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Mcallen, TX 78505 Weather
Current conditions
Observed at McAllen, Miller International Airport · 48 min ago
Forecast
10-day-
Overnight
A slight chance of rain showers between 4am and 5am. Partly cloudy, with a low around 73. North northeast wind around 5 mph. Chance of precipitation is 20%.
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Thursday
A slight chance of rain showers between 10am and 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 86. Northeast wind 2 to 9 mph. Chance of precipitation is 50%.
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Thursday Night
Partly cloudy, with a low around 67. East northeast wind 2 to 9 mph.
National Weather Service forecast updated 43 min ago.
Hourly
Hourly forecast- Now75°
- 2 AM74°
- 3 AM74°12%
- 4 AM73°15%
- 5 AM73°12%
- 6 AM73°13%
- 7 AM73°
- 8 AM73°
- 9 AM74°12%
- 10 AM78°15%
- 11 AM80°19%
- 12 PM83°24%
- 1 PM84°53%
- 2 PM84°49%
- 3 PM85°51%
- 4 PM83°41%
- 5 PM83°29%
- 6 PM82°14%
- 7 PM79°
- 8 PM77°
- 9 PM76°
- 10 PM75°
- 11 PM73°
- Fri12 AM73°
10-day forecast
Details- TonightOct 21Slight Chance Rain Showers15%73°
- TodayOct 22Chance Showers And Thunderstorms53%67°86°
- FriOct 23Mostly Sunny69°88°
- SatOct 24Mostly Sunny then Slight Chance Showers And Thunderstorms16%72°88°
- SunOct 25Partly Sunny70°86°
- MonOct 26Mostly Sunny10%69°87°
- TueOct 27Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms23%69°86°
- WedOct 28Slight Chance Rain Showers17%84°
- ThuOct 29Mostly sunny67°86°
- FriOct 30Heavy showers0.81 in71°83°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
Radar
Full mapWeather news near McAllen
More weather news-
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Air quality
Air quality is satisfactory, and air pollution poses little or no risk.
Forecast
- ThuGood
- FriGood
- SatGood
Brownsville-McAllen, TX reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Almanac
MonthlyMcAllen Area, records since 1941. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
Forecasters' discussion
From the National Weather Service office in BRO, issued 18 hrs ago
Key Messages
Updated at 632 AM CDT Wed Oct 21 2026
- Showers and thunderstorms over the Gulf moving inland will bring low to moderate (20-50%) rain chances primarily east of US-281 today, and across Deep South Texas into Thursday.
- Narrow beaches around high tide are possible today.
- Overall seasonable temperatures and pleasant weather expected this weekend.
- Rain chances return early next week as a mid-level trough approaches the area.
Discussion
Issued at 1045 PM CDT Tue Oct 20 2026
Rain chances increase through Wednesday morning as deep moisture interacts with coastal troughing offshore. Isolated showers over the Gulf waters will continue to move west-southwest, bringing isolated showers to the coast. As moisture encroaches westward, isolated to scattered showers and thunderstorms are expected to move inland late Wednesday morning through Wednesday afternoon. Shower coverage should diminish as it travels inland, with moderate PoPs (40-70%) focused east of US-281, highest along the coast. Isolated showers will continue working their way inland Wednesday night into Thursday. Rainfall amounts should generally be less than a half an inch, but isolated higher amounts to 2 inches are possible under heavier showers. Rain chances diminish Friday through the weekend bar afternoon sea breeze showers, before increasing again early next week ahead of an approaching trough.
High pressure over NE Mexico will return fair weather Friday into the weekend, with isolated sea breeze showers possible in the afternoons. Temperatures remain seasonable with highs in the upper 80s and lows in the 60s to low 70s.
Long-period swell and northeast winds will keep local beaches narrow. Minor coastal flooding is possible near high tide. Current guidance keeps water levels below minor flooding thresholds, but conditions will continue to be monitored.
Aviation
(12Z TAFS) Issued at 632 AM CDT Wed Oct 21 2026
Predominately VFR conditions are forecast to continue through the period, however isolated to scattered convection this afternoon could briefly produce MVFR ceilings and visibilities. Northerly winds are forecast to shift easterly to southeasterly through the day, before becoming light and variable again overnight.
Marine
Issued at 1045 PM CDT Tue Oct 20 2026
Lingering moderate seas will result in intermittent SCEC conditions on the Gulf today. There is a medium to high (40-80%) chance of rain Wednesday and Wednesday night as a coastal trough interacts with deep moisture. Thursday and Friday, conditions improve as seas decrease to slight. Gentle to fresh onshore winds will continue through the week. This weekend, conditions may deteriorate yet again ahead of an approaching trough.
Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.