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Current weather in Byrnes Mill is overcast clouds.

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

Now · 12:04 PM

Byrnes Mill Weather & Hourly Forecast

United States · Missouri · 63051

69°F

Overcast

Feels like: 69°F

💧 Humidity 67% 🌡 Pressure 30.18 inHg 💨 Wind 5 mph 👁 Visibility 21.2 mi ☁ Clouds 100% ☀️ UV index 3.8 · Moderate 🌅 Sunrise 6:48 AM 🌇 Sunset 7:00 PM

Hourly Forecast for Byrnes Mill

Today

1:00 PM

Overcast

71° 💧 None 💨 6 mph H 64%30.15 inHg

4:00 PM

Overcast

71° 💧 None 💨 7 mph H 65%30.12 inHg

7:00 PM

Overcast

69° 💧 None 💨 5 mph H 67%30.12 inHg

10:00 PM

Overcast night

67° 💧 None 💨 6 mph H 68%30.18 inHg

Tomorrow

1:00 AM

Overcast night

65° 💧 None 💨 6 mph H 69%30.21 inHg

4:00 AM

Clear night

59° 💧 None 💨 6 mph H 82%30.21 inHg

7:00 AM

Sunny

57° 💧 None 💨 5 mph H 93%30.24 inHg

10:00 AM

Mostly sunny

66° 💧 0.001 in 💨 8 mph H 69%30.27 inHg

1:00 PM

Overcast

70° 💧 None 💨 8 mph H 57%30.27 inHg

4:00 PM

Overcast

69° 💧 0.001 in 💨 8 mph H 61%30.24 inHg

7:00 PM

Clear night

66° 💧 None 💨 5 mph H 70%30.21 inHg

10:00 PM

Overcast night

63° 💧 None 💨 5 mph H 83%30.24 inHg

Thursday

1:00 AM

Overcast night

63° 💧 None 💨 4 mph H 81%30.24 inHg

4:00 AM

Overcast night

63° 💧 None 💨 5 mph H 83%30.24 inHg

7:00 AM

Overcast

61° 💧 None 💨 4 mph H 88%30.27 inHg

10:00 AM

Mostly cloudy

66° 💧 0.002 in 💨 6 mph H 71%30.27 inHg

Today

1:00 PM

Overcast

71° 💧 None 💨 6 mph H 64%30.15 inHg

2:00 PM

Overcast

72° 💧 None 💨 6 mph H 63%30.15 inHg

3:00 PM

Overcast

72° 💧 None 💨 7 mph H 64%30.12 inHg

4:00 PM

Overcast

71° 💧 None 💨 7 mph H 65%30.12 inHg

5:00 PM

Overcast

70° 💧 None 💨 7 mph H 66%30.12 inHg

6:00 PM

Overcast

69° 💧 None 💨 7 mph H 65%30.12 inHg

7:00 PM

Overcast

69° 💧 None 💨 5 mph H 67%30.12 inHg

8:00 PM

Overcast night

68° 💧 None 💨 6 mph H 67%30.15 inHg

9:00 PM

Overcast night

68° 💧 None 💨 7 mph H 67%30.15 inHg

10:00 PM

Overcast night

67° 💧 None 💨 6 mph H 68%30.18 inHg

11:00 PM

Overcast night

67° 💧 None 💨 7 mph H 68%30.21 inHg

Tomorrow

12:00 AM

Overcast night

66° 💧 None 💨 6 mph H 67%30.21 inHg

1:00 AM

Overcast night

65° 💧 None 💨 6 mph H 69%30.21 inHg

2:00 AM

Mostly clear night

64° 💧 None 💨 6 mph H 72%30.21 inHg

3:00 AM

Clear night

61° 💧 None 💨 6 mph H 78%30.21 inHg

4:00 AM

Clear night

59° 💧 None 💨 6 mph H 82%30.21 inHg

5:00 AM

Clear night

58° 💧 None 💨 6 mph H 86%30.21 inHg

6:00 AM

Clear night

57° 💧 None 💨 5 mph H 89%30.24 inHg

7:00 AM

Sunny

57° 💧 None 💨 5 mph H 93%30.24 inHg

8:00 AM

Sunny

59° 💧 None 💨 5 mph H 87%30.27 inHg

9:00 AM

Sunny

62° 💧 None 💨 6 mph H 79%30.27 inHg

10:00 AM

Mostly sunny

66° 💧 0.001 in 💨 8 mph H 69%30.27 inHg

11:00 AM

Mostly cloudy

68° 💧 0.001 in 💨 9 mph H 61%30.30 inHg

12:00 PM

Overcast

69° 💧 None 💨 9 mph H 58%30.27 inHg

1:00 PM

Overcast

70° 💧 None 💨 8 mph H 57%30.27 inHg

2:00 PM

Overcast

71° 💧 None 💨 8 mph H 56%30.24 inHg

3:00 PM

Overcast

70° 💧 None 💨 8 mph H 59%30.24 inHg

4:00 PM

Overcast

69° 💧 0.001 in 💨 8 mph H 61%30.24 inHg

5:00 PM

Overcast

69° 💧 None 💨 8 mph H 61%30.21 inHg

6:00 PM

Overcast

69° 💧 None 💨 7 mph H 63%30.21 inHg

7:00 PM

Clear night

66° 💧 None 💨 5 mph H 70%30.21 inHg

8:00 PM

Mostly clear night

64° 💧 None 💨 5 mph H 77%30.24 inHg

9:00 PM

Mostly cloudy night

63° 💧 None 💨 6 mph H 82%30.24 inHg

10:00 PM

Overcast night

63° 💧 None 💨 5 mph H 83%30.24 inHg

11:00 PM

Overcast night

63° 💧 None 💨 5 mph H 83%30.24 inHg

Thursday

12:00 AM

Overcast night

63° 💧 None 💨 5 mph H 82%30.24 inHg

1:00 AM

Overcast night

63° 💧 None 💨 4 mph H 81%30.24 inHg

2:00 AM

Overcast night

63° 💧 None 💨 4 mph H 82%30.24 inHg

3:00 AM

Overcast night

63° 💧 None 💨 5 mph H 82%30.24 inHg

4:00 AM

Overcast night

63° 💧 None 💨 5 mph H 83%30.24 inHg

5:00 AM

Overcast night

62° 💧 None 💨 4 mph H 86%30.24 inHg

6:00 AM

Overcast night

61° 💧 None 💨 4 mph H 89%30.24 inHg

7:00 AM

Overcast

61° 💧 None 💨 4 mph H 88%30.27 inHg

8:00 AM

Overcast

63° 💧 None 💨 5 mph H 83%30.27 inHg

9:00 AM

Overcast

64° 💧 None 💨 5 mph H 78%30.27 inHg

10:00 AM

Mostly cloudy

66° 💧 0.001 in 💨 6 mph H 71%30.27 inHg

11:00 AM

Overcast

68° 💧 0.001 in 💨 6 mph H 64%30.27 inHg

12:00 PM

Overcast

70° 💧 0.001 in 💨 5 mph H 61%30.27 inHg

1:00 PM

Overcast

70° 💧 None 💨 5 mph H 62%30.24 inHg

2:00 PM

Overcast

71° 💧 None 💨 5 mph H 62%30.24 inHg

3:00 PM

Overcast

71° 💧 None 💨 5 mph H 60%30.21 inHg

4:00 PM

Overcast

71° 💧 None 💨 7 mph H 61%30.21 inHg

5:00 PM

Overcast

71° 💧 None 💨 7 mph H 62%30.21 inHg

6:00 PM

Partly cloudy

70° 💧 None 💨 6 mph H 62%30.21 inHg

7:00 PM

Mostly clear night

68° 💧 None 💨 3 mph H 71%30.21 inHg

Friday

4:00 AM

Partly cloudy night

62° 💧 None 💨 4 mph H 91%30.21 inHg

7:00 AM

Partly cloudy

61° 💧 None 💨 4 mph H 93%30.24 inHg

10:00 AM

Mostly sunny

70° 💧 None 💨 4 mph H 74%30.24 inHg

1:00 PM

Overcast

76° 💧 None 💨 4 mph H 54%30.21 inHg

4:00 PM

Overcast

75° 💧 None 💨 6 mph H 52%30.15 inHg

7:00 PM

Partly cloudy night

70° 💧 None 💨 6 mph H 68%30.15 inHg

10:00 PM

Overcast night

66° 💧 None 💨 6 mph H 74%30.18 inHg

Saturday

1:00 AM

Partly cloudy night

64° 💧 None 💨 6 mph H 71%30.15 inHg

4:00 AM

Light rain

62° 💧 None 💨 5 mph H 73%30.15 inHg

7:00 AM

Overcast

60° 💧 None 💨 5 mph H 71%30.15 inHg

10:00 AM

Overcast

66° 💧 None 💨 6 mph H 56%30.18 inHg

1:00 PM

Overcast

71° 💧 None 💨 6 mph H 49%30.12 inHg

4:00 PM

Overcast

73° 💧 None 💨 7 mph H 46%30.09 inHg

7:00 PM

Overcast night

68° 💧 None 💨 6 mph H 57%30.06 inHg

10:00 PM

Overcast night

66° 💧 None 💨 5 mph H 57%30.06 inHg

Sunday

1:00 AM

Mostly clear night

63° 💧 None 💨 5 mph H 66%30.06 inHg

4:00 AM

Mostly clear night

61° 💧 None 💨 6 mph H 72%30.06 inHg

7:00 AM

Mostly sunny

61° 💧 None 💨 4 mph H 74%30.06 inHg

10:00 AM

Mostly cloudy

71° 💧 None 💨 4 mph H 53%30.06 inHg

1:00 PM

Mostly cloudy

79° 💧 None 💨 5 mph H 40%30.03 inHg

4:00 PM

Mostly sunny

82° 💧 None 💨 5 mph H 39%29.94 inHg

7:00 PM

Mostly clear night

74° 💧 None 💨 4 mph H 55%29.94 inHg

10:00 PM

Mostly clear night

70° 💧 None 💨 7 mph H 60%29.97 inHg

Monday

1:00 AM

Partly cloudy night

67° 💧 None 💨 7 mph H 69%29.97 inHg

7:00 AM

Mostly cloudy

66° 💧 None 💨 5 mph H 63%29.97 inHg

1:00 PM

Sunny

60° 💧 None 💨 4 mph H 76%29.97 inHg

7:00 PM

Clear night

77° 💧 None 💨 4 mph H 42%29.94 inHg

Tuesday

1:00 AM

Clear night

72° 💧 None 💨 4 mph H 48%29.88 inHg

7:00 AM

Sunny

63° 💧 None 💨 6 mph H 60%29.91 inHg

1:00 PM

Sunny

58° 💧 None 💨 6 mph H 69%29.94 inHg

7:00 PM

Mostly clear night

80° 💧 None 💨 7 mph H 32%29.91 inHg

Wednesday

1:00 AM

Overcast night

74° 💧 None 💨 5 mph H 42%29.88 inHg

7:00 AM

Overcast

66° 💧 None 💨 7 mph H 47%29.91 inHg

1:00 PM

Mostly cloudy

61° 💧 None 💨 6 mph H 61%29.94 inHg

7:00 PM

Overcast night

84° 💧 None 💨 9 mph H 26%29.94 inHg

Thursday

1:00 AM

Overcast night

78° 💧 None 💨 7 mph H 31%29.88 inHg

7:00 AM

Mostly cloudy

71° 💧 None 💨 8 mph H 37%29.97 inHg

1:00 PM

Mostly cloudy

67° 💧 None 💨 8 mph H 49%30.00 inHg

7:00 PM

Mostly cloudy night

85° 💧 None 💨 8 mph H 29%30.03 inHg

Friday

1:00 AM

Overcast night

81° 💧 None 💨 6 mph H 31%29.97 inHg

7:00 AM

Overcast

75° 💧 None 💨 7 mph H 39%30.03 inHg

1:00 PM

Overcast

71° 💧 None 💨 6 mph H 53%30.06 inHg

7:00 PM

Overcast night

81° 💧 None 💨 6 mph H 42%30.06 inHg

Saturday

1:00 AM

Mostly cloudy night

78° 💧 None 💨 5 mph H 54%30.00 inHg

7:00 AM

Partly cloudy

76° 💧 None 💨 7 mph H 53%30.00 inHg

1:00 PM

Overcast

76° 💧 None 💨 8 mph H 51%30.00 inHg

7:00 PM

Overcast night

70° 💧 None 💨 10 mph H 94%30.03 inHg

Sunday

1:00 AM

Light rain

70° 💧 None 💨 7 mph H 98%29.94 inHg

7:00 AM

Light rain

70° 💧 None 💨 6 mph H 98%29.94 inHg

1:00 PM

Light rain

70° 💧 None 💨 3 mph H 99%29.94 inHg

7:00 PM

Light rain

79° 💧 None 💨 3 mph H 76%29.94 inHg

Monday

1:00 AM

Light rain

71° 💧 None 💨 5 mph H 98%29.97 inHg

7:00 AM

Overcast night

67° 💧 None 💨 9 mph H 71%30.06 inHg

1:00 PM

Overcast

62° 💧 None 💨 8 mph H 75%30.12 inHg

7:00 PM

Overcast night

67° 💧 None 💨 7 mph H 72%30.12 inHg

Tuesday

1:00 AM

Overcast night

67° 💧 None 💨 5 mph H 70%30.09 inHg

7:00 AM

Light rain

58° 💧 None 💨 5 mph H 89%30.09 inHg

1:00 PM

Overcast

56° 💧 None 💨 6 mph H 97%30.09 inHg

7:00 PM

Clear night

68° 💧 None 💨 7 mph H 53%30.06 inHg

Wednesday

1:00 AM

Clear night

63° 💧 None 💨 6 mph H 63%30.06 inHg

In Byrnes Mill and, more broadly, across the state of Missouri: This morning will start with mostly cloudy skies and mild temperatures around 67 degrees. Winds will be light from the northeast at up to 9 mph, with occasional gusts reaching 18 mph. As the day progresses, temperatures are expected to warm into the low 80s, reaching around 83. Rain may develop, with some areas experiencing about 0.08 inches of accumulation. The highest chance of rain is about 85%, so keep an umbrella handy if you're heading outdoors. Winds will remain light during the afternoon, continuing from the northeast at similar speeds. Overall, it looks like a warm, mostly cloudy day with a good likelihood of some rain, especially later in the day.

15-Day Weather Outlook for Byrnes Mill

TomorrowTomorrow

Overcast 71°/57° 💧 None 💨 9 mph

Thursday, Sep 24Thu Sep 24

Overcast 71°/61° 💧 None 💨 7 mph

Friday, Sep 25Fri Sep 25

Partly cloudy 76°/61° 💧 0.010 in 💨 6 mph

Saturday, Sep 26Sat Sep 26

Light rain 73°/60° 💧 0.013 in 💨 7 mph

Sunday, Sep 27Sun Sep 27

Mostly sunny 82°/61° 💧 None 💨 7 mph

Monday, Sep 28Mon Sep 28

Partly cloudy 77°/60° 💧 0.023 in 💨 7 mph

Tuesday, Sep 29Tue Sep 29

Mostly sunny 80°/58° 💧 None 💨 7 mph

Wednesday, Sep 30Wed Sep 30

Overcast 84°/61° 💧 None 💨 9 mph

Thursday, Oct 1Thu Oct 1

Overcast 85°/67° 💧 None 💨 8 mph

Friday, Oct 2Fri Oct 2

Overcast 81°/71° 💧 None 💨 7 mph

Saturday, Oct 3Sat Oct 3

Overcast 78°/70° 💧 0.223 in 💨 10 mph

Sunday, Oct 4Sun Oct 4

Light rain 79°/70° 💧 0.362 in 💨 7 mph

Monday, Oct 5Mon Oct 5

Light rain 71°/62° 💧 0.740 in 💨 9 mph

Tuesday, Oct 6Tue Oct 6

Light rain 68°/56° 💧 0.189 in 💨 7 mph

Wednesday, Oct 7Wed Oct 7

Sunny 63°/63° 💧 None 💨 6 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Byrnes Mill

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Byrnes Mill

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 1:00 PM

PM2.5 Fine particles Good 3,6µg/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 3,8µg/m³

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

O₃ Ozone Good 51,4µg/m³

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

NO₂ Nitrogen dioxide Good 3,0µg/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 Byrnes Mill

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 4,4Moderate 😊Good

Tomorrow UV 6,6High 🙂Fair

Thursday UV 6,9High 🙂Fair

Friday UV 5,9Moderate 🙂Fair

Saturday UV 6,0High 🙂Fair

Sunday UV 6,0High —Unavailable

Monday UV 7,0High —Unavailable

Hourly UV index today

1:00 PMUV 4,4 2:00 PMUV 4,3 3:00 PMUV 3,8 4:00 PMUV 2,3 5:00 PMUV 1,1 6:00 PMUV 0,3 7:00 PMUV 0,0

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

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

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 Byrnes Mill

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · BYRNES MILL, MISSOURI

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 4:00 AM–5:00 AM.

99/100Best-hour score

BEST TIME TONIGHT 4:00 AM–5:00 AM Astronomical darkness: 8:28 PM–5:22 AM

☁ Cloud cover 2% 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 66° 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 min74%

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 Byrnes Mill were last refreshed today at 12:04 PM. The current forecast period extends through 24/09/2026 at 10:00 AM. 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.