteor activity Southern Taurids Reference ZHR 7 · Radiant 0° high at the best hour.

✦ Estimated visible meteors 0–1/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min5%

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.

DISCOVER WEATHER NEARBY Weather in other cities

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Forecast data for St. Johns were last refreshed today at 6:44 PM. The current forecast period extends through 24/09/2026 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.