| NWS Forecast for: Collin County Issued by: National Weather Service Dallas/Fort Worth, TX Last Update: 609 PM CDT Wed Jun 24 2026 |  |
| Tonight: Mostly clear. Lows in the mid 70s. South winds 5 to 10 mph. Thursday: Sunny. Highs in the lower 90s. South winds 5 to 10 mph, increasing to 10 to 15 mph in the afternoon. Thursday Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s. South winds 10 to 15 mph. Friday: Mostly sunny. Humid with highs in the mid 90s. South winds 10 to 15 mph, increasing to 15 to 20 mph in the afternoon. Friday Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 70s. South winds 10 to 15 mph. Saturday: Sunny. Highs in the mid 90s. Saturday Night: Clear. Lows in the mid 70s. Sunday: Sunny. Highs in the mid 90s. Heat index values up to 105. Sunday Night: Clear. Lows in the mid 70s. Monday: Sunny. Highs in the upper 90s. Heat index values up to 105. Monday Night: Mostly clear. Lows in the mid 70s. Tuesday: Sunny, hot with highs in the upper 90s. Tuesday Night: Mostly clear. Lows in the upper 70s. Wednesday: Sunny. Highs in the upper 90s. Heat index values up to 105. | |
| Zone Forecast: Collin County | |
Visit your local NWS office at: https://www.weather.gov/fwd |