Harlingen, TX 78552 Monthly Weather

Cameron County2:02 PM CDT26.18°N, 97.75°W
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October 2026

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197°/82°Avg 91°/71°
297°/77°0.33 inAvg 91°/70°
389°/76°1.75 inAvg 91°/70°
488°/76°Avg 90°/70°
579°/74°2.00 inAvg 90°/70°
680°/74°<0.01 inAvg 90°/69°
789°/75°Avg 90°/69°
885°/75°0.35 inAvg 90°/69°
990°/72°Avg 90°/69°
1090°/72°<0.01 inAvg 90°/68°
1188°/73°Avg 89°/68°
1288°/76°Avg 89°/68°
1392°/76°Avg 89°/68°
1494°/79°Avg 89°/67°
1590°/73°Avg 88°/67°
1689°/71°0.25 inAvg 88°/67°
1784°/59°Avg 88°/67°
1872°/57°Avg 88°/66°
1981°/57°Avg 88°/66°
2085°/65°Avg 87°/66°
2186°/66°Avg 87°/66°
22 Showers And Thunderstorms Likely 84°/67°Avg 87°/65°
23 Mostly Sunny 86°/69°Avg 86°/65°
24 Mostly Sunny then Slight Chance Rain Showers 86°/69°Avg 86°/65°
25 Partly Sunny 86°/67°Avg 86°/64°
26 Mostly Sunny 86°/67°Avg 86°/64°
27 Slight Chance Showers And Thunderstorms 85°/66°Avg 85°/64°
28 Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms 83°/65°Avg 85°/64°
29 Heavy showers 79°/71°Avg 85°/63°
30 Cloudy 81°/70°Avg 84°/63°
31 Cloudy 82°/69°Avg 84°/63°
Average high87° (normal 89°)
Average low72° (normal 68°)
Warmest / coldest97° / 57°
Precipitation4.70 in (normal 2.24 in to date)
Record high today96° (1931)
Record low today44° (1964)

Observed: Harlingen, 8 km away, records since 1912. Normals 1991–2020. Climate data from NOAA's Regional Climate Centers (ACIS); recent days are preliminary. Days ahead: the forecast.

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.