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Lamar, OK Weather Forecast
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Lamar Weather Forecast
| THIS AFTERNOON | TONIGHT | LABOR DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
 |  | | |  | | |  | |  | | |
| Chance of T-Storm | Mostly Clear | Chance of T-Storm | Mostly Clear | Sunny | Clear | Sunny | Chance of Showers | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Mostly Clear |
| Hi: 101°FHi: 38°C | Lo: 79°FLo: 26°C | Hi: 101°FHi: 38°C | Lo: 79°FLo: 26°C | Hi: 102°FHi: 39°C | Lo: 79°FLo: 26°C | Hi: 100°FHi: 38°C | Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C | Lo: 71°FLo: 22°C | Hi: 99°FHi: 37°C | Lo: 75°FLo: 24°C |
| POP: 20% | POP: 20% | POP: 20% | POP: 50% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 129 PM CDT Sun Sep 06 2026 
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Issued: 1245 PM CDT Sun Sep 6 2026
Key Messages
Updated at 1237 PM CDT Sun Sep 6 2026- Ongoing heatwave continues through at least midweek with triple digit heat indices and lows well above normal.
- Very low chances for rain/storms this afternoon across northwestern and eastern parts of the forecast area this afternoon to southeast Oklahoma on Monday.
- Possible pattern shift by late week with less dangerous heating and increasing rain chances late Wednesday into Thursday.
Aviation
... (18Z TAFS) Issued at 1224 PM CDT Sun Sep 6 2026
VFR ...