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Sweeny Lake Weather Forecast
| THIS AFTERNOON | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
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| Sunny | Mostly Cloudy | Partly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Partly Cloudy |
| Hi: 69°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 71°FHi: 22°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Hi: 60°FHi: 16°C Lo: 49°FLo: 9°C | Hi: 60°FHi: 16°C Lo: 49°FLo: 9°C | Hi: 49°FHi: 9°C Lo: 39°FLo: 4°C | Hi: 49°FHi: 9°C Lo: 39°FLo: 4°C | Hi: 49°FHi: 9°C Lo: 31°FLo: -1°C | Hi: 49°FHi: 9°C Lo: 31°FLo: -1°C | Lo: 35°FLo: 2°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 123 PM CDT Thu Oct 22 2026 
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Issued: 1230 PM CDT Thu Oct 22 2026
Key Messages
- Areas of fog, locally dense, possible again late tonight into Friday morning.
- Mild into the weekend, with high temperatures inland of Lake Michigan warming into the mid 60s to low 70s.
- Light rain chances (20 to 40%) return Saturday evening, continuing at times through Monday. Rain chances linger through much of next week.
- Cooler next week, with highs mainly in the 50s.
Discussion
... Issued at 1215 PM CDT Thu Oct 22 2026
Fog... Onshore breeze off the Bay has kept patchy fog around porti...