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Mason, IL Weather Forecast

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Mason, IL Weather Forecast

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Mason IL weather - Overcast - 62°F
Overcast
62°F
Updated 5:28 am
Feels Like 57°F
Humidity 93%
Wind SSE 6 mph
Barometer  29.77 in
Dew Point 60°F
Mason IL weather - Overcast - 17°C
Overcast
17°C
Updated 5:28 am
Feels Like 14°C
Humidity 93%
Wind SSE 10 km/h
Barometer  100.8 kPa
Dew Point 16°C
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Mason Weather Forecast

TODAY TONIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY
Mason, IL Weather - Today Chance Of Rain Mason, IL Weather - Tonight Drizzle Mason, IL Weather - Thursday Partly Sunny Mason, IL Weather - Thursday Night Mostly Cloudy Mason, IL Weather - Friday Partly Sunny Mason, IL Weather - Friday Night Partly Cloudy Mason, IL Weather - Saturday Partly Cloudy Mason, IL Weather - Sunday Sunny Mason, IL Weather - Sunday Night Clear Mason, IL Weather - Monday Sunny Mason, IL Weather - Monday Night Clear Mason, IL Weather - Tuesday Sunny
Chance of Rain Drizzle Partly Sunny Mostly Cloudy Partly Sunny Partly Cloudy Partly Cloudy Sunny Clear Sunny Clear Sunny
Hi: 61°FHi: 16°C
 Lo: 41°FLo: 5°C Hi: 65°FHi: 18°C
 Lo: 45°FLo: 7°C Hi: 55°FHi: 13°C
 Hi: 55°FHi: 13°C
Lo: 35°FLo: 2°C		 Hi: 55°FHi: 13°C
Lo: 35°FLo: 2°C		 Hi: 59°FHi: 15°C
 Lo: 31°FLo: -1°C Hi: 61°FHi: 16°C
 Lo: 39°FLo: 4°C Hi: 65°FHi: 18°C
POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 422 AM CST Wed Nov 04 2026 Mason, IL Weather - WeatherWorld.com

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Issued: 238 AM CST Wed Nov 4 2026

Key Messages

  • Dank, blustery conditions will persist through Thursday before a strong cold front sweeps through Thursday night.
  • Frosty temperatures in the 30s will impact the region Friday night and Saturday night.

Discussion

... Issued at 236 AM CST Wed Nov 4 2026

Short Term...Today through Thursday Night

Water vapor imagery shows rapid dry-slot entrainment carving northeastward into the Mid-Mississippi Valley early this morning, effectively shutting off widespread stratiform precipitation across cen...