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Mountain, IL Weather Forecast

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Mountain, IL Weather Forecast

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Mountain IL weather - Overcast - 54°F
Overcast
54°F
Updated 9:24 pm
Feels Like 50°F
Humidity 78%
Wind SSW 8 mph
Barometer  29.82 in
Dew Point 48°F
Mountain IL weather - Overcast - 12°C
Overcast
12°C
Updated 9:24 pm
Feels Like 10°C
Humidity 78%
Wind SSW 13 km/h
Barometer  100.9 kPa
Dew Point 9°C
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Mountain Weather Forecast

TONIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY
Mountain, IL Weather - Tonight Partly Cloudy Mountain, IL Weather - Thursday Chance Of Rain Mountain, IL Weather - Thursday Night Chance Of Rain Mountain, IL Weather - Friday Mostly Sunny Mountain, IL Weather - Friday Night Partly Cloudy Mountain, IL Weather - Saturday Mostly Sunny Mountain, IL Weather - Saturday Night Mostly Clear Mountain, IL Weather - Sunday Mostly Clear Mountain, IL Weather - Sunday Night Clear Mountain, IL Weather - Monday Sunny Mountain, IL Weather - Monday Night Clear Mountain, IL Weather - Tuesday Mostly Clear
Partly Cloudy Chance of Rain Chance of Rain Mostly Sunny Partly Cloudy Mostly Sunny Mostly Clear Mostly Clear Clear Sunny Clear Mostly Clear
Lo: 45°FLo: 7°C Hi: 55°FHi: 13°C
 Lo: 41°FLo: 5°C Hi: 50°FHi: 10°C
 Lo: 30°FLo: -1°C Hi: 51°FHi: 11°C
 Hi: 60°FHi: 16°C
Lo: 31°FLo: -1°C		 Hi: 60°FHi: 16°C
Lo: 31°FLo: -1°C		 Lo: 35°FLo: 2°C Hi: 65°FHi: 18°C
 Lo: 40°FLo: 4°C Hi: 65°FHi: 18°C
Lo: 41°FLo: 5°C
POP: 20% POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 624 PM CST Wed Nov 04 2026 Mountain, IL Weather - WeatherWorld.com

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Issued: 533 PM CST Wed Nov 4 2026

Key Messages

  • There is a low to medium chance of a light freeze both Friday and Saturday nights, mainly in river valleys.
  • Dry weather and moderating temperatures are forecast next week.

Aviation

/00Z TAFS THROUGH 06Z FRIDAY/... Issued at 532 PM CST Wed Nov 4 2026

Clouds are expected to lift and scatter out to VFR across most of the region. A cold front is expected to move through the region Thursday, which will bring lower and increased clouds. These clouds are expected to return terminals to MVFR by...