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Markesan, WI Weather Forecast
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Markesan Weather Forecast
| REST OF TONIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY |
 |  |  | |  |  |  | | | | | |
| Patchy Fog | Mostly Sunny | Mostly Clear | Sunny | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Mostly Sunny | Partly Cloudy | Sunny | Mostly Clear | Sunny |
| Lo: 60°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C | Lo: 69°FLo: 21°C | Hi: 80°FHi: 27°C | Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C | Lo: 51°FLo: 11°C | Hi: 79°FHi: 26°C |
| POP: 50% | POP: 90% |
POP = Probability of Precipitation.
Weather Outlook Updated: 130 AM CDT Sun Sep 06 2026 
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Issued: 1047 PM CDT Sat Sep 5 2026
Key Messages
- Patchy dense fog possible over south central WI for early Sunday morning, especially in the WI River and Baraboo River Valleys.
- Mild and pleasant for Sunday and Labor Day.
- Warmer temps and high humidity returns for Tuesday and Wednesday along with 50-80% chances for showers and thunderstorms Tuesday night.
Aviation
... Issued 1000 PM CDT Sat Sep 5 2026
Quiet conditions expected through the TAF period for the most part though some patchy dense fog will be possible late tonight into early...