San Juan has milder winters than most of Texas
San Juan has warm winters and hot summers, with very little rain. A typical July afternoon reaches 97°, a January night drops to 50°, and snow is almost unheard of.
Getting the latest forecast from the National Weather Service…
What stands out about San Juan’s weather
Read from 30 years of NOAA records. Each one opens the full story on the Climate page.
Where today sits in San Juan’s year
Typical highs and lows month by month, from 30 years of NOAA records.
Weather talk
Road reports, first frosts and storm memories from neighbors in San Juan.
Your answer becomes a post in Town Square.
Forecast, conditions and alerts: National Weather Service. Climate: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Temperatures and rainfall come from NOAA’s gridded normals for San Juan itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Mcallen, TX (6 mi). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.