Weather World
City of Denison, TexasDenison, TX Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Denison Weather Forecast
| REST OF THIS AFTERNOON | TONIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT |
 |  | | | | | | | | | |  |
| Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Partly Cloudy |
| Hi: 99°FHi: 37°C | Lo: 79°FLo: 26°C | Hi: 100°FHi: 38°C | Lo: 79°FLo: 26°C | Hi: 100°FHi: 38°C | Lo: 79°FLo: 26°C | Hi: 100°FHi: 38°C | Lo: 79°FLo: 26°C | Hi: 100°FHi: 38°C | Lo: 79°FLo: 26°C | Hi: 100°FHi: 38°C | Lo: 79°FLo: 26°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 502 PM CDT Sat Sep 05 2026 
Denison Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Denison Weather Map
Denison Quick Facts
Denison Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 647 PM CDT Sat Sep 5 2026
Key Messages
- A Heat Advisory remains in effect for portions of North Texas, as afternoon heat index values reach upwards of 105-108.
- Above normal temperatures and dry conditions are expected across much of North and Central Texas through next week.
- Isolated thunderstorms (10-30% chance) will develop across the Brazos Valley each afternoon and evening this weekend.
Aviation
... (00Z TAFS) Issued at 645 PM CDT Sat Sep 5 2026
VFR conditions are expected through the period, with no significant aviation ...