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Markham Lake Weather Forecast
| THIS AFTERNOON | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY | MONDAY NIGHT |
 |  | |  |  | | | | |  |  | |
| Partly Cloudy | Mostly Cloudy | Clearing | Mostly Clear | Sunny | Mostly Clear | Sunny | Mostly Clear | Mostly Sunny | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm |
| Hi: 75°FHi: 24°C | Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 81°FHi: 27°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C | Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C | Lo: 50°FLo: 10°C |
| POP: 40% | POP: 40% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 317 PM MDT Wed Sep 02 2026 
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Issued: 430 PM MDT Wed Sep 2 2026
Key Messages
- Trending drier today with widespread near critical fire weather across much of the area this afternoon with lower humidity as low as 15 to 25 percent and gusty southwest winds up to 30 to 45 mph.
- Thursday still looks to be the day of most concern with the lowest humidity as low as 10 to 15 percent. The fire weather watch has been upgraded as a result to red flag warnings. Further near critical fire weather is possible on Friday into Saturday.
- Monsoonal moisture returns later this wee...