Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Melbourne, FL
Issued by NWS Melbourne, FL
055
FNUS52 KMLB 200700
FWFMLB
Fire Weather Planning Forecast for East Central Florida
National Weather Service Melbourne FL
300 AM EDT Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EDT
THIS EVENING...
.DISCUSSION...
A hot and humid August days, with scattered (50-60%) showers and
storms in the afternoons and evenings to end the week. Light
offshore flow persists, delaying the sea breeze in the afternoons.
Convection is forecast to initially be focused along the sea breeze,
then propagation will become erratic due to slow storm motions. Dry
air aloft will support strong wind gusts to 50-55 mph, in addition
to lightning strikes, small hail and locally heavy rainfall. Heat
will remain a concern, with highs in the lower to mid-90s. Peak
afternoon heat indices remain near heat advisory criteria in the
U100-L112 through Friday. Poor to fair dispersion today is forecast
to improve to fair to good Friday. No min RH concerns.
Fog potential...Widespread fog is not forecast. Localized visibility
reductions due to smoke from new or existing fires will be possible
even if fog is not forecast.
FLZ044-202000-
Northern Lake-
Including the cities of Eustis, Mount Dora, Leesburg, and Tavares
300 AM EDT Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EDT
THIS EVENING...
Today Tonight Fri
Cloud Cover Mclear Pcldy Pcldy
Precip Type tstms tstms tstms
Chance Precip (%) 60 50 60
Chance of Thunder (%) 60 50 50
Max/Min Temp 97 74 94
Min/Max RH % 51 100 54
20ft Wnd mph (AM) Lgt/Var Lgt/Var
20ft Wnd mph (PM) SW 3 Lgt/Var SW 4
Precip Amount 0.16 0.09 0.09
Precip Duration 3 1 1
Precip Begin 12 PM Continuing 10 AM
Precip End Continuing 10 PM Continuing
Mixing Hgt(ft-agl) 5200 400 6300
Transport Wnd (mph) W 6 SW 6 SW 8
Dispersion Index 40 1 60
Max LVORI 8
Remarks...None.
.Forecast for Days 3 through 5...
.SATURDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
50 percent. Southwest winds up to 5 mph.
.SUNDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
50 percent. Southwest winds up to 5 mph.
.MONDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the mid 90s. Chance of rain
50 percent. South winds up to 5 mph.
$$
FLZ144-202000-
Southern Lake-
Including the cities of Clermont, Mascotte, and Groveland
300 AM EDT Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EDT
THIS EVENING...
Today Tonight Fri
Cloud Cover Pcldy Pcldy Pcldy
Precip Type tstms tstms tstms
Chance Precip (%) 60 60 60
Chance of Thunder (%) 60 50 60
Max/Min Temp 95 75 94
Min/Max RH % 56 100 58
20ft Wnd mph (AM) Lgt/Var Lgt/Var
20ft Wnd mph (PM) W 4 Lgt/Var SW 5
Precip Amount 0.22 0.12 0.11
Precip Duration 3 1 1
Precip Begin 10 AM Continuing 2 PM
Precip End Continuing 10 PM Continuing
Mixing Hgt(ft-agl) 4800 400 5800
Transport Wnd (mph) W 5 SW 5 SW 8
Dispersion Index 33 2 40
Max LVORI 8
Remarks...None.
.Forecast for Days 3 through 5...
.SATURDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
50 percent. Southwest winds 5 to 10 mph.
.SUNDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
50 percent. Southwest winds around 5 mph.
.MONDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
50 percent. South winds up to 5 mph.
$$
FLZ041-202000-
Inland Volusia-
Including the cities of Debary, Deland, and Deltona
300 AM EDT Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EDT
THIS EVENING...
Today Tonight Fri
Cloud Cover Mclear Pcldy Mclear
Precip Type tstms tstms tstms
Chance Precip (%) 60 60 60
Chance of Thunder (%) 60 50 50
Max/Min Temp 96 74 95
Min/Max RH % 53 100 54
20ft Wnd mph (AM) Lgt/Var Lgt/Var
20ft Wnd mph (PM) S 3 Lgt/Var SW 4
Precip Amount 0.17 0.09 0.12
Precip Duration 3 1 1
Precip Begin 12 PM Continuing 2 PM
Precip End Continuing 9 PM Continuing
Mixing Hgt(ft-agl) 5200 400 6400
Transport Wnd (mph) SW 6 SW 6 SW 8
Dispersion Index 43 2 60
Max LVORI 9
Remarks...None.
.Forecast for Days 3 through 5...
.SATURDAY...Partly cloudy. Showers and thunderstorms likely. Lows
in the mid 70s. Highs in the lower 90s. Chance of rain
60 percent. Southwest winds around 5 mph.
.SUNDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
50 percent. Southwest winds around 5 mph.
.MONDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
50 percent. Southwest winds up to 5 mph.
$$
FLZ141-202000-
Coastal Volusia-
Including the cities of Daytona Beach, New Smyrna Beach,
and Ormond Beach
300 AM EDT Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EDT
THIS EVENING...
Today Tonight Fri
Cloud Cover Mclear Pcldy Mclear
Precip Type tstms tstms tstms
Chance Precip (%) 60 50 50
Chance of Thunder (%) 50 50 50
Max/Min Temp 94 75 92
Min/Max RH % 58 100 62
20ft Wnd mph (AM) Lgt/Var Lgt/Var
20ft Wnd mph (PM) SE 6 S 4 SE 6
Precip Amount 0.09 0.05 0.16
Precip Duration 1 1 1
Precip Begin 1 PM Continuing 2 PM
Precip End Continuing 9 PM Continuing
Mixing Hgt(ft-agl) 4400 400 5600
Transport Wnd (mph) SW 6 W 7 S 7
Dispersion Index 34 3 49
Max LVORI 8
Remarks...None.
.Forecast for Days 3 through 5...
.SATURDAY...Partly cloudy. Showers and thunderstorms likely. Lows
in the mid 70s. Highs in the lower 90s. Chance of rain
60 percent. Southwest winds around 5 mph.
.SUNDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs around 90. Chance of rain 50 percent.
Southwest winds around 5 mph.
.MONDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs around 90. Chance of rain 50 percent.
Southwest winds around 5 mph.
$$
FLZ046-202000-
Seminole-
Including the cities of Altamonte Springs, Casselberry, Oviedo,
Sanford, and Winter Springs
300 AM EDT Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EDT
THIS EVENING...
Today Tonight Fri
Cloud Cover Mclear Pcldy Mclear
Precip Type tstms tstms tstms
Chance Precip (%) 60 60 60
Chance of Thunder (%) 60 60 60
Max/Min Temp 95 76 93
Min/Max RH % 54 100 58
20ft Wnd mph (AM) Lgt/Var Lgt/Var
20ft Wnd mph (PM) SW 3 S 3 SW 5
Precip Amount 0.21 0.11 0.14
Precip Duration 3 1 2
Precip Begin 12 PM Continuing 2 PM
Precip End Continuing 10 PM Continuing
Mixing Hgt(ft-agl) 4900 400 5800
Transport Wnd (mph) SW 6 W 6 SW 8
Dispersion Index 33 2 57
Max LVORI 8
Remarks...None.
.Forecast for Days 3 through 5...
.SATURDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the upper 70s. Highs in the lower 90s. Chance of rain
50 percent. Southwest winds 5 to 10 mph.
.SUNDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
50 percent. Southwest winds around 5 mph.
.MONDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
50 percent. Southwest winds around 5 mph.
$$
FLZ045-202000-
Orange-
Including the cities of Apopka, Maitland, Orlando, Winter Park,
and Union Park
300 AM EDT Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EDT
THIS EVENING...
Today Tonight Fri
Cloud Cover Mclear Pcldy Pcldy
Precip Type tstms tstms tstms
Chance Precip (%) 60 60 60
Chance of Thunder (%) 60 50 60
Max/Min Temp 96 76 94
Min/Max RH % 52 100 54
20ft Wnd mph (AM) Lgt/Var Lgt/Var
20ft Wnd mph (PM) SW 4 S 3 SW 5
Precip Amount 0.19 0.11 0.13
Precip Duration 3 1 1
Precip Begin 12 PM Continuing 2 PM
Precip End Continuing 11 PM Continuing
Mixing Hgt(ft-agl) 5400 400 6100
Transport Wnd (mph) SW 6 S 5 SW 8
Dispersion Index 40 2 54
Max LVORI 8
Remarks...None.
.Forecast for Days 3 through 5...
.SATURDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
50 percent. Southwest winds 5 to 10 mph.
.SUNDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
50 percent. Southwest winds around 5 mph.
.MONDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
50 percent. Southwest winds around 5 mph.
$$
FLZ053-202000-
Osceola-
Including the cities of Celebration, Kissimmee, and Saint Cloud
300 AM EDT Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EDT
THIS EVENING...
Today Tonight Fri
Cloud Cover Mclear Pcldy Pcldy
Precip Type tstms tstms tstms
Chance Precip (%) 60 60 60
Chance of Thunder (%) 60 50 50
Max/Min Temp 95 73 94
Min/Max RH % 53 100 56
20ft Wnd mph (AM) Lgt/Var Lgt/Var
20ft Wnd mph (PM) SW 3 Lgt/Var SW 5
Precip Amount 0.15 0.12 0.11
Precip Duration 2 1 1
Precip Begin 12 PM Continuing 2 PM
Precip End Continuing 12 AM Continuing
Mixing Hgt(ft-agl) 5400 300 5700
Transport Wnd (mph) SW 5 SW 5 SW 7
Dispersion Index 34 2 49
Max LVORI 10
Remarks...None.
.Forecast for Days 3 through 5...
.SATURDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
50 percent. Southwest winds around 5 mph.
.SUNDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
50 percent. Southwest winds around 5 mph.
.MONDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
50 percent. South winds up to 5 mph.
$$
FLZ247-202000-
Inland Northern Brevard-
Including the city of Canaveral Groves
300 AM EDT Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EDT
THIS EVENING...
Today Tonight Fri
Cloud Cover Mclear Pcldy Mclear
Precip Type tstms tstms tstms
Chance Precip (%) 60 50 60
Chance of Thunder (%) 60 50 60
Max/Min Temp 95 75 94
Min/Max RH % 58 100 60
20ft Wnd mph (AM) Lgt/Var Lgt/Var
20ft Wnd mph (PM) S 4 S 3 S 4
Precip Amount 0.25 0.14 0.17
Precip Duration 3 1 2
Precip Begin 1 PM Continuing 2 PM
Precip End Continuing 12 AM Continuing
Mixing Hgt(ft-agl) 4900 400 6000
Transport Wnd (mph) SW 5 SE 6 SW 7
Dispersion Index 32 2 50
Max LVORI 8
Remarks...None.
.Forecast for Days 3 through 5...
.SATURDAY...Partly cloudy. Showers and thunderstorms likely. Lows
in the mid 70s. Highs in the mid 90s. Chance of rain 60 percent.
Southwest winds around 5 mph.
.SUNDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
50 percent. Southwest winds around 5 mph.
.MONDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
50 percent. Southwest winds around 5 mph.
$$
FLZ347-202000-
Mainland Northern Brevard-
Including the cities of Titusville, Port Saint John, and Mims
300 AM EDT Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EDT
THIS EVENING...
Today Tonight Fri
Cloud Cover Mclear Pcldy Mclear
Precip Type tstms tstms tstms
Chance Precip (%) 60 50 60
Chance of Thunder (%) 60 50 60
Max/Min Temp 96 76 93
Min/Max RH % 58 100 60
20ft Wnd mph (AM) Lgt/Var Lgt/Var
20ft Wnd mph (PM) SE 4 S 4 S 5
Precip Amount 0.18 0.14 0.15
Precip Duration 3 1 1
Precip Begin 1 PM Continuing 2 PM
Precip End Continuing 12 AM Continuing
Mixing Hgt(ft-agl) 4700 400 5800
Transport Wnd (mph) SW 5 SW 6 SW 7
Dispersion Index 30 2 48
Max LVORI 8
Remarks...None.
.Forecast for Days 3 through 5...
.SATURDAY...Partly cloudy. Showers and thunderstorms likely. Lows
in the mid 70s. Highs in the lower 90s. Chance of rain
60 percent. Southwest winds around 5 mph.
.SUNDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
50 percent. Southwest winds around 5 mph.
.MONDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
50 percent. Southwest winds around 5 mph.
$$
FLZ447-202000-
Northern Brevard Barrier Islands-
Including the cities of Merritt Island Wildlife Refuge and
Playalinda Beach
300 AM EDT Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EDT
THIS EVENING...
Today Tonight Fri
Cloud Cover Mclear Pcldy Mclear
Precip Type tstms tstms tstms
Chance Precip (%) 60 40 50
Chance of Thunder (%) 50 40 50
Max/Min Temp 94 76 93
Min/Max RH % 56 100 58
20ft Wnd mph (AM) Lgt/Var Lgt/Var
20ft Wnd mph (PM) SE 5 S 5 SE 6
Precip Amount 0.06 0.05 0.09
Precip Duration 1 1 1
Precip Begin 1 PM Continuing 2 PM
Precip End Continuing 12 AM Continuing
Mixing Hgt(ft-agl) 4100 400 5100
Transport Wnd (mph) S 6 SW 7 S 7
Dispersion Index 27 3 44
Max LVORI 8
Remarks...None.
.Forecast for Days 3 through 5...
.SATURDAY...Partly cloudy. Showers and thunderstorms likely. Lows
in the upper 70s. Highs in the lower 90s. Chance of rain
60 percent. Southwest winds around 5 mph.
.SUNDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the upper 70s. Highs in the lower 90s. Chance of rain
50 percent. Southwest winds around 5 mph.
.MONDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the upper 70s. Highs around 90. Chance of rain
50 percent. Southwest winds around 5 mph.
$$
FLZ547-202000-
Inland Southern Brevard-
Including the cities of Palm Bay west of I 95 and Viera West
300 AM EDT Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EDT
THIS EVENING...
Today Tonight Fri
Cloud Cover Mclear Pcldy Pcldy
Precip Type tstms tstms tstms
Chance Precip (%) 60 50 60
Chance of Thunder (%) 60 50 50
Max/Min Temp 95 75 94
Min/Max RH % 56 100 56
20ft Wnd mph (AM) Lgt/Var Lgt/Var
20ft Wnd mph (PM) S 4 S 4 S 6
Precip Amount 0.09 0.10 0.10
Precip Duration 1 1 1
Precip Begin 1 PM Continuing 2 PM
Precip End Continuing 12 AM Continuing
Mixing Hgt(ft-agl) 4700 400 5800
Transport Wnd (mph) SW 5 SE 6 SW 7
Dispersion Index 32 2 48
Max LVORI 8
Remarks...None.
.Forecast for Days 3 through 5...
.SATURDAY...Partly cloudy. Showers and thunderstorms likely. Lows
in the mid 70s. Highs in the mid 90s. Chance of rain 60 percent.
Southwest winds around 5 mph.
.SUNDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
50 percent. Southwest winds around 5 mph.
.MONDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
50 percent. South winds around 5 mph.
$$
FLZ647-202000-
Mainland Southern Brevard-
Including the cities of Cocoa, Rockledge, and Melbourne
300 AM EDT Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EDT
THIS EVENING...
Today Tonight Fri
Cloud Cover Mclear Pcldy Pcldy
Precip Type tstms tstms tstms
Chance Precip (%) 50 40 60
Chance of Thunder (%) 50 40 50
Max/Min Temp 94 75 94
Min/Max RH % 56 100 58
20ft Wnd mph (AM) Lgt/Var SW 3
20ft Wnd mph (PM) SE 6 SE 5 SE 7
Precip Amount 0.04 0.05 0.09
Precip Duration 1 1 1
Precip Begin 1 PM Continuing 2 PM
Precip End Continuing 12 AM Continuing
Mixing Hgt(ft-agl) 4300 400 5400
Transport Wnd (mph) S 7 SW 7 S 7
Dispersion Index 31 2 47
Max LVORI 7
Remarks...None.
.Forecast for Days 3 through 5...
.SATURDAY...Partly cloudy. Showers and thunderstorms likely. Lows
in the mid 70s. Highs in the lower 90s. Chance of rain
60 percent. Southwest winds 5 to 10 mph.
.SUNDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
50 percent. Southwest winds around 5 mph.
.MONDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
50 percent. Southwest winds around 5 mph.
$$
FLZ747-202000-
Southern Brevard Barrier Islands-
Including the cities of Cocoa Beach, Satellite Beach,
and Melbourne Beach
300 AM EDT Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EDT
THIS EVENING...
Today Tonight Fri
Cloud Cover Mclear Pcldy Mclear
Precip Type tstms tstms tstms
Chance Precip (%) 50 30 50
Chance of Thunder (%) 50 30 50
Max/Min Temp 92 78 92
Min/Max RH % 58 100 60
20ft Wnd mph (AM) SW 3 SW 4
20ft Wnd mph (PM) SE 7 S 7 SE 8
Precip Amount 0.02 0.02 0.08
Precip Duration 1 1 1
Precip Begin 1 PM Continuing 2 PM
Precip End Continuing 12 AM Continuing
Mixing Hgt(ft-agl) 4000 400 4600
Transport Wnd (mph) SE 6 SW 7 S 8
Dispersion Index 22 3 38
Max LVORI 6
Remarks...None.
.Forecast for Days 3 through 5...
.SATURDAY...Partly cloudy. Showers and thunderstorms likely. Lows
in the upper 70s. Highs around 90. Chance of rain 60 percent.
Southwest winds around 10 mph.
.SUNDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the upper 70s. Highs around 90. Chance of rain
50 percent. Southwest winds around 5 mph.
.MONDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the upper 70s. Highs in the upper 80s. Chance of rain
50 percent. Southwest winds around 5 mph.
$$
FLZ254-202000-
Inland Indian River-
Including the city of Fellsmere
300 AM EDT Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EDT
THIS EVENING...
Today Tonight Fri
Cloud Cover Mclear Pcldy Pcldy
Precip Type tstms tstms tstms
Chance Precip (%) 60 60 60
Chance of Thunder (%) 50 60 60
Max/Min Temp 94 74 93
Min/Max RH % 58 100 58
20ft Wnd mph (AM) Lgt/Var Lgt/Var
20ft Wnd mph (PM) S 4 SE 4 SW 5
Precip Amount 0.12 0.09 0.08
Precip Duration 1 1 1
Precip Begin 1 PM Continuing 2 PM
Precip End Continuing 11 PM Continuing
Mixing Hgt(ft-agl) 4600 300 5800
Transport Wnd (mph) SW 5 SE 6 SW 7
Dispersion Index 32 2 48
Max LVORI 9
Remarks...None.
.Forecast for Days 3 through 5...
.SATURDAY...Partly cloudy. Showers and thunderstorms likely. Lows
in the mid 70s. Highs in the lower 90s. Chance of rain
60 percent. Southwest winds around 5 mph.
.SUNDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
50 percent. Southwest winds around 5 mph.
.MONDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
40 percent. South winds around 5 mph.
$$
FLZ154-202000-
Coastal Indian River-
Including the cities of Sebastian and Vero Beach
300 AM EDT Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EDT
THIS EVENING...
Today Tonight Fri
Cloud Cover Mclear Pcldy Pcldy
Precip Type tstms tstms tstms
Chance Precip (%) 40 50 60
Chance of Thunder (%) 40 50 60
Max/Min Temp 93 75 93
Min/Max RH % 58 100 58
20ft Wnd mph (AM) Lgt/Var SW 3
20ft Wnd mph (PM) SE 6 S 5 S 7
Precip Amount 0.03 0.03 0.09
Precip Duration 1 1 2
Precip Begin 1 PM Continuing 2 PM
Precip End Continuing 11 PM Continuing
Mixing Hgt(ft-agl) 4200 400 5400
Transport Wnd (mph) SE 7 SW 6 SW 7
Dispersion Index 29 2 45
Max LVORI 6
Remarks...None.
.Forecast for Days 3 through 5...
.SATURDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
50 percent. Southwest winds around 5 mph.
.SUNDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
50 percent. Southwest winds around 5 mph.
.MONDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
40 percent. Southwest winds around 5 mph.
$$
FLZ259-202000-
Inland Saint Lucie-
Including the cities of Tradition and Saint Lucie West
300 AM EDT Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EDT
THIS EVENING...
Today Tonight Fri
Cloud Cover Mclear Pcldy Mclear
Precip Type tstms tstms tstms
Chance Precip (%) 50 50 60
Chance of Thunder (%) 50 50 50
Max/Min Temp 94 74 93
Min/Max RH % 56 100 56
20ft Wnd mph (AM) Lgt/Var Lgt/Var
20ft Wnd mph (PM) S 4 S 3 SW 5
Precip Amount 0.07 0.05 0.07
Precip Duration 1 1 1
Precip Begin 1 PM Continuing 1 PM
Precip End Continuing 11 PM Continuing
Mixing Hgt(ft-agl) 4400 400 5800
Transport Wnd (mph) SW 5 S 6 SW 7
Dispersion Index 28 2 47
Max LVORI 8
Remarks...None.
.Forecast for Days 3 through 5...
.SATURDAY...Partly cloudy. Showers and thunderstorms likely. Lows
in the mid 70s. Highs in the lower 90s. Chance of rain
60 percent. Southwest winds around 5 mph.
.SUNDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
50 percent. Southwest winds around 5 mph.
.MONDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
50 percent. South winds around 5 mph.
$$
FLZ159-202000-
Coastal Saint Lucie-
Including the cities of Fort Pierce and Port Saint Lucie
300 AM EDT Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EDT
THIS EVENING...
Today Tonight Fri
Cloud Cover Mclear Pcldy Pcldy
Precip Type tstms tstms tstms
Chance Precip (%) 50 40 60
Chance of Thunder (%) 50 40 60
Max/Min Temp 93 75 92
Min/Max RH % 60 100 60
20ft Wnd mph (AM) Lgt/Var SW 4
20ft Wnd mph (PM) SE 6 S 4 S 6
Precip Amount 0.07 0.04 0.07
Precip Duration 1 1 1
Precip Begin 1 PM Continuing 1 PM
Precip End Continuing 10 PM Continuing
Mixing Hgt(ft-agl) 4000 400 5200
Transport Wnd (mph) S 5 SW 7 SW 8
Dispersion Index 25 2 45
Max LVORI 7
Remarks...None.
.Forecast for Days 3 through 5...
.SATURDAY...Partly cloudy. Showers and thunderstorms likely. Lows
in the mid 70s. Highs in the lower 90s. Chance of rain
60 percent. Southwest winds around 5 mph.
.SUNDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
50 percent. Southwest winds around 5 mph.
.MONDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs around 90. Chance of rain 40 percent.
South winds around 5 mph.
$$
FLZ264-202000-
Inland Martin-
Including the city of Indiantown
300 AM EDT Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EDT
THIS EVENING...
Today Tonight Fri
Cloud Cover Mclear Pcldy Mclear
Precip Type tstms tstms tstms
Chance Precip (%) 50 40 50
Chance of Thunder (%) 50 40 50
Max/Min Temp 95 75 94
Min/Max RH % 56 100 58
20ft Wnd mph (AM) Lgt/Var SW 3
20ft Wnd mph (PM) S 4 S 4 SW 5
Precip Amount 0.06 0.04 0.09
Precip Duration 1 1 1
Precip Begin 1 PM Continuing 1 PM
Precip End Continuing 11 PM Continuing
Mixing Hgt(ft-agl) 4500 400 5500
Transport Wnd (mph) SW 5 SW 7 SW 7
Dispersion Index 27 2 47
Max LVORI 8
Remarks...None.
.Forecast for Days 3 through 5...
.SATURDAY...Partly cloudy. Showers and thunderstorms likely. Lows
in the mid 70s. Highs in the lower 90s. Chance of rain
60 percent. Southwest winds around 5 mph.
.SUNDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the mid 90s. Chance of rain
50 percent. Southwest winds around 5 mph.
.MONDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
50 percent. South winds around 5 mph.
$$
FLZ164-202000-
Coastal Martin-
Including the cities of Hobe Sound, Jensen Beach, and Stuart
300 AM EDT Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EDT
THIS EVENING...
Today Tonight Fri
Cloud Cover Mclear Pcldy Pcldy
Precip Type tstms tstms tstms
Chance Precip (%) 50 40 60
Chance of Thunder (%) 50 40 60
Max/Min Temp 94 75 93
Min/Max RH % 56 100 56
20ft Wnd mph (AM) Lgt/Var SW 4
20ft Wnd mph (PM) SE 5 S 4 S 6
Precip Amount 0.05 0.03 0.13
Precip Duration 1 1 1
Precip Begin 1 PM Continuing 1 PM
Precip End Continuing 9 PM Continuing
Mixing Hgt(ft-agl) 4200 400 5200
Transport Wnd (mph) SE 6 SW 7 SW 7
Dispersion Index 24 3 44
Max LVORI 7
Remarks...None.
.Forecast for Days 3 through 5...
.SATURDAY...Partly cloudy. Showers and thunderstorms likely. Lows
in the mid 70s. Highs in the lower 90s. Chance of rain
60 percent. Southwest winds around 5 mph.
.SUNDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
50 percent. Southwest winds around 5 mph.
.MONDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the mid 70s. Highs in the lower 90s. Chance of rain
50 percent. South winds around 5 mph.
$$
FLZ058-202000-
Okeechobee-
Including the cities of Basinger, Fort Drum, and Okeechobee
300 AM EDT Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EDT
THIS EVENING...
Today Tonight Fri
Cloud Cover Mclear Pcldy Mclear
Precip Type tstms tstms tstms
Chance Precip (%) 50 60 50
Chance of Thunder (%) 50 60 50
Max/Min Temp 94 73 93
Min/Max RH % 54 100 58
20ft Wnd mph (AM) Lgt/Var Lgt/Var
20ft Wnd mph (PM) SW 3 Lgt/Var SW 5
Precip Amount 0.11 0.12 0.06
Precip Duration 1 1 1
Precip Begin 12 PM Continuing 2 PM
Precip End Continuing 11 PM Continuing
Mixing Hgt(ft-agl) 4700 400 5500
Transport Wnd (mph) SW 5 SW 5 SW 7
Dispersion Index 26 2 46
Max LVORI 10
Remarks...None.
.Forecast for Days 3 through 5...
.SATURDAY...Partly cloudy. Showers and thunderstorms likely. Lows
in the lower 70s. Highs in the lower 90s. Chance of rain
60 percent. Southwest winds up to 5 mph.
.SUNDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the lower 70s. Highs in the lower 90s. Chance of rain
50 percent. Southwest winds up to 5 mph.
.MONDAY...Partly cloudy. A chance of showers and thunderstorms.
Lows in the lower 70s. Highs in the lower 90s. Chance of rain
50 percent. Southwest winds up to 5 mph.
$$