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Dundas Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
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| Chance of T-Storm | Chance of T-Storm | Chance of Showers | Partly Cloudy | Sunny | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Partly Sunny | Chance of Showers | Chance of Showers | Chance of Showers |
| Hi: 89°FHi: 32°C | Lo: 69°FLo: 21°C | Hi: 81°FHi: 27°C | Lo: 60°FLo: 16°C | Hi: 85°FHi: 29°C | Lo: 69°FLo: 21°C | Hi: 85°FHi: 29°C Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C Lo: 65°FLo: 18°C | Hi: 80°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C Lo: 61°FLo: 16°C |
| POP: 40% | POP: 40% | POP: 50% | POP: 50% | POP: 60% | POP: 60% | POP: 40% | POP: 50% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 548 AM EDT Thu Sep 17 2026 
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Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 624 AM EDT Thu Sep 17 2026
Key Messages
1) A meandering frontal boundary will provide daily shower and storm chances into next week. Storms could be heavy at times, with the main concerns being the potential for localized flash flooding and isolated strong wind gusts.
2) Hot conditions continue today across the lowlands, albeit not as widespread as yesterday. A bit of a reprieve occurs on Friday, with a gradual warming trend for the weekend.
Discussion
... KEY MESSAGE 1...
A quasi-stationary frontal boundary continues to meand...