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Grant County, OK Weather Forecast
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Grant County Weather Forecast
| REST OF TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY |
 |  |  |  | |  | | | | | | |
| Chance of T-Storm | Clearing | Mostly Clear | Sunny | Clear | Chance of T-Storm | Chance of T-Storm | Mostly Sunny | Mostly Clear | Mostly Sunny | Chance of T-Storm | Chance of T-Storm |
| Lo: 70°FLo: 21°C | Hi: 99°FHi: 37°C | Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C | Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C | Lo: 70°FLo: 21°C | Hi: 99°FHi: 37°C | Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°C | Lo: 69°FLo: 21°C | Hi: 91°FHi: 33°C |
| POP: 40% | POP: 50% | POP: 50% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 138 AM CDT Sun Sep 13 2026 
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Issued: 217 AM CDT Sun Sep 13 2026
Key Messages
Updated at 205 AM CDT Sun Sep 13 2026- Hot and humid conditions through at least midweek.
- Elevated to near-critical fire weather conditions possible Monday afternoon across the west.
- Chance of showers and thunderstorms across western and northern Oklahoma by Tuesday into Wednesday.
Aviation
... (06Z TAFS) Issued at 1240 AM CDT Sun Sep 13 2026
Thunderstorm activity is trending downward, with showers and a few storms possible over the next few hours across portions of north, west, and cent...