Alton, TX Weather

Hidalgo County3:37 PM CDT26.29°N, 98.31°WElevation 161 ft

Current conditions

Clear
90°
Clear
Feels like 90°
High 90°·Low 68°
WindN 8 mph
Humidity38%
Dew point61°
Pressure30.10 inHg
Visibility10 mi
Cloud cover23%
UV index6 High
Sunrise7:36 AM
Sunset7:02 PM

Observed at McAllen, Miller International Airport · 1 hr ago

Forecast

10-day

  • This Afternoon

    Sunny, with a high near 90. Northeast wind around 9 mph.

  • Tonight

    Clear, with a low around 68. North northeast wind 2 to 9 mph.

  • Wednesday

    A slight chance of rain showers after 4pm. Sunny. High near 89, with temperatures falling to around 85 in the afternoon. North wind 5 to 8 mph. Chance of precipitation is 20%.

National Weather Service forecast updated 3 hrs ago.

Hourly

Hourly forecast
  1. Now Sunny 88°
  2. 4 PM Sunny 88°
  3. 5 PM Sunny 89°
  4. 6 PM Mostly Clear 85°
  5. 7 PM Clear 83°
  6. 8 PM Clear 81°
  7. 9 PM Clear 76°
  8. 10 PM Clear 75°
  9. 11 PM Clear 74°
  10. Wed12 AM Clear 73°
  11. 1 AM Clear 72°
  12. 2 AM Clear 71°
  13. 3 AM Clear 70°
  14. 4 AM Clear 70°
  15. 5 AM Clear 69°
  16. 6 AM Sunny 68°
  17. 7 AM Sunny 68°
  18. 8 AM Sunny 68°
  19. 9 AM Sunny 71°
  20. 10 AM Sunny 76°
  21. 11 AM Sunny 79°
  22. 12 PM Sunny 82°
  23. 1 PM Mostly Sunny 85°
  24. 2 PM Mostly Sunny 86°

10-day forecast

Details
  1. TodayOct 20 Sunny Sunny68°90°
  2. WedOct 21 Sunny then Slight Chance Rain Showers Sunny then Slight Chance Rain Showers23%71°89°
  3. ThuOct 22 Mostly Sunny Mostly Sunny14%66°89°
  4. FriOct 23 Sunny Sunny67°89°
  5. SatOct 24 Sunny Sunny70°90°
  6. SunOct 25 Partly Sunny Partly Sunny10%70°90°
  7. MonOct 26 Mostly Sunny then Chance Rain Showers Mostly Sunny then Chance Rain Showers35%68°87°
  8. TueOct 27 Heavy rain Heavy rain0.75 in70°74°
  9. WedOct 28 Cloudy Cloudy0.04 in65°78°
  10. ThuOct 29 Cloudy Cloudy65°80°

Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.

Radar

Full map
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Weather news in Texas

More weather news

Air quality

38
Good
Ozone

Air quality is satisfactory, and air pollution poses little or no risk.

Forecast

  • TueGood
  • WedGood
  • ThuGood

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

Sunrise 7:36 AM
Sunset 7:02 PM
Daylight 11 h 26 min (−1 min 27 s tomorrow)
Waxing Gibbous · 71% lit
Moonrise 3:42 PM Moonset 2:17 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low89° / 68°
Record high100° (2016)
Record low44° (1989)
Wettest2.13 in (2002)
Yesterday85° / 65°
Month to date3.65 in (normal 1.38 in)

McAllen 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 8 hrs ago

Key Messages

Updated at 634 AM CDT Tue Oct 20 2026

- Overall seasonable temperatures and pleasant weather expected.

- Narrow beaches around high tide are expected through Wednesday.

- Showers and thunderstorms are possible Wednesday east of US-281.

Discussion

Issued at 1045 PM CDT Mon Oct 19 2026

Ridging over NE Mexico will slowly shift east towards the Gulf, keeping mostly fair weather for much of the period. High temperatures climb to the upper 80s-low 90s by Wednesday, with a Minor (level 1 of 4) risk of heat related illness into the weekend.

Mostly dry conditions should prevail through this afternoon. A plume of moisture associated with a developing coastal trough will bring deeper moisture westward beginning tonight. Rain chances increase along the coast overnight, spreading westward through Wednesday. Chances for showers and thunderstorms peak Wednesday afternoon, with moderate PoPs (40-60%) east of US-281, highest near the coast. Drier conditions are expected Thursday through Sunday as high pressure dominates. Low rain chances return early next week.

Long-period swell and northeast winds will keep local beaches narrow. Minor coastal flooding is possible near high through the middle of the week. Current guidance keeps water levels below minor flooding threshold, but conditions will continue to be monitored.

Aviation

(12Z TAFS) Issued at 634 AM CDT Tue Oct 20 2026

VFR conditions are forecast to continue through the period. Generally light to moderate northeasterly winds are forecast through the afternoon, with winds becoming light and variable this evening.

Marine

Issued at 1045 PM CDT Mon Oct 19 2026

Adverse conditions are expected through midweek due to moderate seas and northeast to onshore winds, resulting in intermittent SCEC conditions across the Laguna Madre and Gulf waters. Rain chances increase Tuesday night into Wednesday as a coastal trough brings additional moisture to the reaching, with PoPs reaching 70-80% over the Gulf waters Wednesday. Thursday and Friday, conditions improve as seas decrease to slight and winds decrease to a gentle breeze.

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.