








National Weather Service Forecast for: Orlando, Florida Forecast Details
836 FXUS62 KMLB 231830 AFDMLB Area Forecast Discussion National Weather Service Melbourne FL 230 PM EDT Sun Aug 23 2026 ...New KEY MESSAGES, DISCUSSION, MARINE... .KEY MESSAGES... Issued at 230 PM EDT Sun Aug 23 2026 - Scattered to numerous showers and lightning storms are forecast this afternoon and evening, highest near and north of the I-4 corridor. Storm hazards include frequent lightning strikes, wind gusts up to 55 mph, and quick rainfall accumulations of 1-3" locally. - Below normal rain and storm chances start off the work-week as high pressure lifts northward across the Florida peninsula, with a return of near normal rain and storm chances from Wednesday onward as moisture increases. - Near to slightly above normal temperatures persist this week, but humidity will still produce peak heat indices of 100F and greater. Adequate hydration and breaks in the shade or A/C will be important for those spending extended periods of time outdoors! && .DISCUSSION... Issued at 230 PM EDT Sun Aug 23 2026 Current-Tonight...Temperatures max out in the L90s (few M90s) this afternoon with peak heat indices continuing above 100F, but remaining below Heat Advisory criteria. Residents and visitors are strongly encouraged to practice heat safety to avoid developing heat illness. Mid-level troughing across central FL will aid SCT-NMRS (40- 60%) diurnal shower/lightning storm development this afternoon and evening. Highest chances across the I-4 corridor where moisture is deepest. WRLY flow will only permit ECSB development from near the Cape southward and this feature may enhance pulse strong storms across the Space & Treasure coasts later. Drier air aloft may support local strong wind gusts in a few storms with other storm impacts remaining frequent lightning strikes, and torrential downpours leading to quick 1-3" rainfall totals for some. Minor/nuisance flooding possible locally. Storm motion is light westerly but could see occasional erratic storm movement from stronger boundary collisions. Activity will wind down through the mid-late evening across land with cloud-cover thinning overnight. Min temperatures fall into the M70s. Mon-Tue...Upper-level troughing across the eastern CONUS slowly lifts north/east, though weak troughing in the mid-levels will still provide daily enhancement to diurnal (albeit below normal) shower and lightning storm chances across ECFL. At the surface, weak surface ridging lifts north back into the central FL peninsula as the pgrad remains fairly weak. This will result in light southerly flow, allowing for earlier development and further inland movement of the ECSB than recent days. Precip chances will range b/n 20-40% on Mon and 30-50% Tue. Storm hazards continue to be frequent lightning strikes, wind gusts 45-55 mph locally, and heavy downpours. Weak storm steering flow will lead to slow and erratic storm motion, which may increase the potential for minor, localized flooding. Some storm activity may still push offshore through the late evening hours with mostly dry conditions across land overnight. Additional showers/storms possible overnight across the local Atlantic waters. Temperatures are forecast to remain slightly above normal each afternoon, with highs near and north of the I-4 corridor reaching the M90s and L90s most everywhere else. Peak heat indices are forecast to range between 102F to 107F, generally just below Heat Advisory criteria. Those spending extended periods of time outdoors will need to remain adequately hydrated and take breaks in the shade or A/C to prevent heat-related illness. Low temps continue in the M70s. Wed-Sun...Previous Extended Forecast Discussion Modified...Broad mid- level ridging across the Atlantic will extend towards and gradually across the Florida peninsula from the middle of this week into the weekend. The surface ridge axis is forecast to stay draped across the Florida peninsula, with light southerly winds prevailing through Fri, becoming more southeasterly next weekend as the ridge axis lifts slightly northward. Daily development of the east coast sea breeze is anticipated, and when combined with the moist air mass in place, will support a near normal/slightly above normal (40-70%) diurnal pattern of shower and storm development each day. Primary storm impacts remain lightning strikes, gusty winds, and heavy downpours leading to occasional minor/nuisance flooding. General model trends favor activity diminishing into the late evening and overnight hours. Temperatures will remain near normal in the L90s during the afternoon hours, falling into the M70s during the overnight hours. Peak heat indices are anticipated to remain below advisory criteria but will still exceed 100F, so heat safety will continue to be important through the remainder of the week. && .MARINE... Issued at 230 PM EDT Sun Aug 23 2026 Previous Marine Discussion Modified...Generally favorable boating conditions persist across the local waters through this week. The Atlantic surface high lifts north across the waters starting Mon, causing the southwesterly winds to become more southerly. Light offshore winds 5 to 10 knots during the overnight and morning hours increase to 10 to 15 knots and shift to out of the southeast during the afternoon as the east coast sea breeze develops each day. Seas remain generally between 1 to 3 ft, with the highest seas focused across the offshore waters. Isolated to scattered shower and lightning storm development will be forecast, with activity generally moving offshore from the peninsula each afternoon into the evening hours. Continued shower/storm development overnight across the Gulf Stream waters will be possible. Storm hazards will include frequent cloud-to-water lightning strikes, wind gusts in excess of 30 kts, heavy downpours, and locally higher seas. && .AVIATION... (18Z TAFs) Issued at 134 PM EDT Sun Aug 23 2026 ISO-SCT TS have developed INVOF the northern ECFL terminals, and SCT-NUM TS in WCFL are working eastward on the Gulf breeze. The ECSB remain pinned off the coast by offshore (WSW-SW) flow 5-10 kts, and is forecast to make only a brief inland push from KMLB- KSUA (if at all) before outflow and the WCSB overruns the coast after around 20Z. Additional TS are expected on the collision before moving offshore, though some TS may become slow/erratic/ stationary and produce longer periods of impacts. Adjusted TS and TEMPO timing earlier in AMDs and the 18Z package across the board at northern terminals. +TSRA capable of locally high gusts +35 kts again possible. Most TS/SH forecast to dissipate or move offshore after 23Z, but some activity may linger as late as 04Z. Quiet VFR overnight once convection clears. Winds become light southerly/VRB overnight and forecast to continue Monday, allowing the ECSB to develop and move inland at a more typical rate, shifting winds SSE-SE around 10 kts. Lower coverage of afternoon TS/SH forecast Monday, but another early start remains possible. && .PRELIMINARY POINT TEMPS/POPS... DAB 75 93 75 92 / 10 20 10 50 MCO 76 95 76 95 / 10 30 10 40 MLB 76 93 77 93 / 20 20 10 40 VRB 75 93 75 92 / 20 20 10 30 LEE 75 93 76 92 / 0 20 10 40 SFB 75 94 75 93 / 10 30 10 40 ORL 76 94 77 94 / 10 30 10 40 FPR 75 93 75 92 / 20 20 10 30 && .MLB WATCHES/WARNINGS/ADVISORIES... FL...None. AM...None. && $$ DISCUSSION...Sedlock AVIATION...Haley
National Weather Service Forecast for: Miami, Florida
| This Afternoon ![]() Chance T-storms |
Tonight![]() Chance T-storms then Partly Cloudy |
Monday![]() Mostly Sunny |
Monday Night ![]() Partly Cloudy |
Tuesday![]() Slight Chance T-storms |
| Hi 90 °F | Lo 83 °F | Hi 90 °F | Lo 83 °F | Hi 90 °F |
National Weather Service Forecast for: Miami, Florida Forecast Details
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