Weather World
Thornton, AR Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Thornton Weather Forecast
| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SUNDAY | MONDAY | MONDAY NIGHT | TUESDAY |
 |  | |  | | | | |  |  | |
| Sunny | Chance of Rain | Sunny | Mostly Clear | Sunny | Mostly Clear | Mostly Clear | Mostly Clear | Chance of T-Storm | Chance of Showers | Chance of T-Storm |
| Hi: 99°FHi: 37°C | Lo: 71°FLo: 22°C | Hi: 99°FHi: 37°C | Lo: 70°FLo: 21°C | Hi: 99°FHi: 37°C | Hi: 99°FHi: 37°C Lo: 70°FLo: 21°C | Hi: 99°FHi: 37°C Lo: 70°FLo: 21°C | Hi: 99°FHi: 37°C Lo: 70°FLo: 21°C | Hi: 99°FHi: 37°C | Lo: 69°FLo: 21°C | Hi: 95°FHi: 35°C |
| POP: 20% | POP: 20% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 850 AM CDT Wed Sep 16 2026 
Thornton Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Thornton Weather Map
Thornton Quick Facts
Thornton Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 617 AM CDT Wed Sep 16 2026
Key Messages
Issued at 233 AM CDT Wed Sep 16 2026- A Heat Advisory remains in effect for most of east, central and southern Arkansas on Wednesday
- Isolated showers & t`storms possible in northwest, west, & southern Arkansas on Wednesday
- Dry conditions build in late into the week through the weekend
Discussion
... Issued at 233 AM CDT Wed Sep 16 2026
Ridging pattern continues to keep day to day conditions very similar. Near record highs and humid conditions will keep afternoon heat index values above 1...