Houston, Texas – Triple-digit heat index values return to southeast Texas on Monday, July 21, with Houston set to see highs near 96°F and real-feel temps over 100°. The rising temperatures will pose a risk for heat-related illnesses, especially along urban corridors like I-45 and I-610, where concrete intensifies daytime heat.
According to the National Weather Service, Monday’s high near 96°F will come with calm, sunny skies and south winds of 5–10 mph. Heat index values could climb to 101°F, prompting health officials to urge residents to limit outdoor exposure between 12 p.m. and 5 p.m. Stay hydrated, wear light clothing, and avoid strenuous activity in the afternoon.
Monday night will stay warm and mostly clear with a low around 79°F. Tuesday continues the summer sizzle with a high of 95°F, followed by 97°F on Wednesday — the hottest day of the week. While no heat advisories have been issued yet, these conditions match early July trends where prolonged exposure can lead to heat exhaustion without proper precautions.
While early week remains dry, Thursday into Saturday brings slight rain chances — up to 20–60% by Saturday, July 26 — which could offer minor relief but may cause isolated lightning or slippery conditions.
Stay weather-aware and monitor local updates as Houston enters another sweltering stretch of July heat.
☀️ Five-Day Forecast for Houston (Starting Monday, July 21):
- Monday: Sunny, high 96°F, heat index 101°, south winds 5–10 mph
- Tuesday: Sunny, high 95°F, low 77°F, mostly clear
- Wednesday: Sunny, high 97°F, low 77°F, continued dry heat
- Thursday: Mostly sunny, high 96°F, 20% chance of afternoon storms
- Friday: 50% chance of showers, partly sunny, high 95°F
- Saturday: Showers and thunderstorms likely, 60% chance, high near 91°F
