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Current weather in Key Largo is broken clouds.

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Is the weather forecast for Key Largo updated regularly?

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

Now · 2:28 AM

Key Largo Weather & Hourly Forecast

United States · Florida · 33037

84°F

Mostly cloudy night

Feels like: 84°F

💧 Humidity 72% 🌡 Pressure 29.91 inHg 💨 Wind 17 mph 👁 Visibility 9.2 mi ☁ Clouds 84% ☀️ UV index 0.0 · Low 🌅 Sunrise 7:09 AM 🌇 Sunset 7:18 PM

Hourly Forecast for Key Largo

Today

3:00 AM

Light rain

83° 💧 0.121 in 💨 19 mph H 73%29.91 inHg

6:00 AM

Light thunderstorms

81° 💧 0.138 in 💨 11 mph H 80%29.91 inHg

9:00 AM

Light thunderstorms

80° 💧 0.096 in 💨 12 mph H 83%29.97 inHg

12:00 PM

Overcast

81° 💧 0.049 in 💨 4 mph H 79%29.94 inHg

3:00 PM

Light rain

82° 💧 0.153 in 💨 5 mph H 78%29.88 inHg

6:00 PM

Light rain

80° 💧 0.085 in 💨 8 mph H 85%29.88 inHg

9:00 PM

Light rain

80° 💧 0.012 in 💨 9 mph H 84%29.91 inHg

Tomorrow

12:00 AM

Mostly cloudy night

80° 💧 0.001 in 💨 7 mph H 85%29.91 inHg

3:00 AM

Mostly clear night

80° 💧 None 💨 12 mph H 88%29.85 inHg

6:00 AM

Overcast night

79° 💧 None 💨 12 mph H 92%29.88 inHg

9:00 AM

Mostly cloudy

79° 💧 0.022 in 💨 12 mph H 91%29.91 inHg

12:00 PM

Light rain

82° 💧 0.047 in 💨 5 mph H 79%29.94 inHg

3:00 PM

Mostly sunny

80° 💧 0.022 in 💨 1 mph H 83%29.88 inHg

6:00 PM

Light rain

82° 💧 0.064 in 💨 2 mph H 80%29.88 inHg

9:00 PM

Partly cloudy night

81° 💧 0.002 in 💨 3 mph H 79%29.91 inHg

Friday

12:00 AM

Clear night

82° 💧 None 💨 5 mph H 80%29.91 inHg

Today

3:00 AM

Light rain

83° 💧 0.012 in 💨 19 mph H 73%29.91 inHg

4:00 AM

Light thunderstorms

82° 💧 0.046 in 💨 15 mph H 79%29.91 inHg

5:00 AM

Light thunderstorms

81° 💧 0.063 in 💨 14 mph H 80%29.91 inHg

6:00 AM

Light thunderstorms

81° 💧 0.097 in 💨 11 mph H 80%29.91 inHg

7:00 AM

Light rain

81° 💧 0.022 in 💨 10 mph H 79%29.91 inHg

8:00 AM

Light rain

81° 💧 0.019 in 💨 11 mph H 77%29.94 inHg

9:00 AM

Light thunderstorms

80° 💧 0.069 in 💨 12 mph H 83%29.97 inHg

10:00 AM

Light rain

81° 💧 0.019 in 💨 9 mph H 80%29.97 inHg

11:00 AM

Light rain

81° 💧 0.008 in 💨 4 mph H 79%29.97 inHg

12:00 PM

Overcast

81° 💧 0.004 in 💨 4 mph H 79%29.94 inHg

1:00 PM

Light thunderstorms

81° 💧 0.011 in 💨 3 mph H 80%29.94 inHg

2:00 PM

Light thunderstorms

81° 💧 0.035 in 💨 2 mph H 80%29.91 inHg

3:00 PM

Light rain

82° 💧 0.008 in 💨 5 mph H 78%29.88 inHg

4:00 PM

Light thunderstorms

81° 💧 0.062 in 💨 10 mph H 79%29.91 inHg

5:00 PM

Light thunderstorms

79° 💧 0.083 in 💨 11 mph H 86%29.88 inHg

6:00 PM

Light rain

80° 💧 0.046 in 💨 8 mph H 85%29.88 inHg

7:00 PM

Light rain

81° 💧 0.016 in 💨 8 mph H 81%29.88 inHg

8:00 PM

Light thunderstorms

80° 💧 0.023 in 💨 11 mph H 83%29.91 inHg

9:00 PM

Light rain

80° 💧 0.009 in 💨 9 mph H 84%29.91 inHg

10:00 PM

Mostly cloudy night

80° 💧 0.003 in 💨 8 mph H 86%29.94 inHg

11:00 PM

Overcast night

80° 💧 None 💨 6 mph H 85%29.91 inHg

Tomorrow

12:00 AM

Mostly cloudy night

80° 💧 None 💨 7 mph H 85%29.91 inHg

1:00 AM

Mostly cloudy night

80° 💧 0.001 in 💨 8 mph H 86%29.88 inHg

2:00 AM

Mostly clear night

80° 💧 None 💨 10 mph H 86%29.88 inHg

3:00 AM

Mostly clear night

80° 💧 None 💨 12 mph H 88%29.85 inHg

4:00 AM

Partly cloudy night

79° 💧 None 💨 14 mph H 92%29.85 inHg

5:00 AM

Partly cloudy night

79° 💧 None 💨 14 mph H 92%29.85 inHg

6:00 AM

Overcast night

79° 💧 None 💨 12 mph H 92%29.88 inHg

7:00 AM

Overcast night

79° 💧 None 💨 13 mph H 92%29.88 inHg

8:00 AM

Mostly cloudy

79° 💧 None 💨 14 mph H 93%29.88 inHg

9:00 AM

Mostly cloudy

79° 💧 None 💨 12 mph H 91%29.91 inHg

10:00 AM

Mostly cloudy

80° 💧 None 💨 12 mph H 88%29.94 inHg

11:00 AM

Light rain

81° 💧 0.022 in 💨 12 mph H 82%29.94 inHg

12:00 PM

Light rain

82° 💧 0.014 in 💨 5 mph H 79%29.94 inHg

1:00 PM

Light rain

81° 💧 0.014 in 💨 1 mph H 79%29.94 inHg

2:00 PM

Light rain

80° 💧 0.019 in 💨 3 mph H 83%29.91 inHg

3:00 PM

Mostly sunny

80° 💧 0.003 in 💨 1 mph H 83%29.88 inHg

4:00 PM

Partly cloudy

81° 💧 0.002 in 💨 2 mph H 81%29.85 inHg

5:00 PM

Light rain

81° 💧 0.016 in 💨 2 mph H 81%29.85 inHg

6:00 PM

Light rain

82° 💧 0.010 in 💨 2 mph H 80%29.88 inHg

7:00 PM

Light rain

80° 💧 0.031 in 💨 4 mph H 83%29.88 inHg

8:00 PM

Light rain

81° 💧 0.023 in 💨 4 mph H 81%29.88 inHg

9:00 PM

Partly cloudy night

81° 💧 0.001 in 💨 3 mph H 79%29.91 inHg

10:00 PM

Partly cloudy night

82° 💧 None 💨 3 mph H 78%29.91 inHg

11:00 PM

Mostly clear night

82° 💧 0.001 in 💨 4 mph H 78%29.91 inHg

Friday

12:00 AM

Clear night

82° 💧 None 💨 5 mph H 80%29.91 inHg

1:00 AM

Mostly clear night

81° 💧 None 💨 8 mph H 84%29.88 inHg

2:00 AM

Clear night

80° 💧 None 💨 9 mph H 88%29.88 inHg

3:00 AM

Partly cloudy night

80° 💧 None 💨 10 mph H 88%29.88 inHg

4:00 AM

Mostly clear night

80° 💧 None 💨 11 mph H 89%29.88 inHg

5:00 AM

Clear night

80° 💧 None 💨 12 mph H 89%29.88 inHg

6:00 AM

Clear night

79° 💧 None 💨 14 mph H 91%29.88 inHg

7:00 AM

Clear night

79° 💧 None 💨 15 mph H 92%29.88 inHg

8:00 AM

Sunny

78° 💧 None 💨 15 mph H 93%29.91 inHg

9:00 AM

Sunny

79° 💧 None 💨 13 mph H 91%29.91 inHg

10:00 AM

Sunny

80° 💧 None 💨 12 mph H 88%29.94 inHg

11:00 AM

Sunny

81° 💧 None 💨 10 mph H 83%29.94 inHg

12:00 PM

Sunny

82° 💧 None 💨 8 mph H 78%29.94 inHg

1:00 PM

Sunny

83° 💧 None 💨 5 mph H 74%29.94 inHg

2:00 PM

Sunny

84° 💧 None 💨 3 mph H 71%29.91 inHg

3:00 PM

Sunny

84° 💧 None 💨 4 mph H 71%29.88 inHg

4:00 PM

Sunny

85° 💧 0.001 in 💨 5 mph H 70%29.85 inHg

5:00 PM

Mostly sunny

86° 💧 None 💨 4 mph H 65%29.85 inHg

6:00 PM

Mostly sunny

86° 💧 None 💨 4 mph H 61%29.85 inHg

7:00 PM

Mostly sunny

86° 💧 0.001 in 💨 5 mph H 60%29.88 inHg

8:00 PM

Mostly clear night

86° 💧 0.002 in 💨 8 mph H 62%29.88 inHg

11:00 PM

Mostly clear night

83° 💧 None 💨 15 mph H 73%29.94 inHg

Saturday

2:00 AM

Clear night

80° 💧 None 💨 16 mph H 84%29.91 inHg

5:00 AM

Clear night

79° 💧 None 💨 15 mph H 86%29.88 inHg

8:00 AM

Sunny

78° 💧 None 💨 15 mph H 88%29.91 inHg

11:00 AM

Sunny

80° 💧 None 💨 12 mph H 81%29.97 inHg

2:00 PM

Sunny

82° 💧 None 💨 6 mph H 67%29.94 inHg

5:00 PM

Mostly sunny

82° 💧 None 💨 4 mph H 69%29.88 inHg

8:00 PM

Mostly clear night

82° 💧 None 💨 1 mph H 69%29.91 inHg

11:00 PM

Light rain

81° 💧 None 💨 6 mph H 72%29.94 inHg

Sunday

2:00 AM

Clear night

80° 💧 None 💨 6 mph H 71%29.91 inHg

5:00 AM

Clear night

78° 💧 None 💨 13 mph H 80%29.88 inHg

8:00 AM

Overcast

77° 💧 None 💨 13 mph H 79%29.91 inHg

11:00 AM

Mostly sunny

79° 💧 None 💨 11 mph H 63%29.97 inHg

2:00 PM

Mostly sunny

81° 💧 None 💨 4 mph H 59%29.94 inHg

5:00 PM

Mostly sunny

81° 💧 None 💨 2 mph H 59%29.88 inHg

8:00 PM

Overcast night

82° 💧 None 💨 2 mph H 62%29.91 inHg

11:00 PM

Overcast night

82° 💧 None 💨 1 mph H 62%29.94 inHg

Monday

2:00 AM

Overcast night

82° 💧 None 💨 4 mph H 62%29.91 inHg

5:00 AM

Overcast night

82° 💧 None 💨 4 mph H 62%29.91 inHg

8:00 AM

Overcast

82° 💧 None 💨 4 mph H 61%29.94 inHg

11:00 AM

Mostly cloudy

82° 💧 None 💨 2 mph H 61%29.97 inHg

2:00 PM

Overcast

83° 💧 None 💨 3 mph H 60%29.94 inHg

8:00 PM

Mostly clear night

81° 💧 None 💨 4 mph H 54%29.94 inHg

Tuesday

2:00 AM

Partly cloudy night

82° 💧 None 💨 3 mph H 55%29.91 inHg

8:00 AM

Partly cloudy

82° 💧 None 💨 4 mph H 59%29.88 inHg

2:00 PM

Mostly sunny

81° 💧 None 💨 9 mph H 67%29.94 inHg

8:00 PM

Light rain

79° 💧 None 💨 8 mph H 76%29.94 inHg

Wednesday

2:00 AM

Clear night

81° 💧 None 💨 7 mph H 75%29.91 inHg

8:00 AM

Mostly sunny

82° 💧 None 💨 10 mph H 74%29.91 inHg

2:00 PM

Light rain

80° 💧 None 💨 6 mph H 75%29.94 inHg

8:00 PM

Clear night

80° 💧 None 💨 4 mph H 78%29.91 inHg

Thursday

2:00 AM

Partly cloudy night

82° 💧 None 💨 9 mph H 79%29.88 inHg

8:00 AM

Partly cloudy

83° 💧 None 💨 13 mph H 75%29.91 inHg

2:00 PM

Partly cloudy

83° 💧 None 💨 13 mph H 78%29.91 inHg

8:00 PM

Light rain

85° 💧 None 💨 10 mph H 67%29.91 inHg

Friday

2:00 AM

Mostly cloudy night

79° 💧 None 💨 13 mph H 82%29.94 inHg

8:00 AM

Partly cloudy

82° 💧 None 💨 14 mph H 84%29.91 inHg

2:00 PM

Light thunderstorms

80° 💧 None 💨 9 mph H 82%29.94 inHg

8:00 PM

Mostly cloudy night

81° 💧 None 💨 4 mph H 82%29.91 inHg

Saturday

2:00 AM

Overcast night

83° 💧 None 💨 5 mph H 77%29.88 inHg

8:00 AM

Mostly sunny

82° 💧 None 💨 10 mph H 82%29.85 inHg

2:00 PM

Light rain

83° 💧 None 💨 4 mph H 74%29.88 inHg

8:00 PM

Mostly clear night

82° 💧 None 💨 4 mph H 79%29.88 inHg

Sunday

2:00 AM

Light rain

79° 💧 None 💨 4 mph H 83%29.88 inHg

8:00 AM

Sunny

81° 💧 None 💨 1 mph H 81%29.88 inHg

2:00 PM

Mostly sunny

82° 💧 None 💨 1 mph H 78%29.91 inHg

8:00 PM

Mostly clear night

84° 💧 None 💨 4 mph H 75%29.91 inHg

Monday

2:00 AM

Light rain

82° 💧 None 💨 9 mph H 79%29.91 inHg

8:00 AM

Mostly cloudy

82° 💧 None 💨 3 mph H 79%29.91 inHg

2:00 PM

Moderate rain

82° 💧 None 💨 4 mph H 80%29.94 inHg

8:00 PM

Partly cloudy night

82° 💧 None 💨 2 mph H 79%29.94 inHg

Tuesday

2:00 AM

Partly cloudy night

83° 💧 None 💨 3 mph H 77%29.94 inHg

8:00 AM

Mostly sunny

83° 💧 None 💨 3 mph H 77%29.91 inHg

2:00 PM

Mostly cloudy

83° 💧 None 💨 3 mph H 76%29.94 inHg

8:00 PM

Partly cloudy night

84° 💧 None 💨 5 mph H 73%29.91 inHg

Wednesday

2:00 AM

Mostly clear night

85° 💧 None 💨 7 mph H 72%29.88 inHg

8:00 AM

Mostly cloudy

84° 💧 None 💨 7 mph H 74%29.88 inHg

2:00 PM

Moderate rain

82° 💧 None 💨 9 mph H 78%29.88 inHg

In Key Largo and, more broadly, across the state of Florida: This morning features a mix of sun and clouds, with temperatures starting in the low 70s. As the day progresses, expect the warmth to increase, reaching up to around 92 degrees. Light east winds will blow at about 6 mph, with occasional gusts up to 13 mph. There is a possibility of some rain in the afternoon, with total accumulation around 0.35 inches and the highest chances of rain reaching 79%. Overall, it will be a warm day with periods of sunshine and cloud cover, and a moderate chance of late-afternoon showers.

15-Day Weather Outlook for Key Largo

TomorrowTomorrow

Mostly cloudy 82°/79° 💧 None 💨 14 mph

Friday, Sep 25Fri Sep 25

Mostly sunny 86°/78° 💧 0.007 in 💨 15 mph

Saturday, Sep 26Sat Sep 26

Light rain 82°/78° 💧 0.022 in 💨 16 mph

Sunday, Sep 27Sun Sep 27

Overcast 82°/77° 💧 0.014 in 💨 13 mph

Monday, Sep 28Mon Sep 28

Overcast 83°/81° 💧 0.085 in 💨 4 mph

Tuesday, Sep 29Tue Sep 29

Light rain 82°/79° 💧 0.018 in 💨 9 mph

Wednesday, Sep 30Wed Sep 30

Light rain 82°/80° 💧 0.227 in 💨 10 mph

Thursday, Oct 1Thu Oct 1

Light rain 85°/82° 💧 0.090 in 💨 13 mph

Friday, Oct 2Fri Oct 2

Light thunderstorms 82°/79° 💧 0.290 in 💨 14 mph

Saturday, Oct 3Sat Oct 3

Light rain 83°/82° 💧 0.139 in 💨 10 mph

Sunday, Oct 4Sun Oct 4

Light rain 84°/79° 💧 0.153 in 💨 4 mph

Monday, Oct 5Mon Oct 5

Moderate rain 82°/82° 💧 0.109 in 💨 9 mph

Tuesday, Oct 6Tue Oct 6

Partly cloudy 84°/83° 💧 0.046 in 💨 5 mph

Wednesday, Oct 7Wed Oct 7

Moderate rain 85°/82° 💧 0.079 in 💨 9 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Key Largo

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Key Largo

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 3:00 AM

PM2.5 Fine particles Good 1,6µg/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 2,5µg/m³

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

O₃ Ozone Good 33,9µg/m³

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

NO₂ Nitrogen dioxide Good 0,9µg/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 Key Largo

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 7,3High 😊Good

Tomorrow UV 9,2Very high 🙂Fair

Friday UV 8,8Very high 🙂Fair

Saturday UV 9,4Very high 🙂Fair

Sunday UV 7,0High 🙂Fair

Monday UV 6,0High —Unavailable

Tuesday UV 6,0High —Unavailable

Hourly UV index today

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

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

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

Good air quality

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

Stay hydrated

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

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 Key Largo

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · KEY LARGO, FLORIDA

Tonight's Stargazing & Shooting Stars

Local night-sky conditions and meteor activity for Jasper.

42/100Best-hour score

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

☁ Cloud cover 66% Real hourly forecast for the best viewing hour.

☾ Moonlight 88% Waxing Gibbous · Moon about 14° above the horizon at the best viewing hour.

☄ Meteor activity Southern Taurids Reference ZHR 7 · Radiant 64° 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 Key Largo were last refreshed today at 2:28 AM. The current forecast period extends through 25/09/2026 at 12:00 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.