Grand Tower, IL Weather Forecast

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Grand Tower, IL Weather Forecast

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Grand Tower IL weather  - Light Rain - 55°F
Light Rain
55°F
Updated 5:37 am
Feels Like 47°F
Humidity 89%
Wind NNW 13 mph
Barometer  30.11 in
Dew Point 52°F
Grand Tower IL weather  - Light Rain - 13°C
Light Rain
13°C
Updated 5:37 am
Feels Like 9°C
Humidity 89%
Wind NNW 21 km/h
Barometer  101.9 kPa
Dew Point 11°C

Grand Tower Weather Forecast

TODAY TONIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY TUESDAY WEDNESDAY WEDNESDAY NIGHT THURSDAY
Grand Tower, IL Weather - Today Mostly Cloudy Grand Tower, IL Weather - Tonight Mostly Cloudy Grand Tower, IL Weather - Saturday Sunny Grand Tower, IL Weather - Saturday Night Clear Grand Tower, IL Weather - Sunday Sunny Grand Tower, IL Weather - Sunday Night Mostly Clear Grand Tower, IL Weather - Monday Mostly Clear Grand Tower, IL Weather - Tuesday Mostly Clear Grand Tower, IL Weather - Wednesday Sunny Grand Tower, IL Weather - Wednesday Night Clear Grand Tower, IL Weather - Thursday Sunny
Mostly Cloudy Mostly Cloudy Sunny Clear Sunny Mostly Clear Mostly Clear Mostly Clear Sunny Clear Sunny
Hi: 55°FHi: 13°C
Lo: 40°FLo: 4°C Hi: 60°FHi: 16°C
Lo: 35°FLo: 2°C Hi: 65°FHi: 18°C
Hi: 71°FHi: 22°C
Lo: 41°FLo: 5°C
Hi: 71°FHi: 22°C
Lo: 41°FLo: 5°C
Hi: 71°FHi: 22°C
Lo: 41°FLo: 5°C
Hi: 79°FHi: 26°C
Lo: 45°FLo: 7°C Hi: 79°FHi: 26°C
POP = Probability of Precipitation.
Weather Outlook Updated: 432 AM CDT Fri Oct 16 2026 Grand Tower, IL Weather - WeatherWorld.com

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Issued: 1257 AM CDT Fri Oct 16 2026

Key Messages

  • Dramatically cooler today as a strong cold front sweeps through. Highs are forecast 27 to 32 degrees colder than yesterday.
  • Saturday night still looks to have a high potential for a first frost across most of the CWA with overnight lows in the 30s.
  • Sunday kicks off a warming trend with highs returning back to around or slightly above normal by mid week amid dry and settled weather with warm days and cool nights.

Discussion

... Issued at 1257 AM CDT Fri Oct 16 2026

A very strong cold fro...