Mason, IL Weather Forecast

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Mason, IL Weather Forecast

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Mason IL weather  - Clear - 68°F
Clear
68°F
Updated 3:28 pm
Feels Like 64°F
Humidity 39%
Wind ENE 7 mph
Barometer  30.28 in
Dew Point 42°F
Mason IL weather  - Clear - 20°C
Clear
20°C
Updated 3:28 pm
Feels Like 18°C
Humidity 39%
Wind ENE 11 km/h
Barometer  102.5 kPa
Dew Point 6°C

Mason Weather Forecast

THIS AFTERNOON TONIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY FRIDAY
Mason, IL Weather - This Afternoon Cloudy Mason, IL Weather - Tonight Chance Of Showers Mason, IL Weather - Sunday Chance Of Showers Mason, IL Weather - Sunday Night Cloudy Mason, IL Weather - Monday Mostly Cloudy Mason, IL Weather - Monday Night Mostly Cloudy Mason, IL Weather - Tuesday Showers Mason, IL Weather - Tuesday Night Chance Of Showers Mason, IL Weather - Wednesday Chance Of Showers Mason, IL Weather - Wednesday Night Partly Cloudy Mason, IL Weather - Thursday Partly Cloudy Mason, IL Weather - Friday Partly Cloudy
Cloudy Chance of Showers Chance of Showers Cloudy Mostly Cloudy Mostly Cloudy Showers Chance of Showers Chance of Showers Partly Cloudy Partly Cloudy Partly Cloudy
Hi: 65°FHi: 18°C
Lo: 55°FLo: 13°C Hi: 65°FHi: 18°C
Lo: 51°FLo: 11°C Hi: 69°FHi: 21°C
Lo: 59°FLo: 15°C Hi: 71°FHi: 22°C
Hi: 69°FHi: 21°C
Lo: 55°FLo: 13°C
Hi: 69°FHi: 21°C
Lo: 55°FLo: 13°C
Hi: 65°FHi: 18°C
Lo: 45°FLo: 7°C
Hi: 65°FHi: 18°C
Lo: 45°FLo: 7°C
Hi: 65°FHi: 18°C
Lo: 45°FLo: 7°C
POP: 30% POP: 40% POP: 70% POP: 50% POP: 50%
POP = Probability of Precipitation.
Weather Outlook Updated: 122 PM CDT Sat Oct 31 2026 Mason, IL Weather - WeatherWorld.com

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Issued: 210 PM CDT Sat Oct 31 2026

Key Messages

  • Isolated to scattered (20-40%) showers will continue through Sunday afternoon. Rainfall under a tenth of an inch is most likely with isolated pockets around a quarter inch.
  • Gusty winds arrive Tuesday with a 40-60% chance for wind gusts to exceed 40 mph.

Discussion

... Issued at 158 PM CDT Sat Oct 31 2026

This Weekend... Surface high pressure remains centered over the lower Great Lakes this afternoon, while aloft, an expansive ridge stretches from the Southeast CONUS to the Canadian Rock...