What is the high temperature today in Big Coppitt Key, FL 33040?

The National Weather Service forecast for today calls for a high near 85°F. Slight Chance Rain Showers.

Will it rain in Big Coppitt Key, FL 33040 in the next 24 hours?

The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.

What is the 10-day forecast for Big Coppitt Key, FL 33040?

The first 7 days come from the National Weather Service forecast. Days 8 to 10 (Nov 5 to Nov 7) come from the NOAA National Blend of Models, with highs of 82°F to 83°F. Model guidance this far out often changes.

What time is sunrise and sunset in Big Coppitt Key, FL 33040 today?

Sunrise is about 7:32 AM EDT and sunset is about 6:48 PM EDT (calculated for the center of the area, within a few minutes).

What is the normal October weather in Big Coppitt Key, FL 33040?

At Key West Nas, the 1991 to 2020 normal high in October is 85°F and the normal low is 78°F.

Checked Oct 29, 2026

Big Coppitt Key, FL 33040 Weather

Today: Slight Chance Rain Showers, high 85°F, low 78°F. Hourly and 10-day forecast from the National Weather Service. Times are local (EDT).

Big Coppitt Key, FL 33040 current weather

78°F

Slight Chance Rain Showers

Forecast for this hour. No recent report from a nearby station.

H 85° / L 78°

Coastal Flood Warning in effect
No rain expected in the next 12 hours

No recent station report. NWS hourly forecast updated 10/29/2026, 5:15 AM PT

1 active alert

From the National Weather Service for this forecast zone or county

State alerts

Severe1Significant threat to life or property

Coastal Flood WarningMonroe Upper Keys; Monroe Middle Keys; Monroe Lower KeysUntil Fri 10/30/2026, 5:00 AM EDT · NWS Key West FL

Hourly forecast

NWS, updated 10/29/2026, 5:15 AM PT

Now78°15%
9 AM80°15%
10 AM81°15%
11 AM82°15%
12 PM83°15%
1 PM83°15%
2 PM85°15%
3 PM85°15%
4 PM85°15%
5 PM85°15%
6 PM85°15%
7 PM83°15%
8 PM82°17%
9 PM82°17%
10 PM82°17%
11 PM81°17%
12 AM81°17%Fri
1 AM81°17%
2 AM79°17%
3 AM80°17%
4 AM79°17%
5 AM78°17%
6 AM78°17%
7 AM78°17%
8 AM78°17%
9 AM80°17%
10 AM81°17%
11 AM83°17%
12 PM84°17%
1 PM84°17%
2 PM86°17%
3 PM86°17%
4 PM86°17%
5 PM86°17%
6 PM86°17%
7 PM84°17%
8 PM83°24%
9 PM82°24%
10 PM83°24%
11 PM82°24%
12 AM82°24%Sat
1 AM81°24%
2 AM80°24%
3 AM80°24%
4 AM79°24%
5 AM79°24%
6 AM79°24%
7 AM79°24%

10-day forecast

Tap a day for details

Today10/2917% chance of precipitationLow 78°High 85°
Today: A slight chance of rain showers. Sunny, with a high near 85. Northeast wind 5 to 10 mph. Chance of precipitation is 20%.
Tonight: A slight chance of rain showers. Partly cloudy, with a low around 78. Northeast wind 5 to 10 mph. Chance of precipitation is 20%.
Slight Chance Rain Showers
Fri10/3024% chance of precipitationLow 78°High 86°
Friday: A slight chance of rain showers before 8am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 86. Northeast wind 5 to 10 mph. Chance of precipitation is 20%.
Friday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 78. Northeast wind 5 to 10 mph. Chance of precipitation is 20%.
Slight Chance Showers And Thunderstorms
Sat10/3129% chance of precipitationLow 78°High 86°
Saturday: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 86. East wind around 10 mph. Chance of precipitation is 20%.
Saturday Night: A slight chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Mostly clear, with a low around 78. Chance of precipitation is 30%.
Slight Chance Showers And Thunderstorms
Sun11/142% chance of precipitationLow 76°High 82°
Sunday: A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 82. Chance of precipitation is 40%.
Sunday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 76. Chance of precipitation is 40%.
Chance Showers And Thunderstorms
Mon11/242% chance of precipitationLow 76°High 82°
Monday: A chance of showers and thunderstorms. Mostly sunny, with a high near 82. Chance of precipitation is 40%.
Monday Night: A slight chance of showers and thunderstorms. Mostly clear, with a low around 76. Chance of precipitation is 20%.
Chance Showers And Thunderstorms
Tue11/310% chance of precipitationLow 77°High 82°
Tuesday: A slight chance of rain showers before 7am. Sunny, with a high near 82.
Tuesday Night: Mostly clear, with a low around 77.
Slight Chance Rain Showers then Sunny
Wed11/412% chance of precipitationLow 77°High 82°
Wednesday: Sunny, with a high near 82.
Wednesday Night: A slight chance of rain showers after 7pm. Mostly clear, with a low around 77.
Sunny
Model blend
Thu11/5Model blend29% chance of precipitationLow 75°High 83°
Thursday: Mostly sunny. High near 83°. Low that night near 75°.
Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.
Fri11/6Model blend17% chance of precipitationLow 74°High 82°
Friday: Mostly sunny, slight chance of rain. High near 82°. Low that night near 74°.
Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.
Sat11/7Model blend17% chance of precipitationLow 73°High 82°
Saturday: Mostly sunny. High near 82°. Low that night near 73°.
Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

Forecast for 24.588, -81.683 from the NWS KEY office, updated 10/29/2026, 5:15 AM PT · Official forecast on weather.gov

Days 8 to 10: NOAA National Blend of Models, station KEYW (Key West Intl, 5 mi), model run 10/29/2026, 4:00 AM EDT

From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.

Next 6 hours

NWS hourly forecast

Now78°Slight Chance Rain Showers15%10 mph
9 AM80°Slight Chance Rain Showers15%10 mph
10 AM81°Slight Chance Rain Showers15%10 mph
11 AM82°Slight Chance Rain Showers15%5 mph
12 PM83°Slight Chance Rain Showers15%5 mph
1 PM83°Slight Chance Rain Showers15%5 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow

Radar and satellite

National radar

NEXRAD (up to 24 hours) and GOES

Latest

Frequently asked questions

What is the high temperature today in Big Coppitt Key, FL 33040?: The National Weather Service forecast for today calls for a high near 85°F. Slight Chance Rain Showers.
Will it rain in Big Coppitt Key, FL 33040 in the next 24 hours?: The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.
What is the 10-day forecast for Big Coppitt Key, FL 33040?: The first 7 days come from the National Weather Service forecast. Days 8 to 10 (Nov 5 to Nov 7) come from the NOAA National Blend of Models, with highs of 82°F to 83°F. Model guidance this far out often changes.
What time is sunrise and sunset in Big Coppitt Key, FL 33040 today?: Sunrise is about 7:32 AM EDT and sunset is about 6:48 PM EDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Big Coppitt Key, FL 33040?: At Key West Nas, the 1991 to 2020 normal high in October is 85°F and the normal low is 78°F.

Nearby hazards

Florida hazards

Severe storm and flash flood outlooks, expected rain, river flooding and wildfires near this area

Severe storm outlook today:No thunderstorm risk area over this locationOutlook map
Excessive rainfall outlook (flash flood risk):Could not check the Weather Prediction Center outlook right now.
River gauges within 40 miles at or above flood stage: None reported
Active wildfires within 50 miles: None reported

UV and air quality forecast

EPA and AirNow

AQI forecast today (Monroe County): GoodOzone
AQI forecast tomorrow (Monroe County): GoodOzone

UV index guide · Air quality

Drought

By county

Monroe County, week of 10/20/2026

70% of the county is in moderate drought or worse.

Tides nearby

NOAA tide stations

Rockland Key, Rockland Channel Bridge0.8 mi
Boca Chica Key, Long Point1.5 mi
Boca Chica Marina1.8 mi

Beaches nearby

EPA BEACON beaches

Sun and moon

Local time, center of the area

Sunrise: 7:32 AM
Sunset: 6:48 PM
Daylight: 11 hr 17 min
Moon: Waning Gibbous 88% lit

First light (civil dawn): 7:08 AM
Last light (civil dusk): 7:12 PM
Moonrise: 9:47 PM
Moonset: 11:13 AM

Normal October weather

Climate

Normal October high 85°, low 78°, precipitation 5.71 in for the month. 1991 to 2020 normals at Key West Nas, 0 mi away.

Other places nearby

Data sources

National Weather Service APINOAA
National Blend of Models (NBM) text guidanceNOAA National Weather Service
Convective Outlooks and Storm ReportsNOAA Storm Prediction Center
Excessive Rainfall Outlook and Quantitative Precipitation ForecastsNOAA Weather Prediction Center
National Water Prediction ServiceNOAA National Weather Service
WFIGS Current Wildland Fire IncidentsNational Interagency Fire Center
UV Index Forecast (Envirofacts)U.S. Environmental Protection Agency and NOAA
AirNowU.S. Environmental Protection Agency
NWS HeatRisk (experimental)NOAA National Weather Service
U.S. Drought MonitorNational Drought Mitigation Center, USDA and NOAA
BEACON 2.0 Beach Advisory and Closing On-line NotificationU.S. Environmental Protection Agency
U.S. Climate Normals 1991-2020NOAA National Centers for Environmental Information
Tides & Currents (CO-OPS API)NOAA Center for Operational Oceanographic Products and Services
NEXRAD radar tilesIowa Environmental Mesonet, Iowa State University
GOES-East and GOES-West GeoColor imageryNOAA NESDIS Center for Satellite Applications and Research

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About this data

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