Thomas, IL Weather Forecast

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Thomas, IL Weather Forecast

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Thomas IL weather  - Clear - 94°F
Clear
94°F
Updated 2:38 pm
Feels Like 105°F
Humidity 52%
Wind N 0 mph
Barometer  29.95 in
Dew Point 74°F
Thomas IL weather  - Clear - 34°C
Clear
34°C
Updated 2:38 pm
Feels Like 40°C
Humidity 52%
Wind N 0 km/h
Barometer  101.4 kPa
Dew Point 23°C

Thomas Weather Forecast

THIS AFTERNOON TONIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT LABOR DAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT
Thomas, IL Weather - This Afternoon Sunny Thomas, IL Weather - Tonight Chance Of T-Storm Thomas, IL Weather - Saturday Sunny Thomas, IL Weather - Saturday Night Partly Cloudy Thomas, IL Weather - Sunday Sunny Thomas, IL Weather - Sunday Night Mostly Clear Thomas, IL Weather - Labor Day Mostly Clear Thomas, IL Weather - Monday Night Partly Cloudy Thomas, IL Weather - Tuesday Partly Cloudy Thomas, IL Weather - Tuesday Night Chance Of Showers Thomas, IL Weather - Wednesday Mostly Sunny Thomas, IL Weather - Wednesday Night Chance Of Showers
Sunny Chance of T-Storm Sunny Partly Cloudy Sunny Mostly Clear Mostly Clear Partly Cloudy Partly Cloudy Chance of Showers Mostly Sunny Chance of Showers
Hi: 91°FHi: 33°C
Lo: 71°FLo: 22°C Hi: 91°FHi: 33°C
Lo: 65°FLo: 18°C Hi: 85°FHi: 29°C
Hi: 81°FHi: 27°C
Lo: 61°FLo: 16°C
Hi: 81°FHi: 27°C
Lo: 61°FLo: 16°C
Hi: 90°FHi: 32°C
Lo: 65°FLo: 18°C
Hi: 90°FHi: 32°C
Lo: 65°FLo: 18°C
Lo: 71°FLo: 22°C Hi: 91°FHi: 33°C
Lo: 69°FLo: 21°C
POP: 20% POP: 30% POP: 40%
POP = Probability of Precipitation.
Weather Outlook Updated: 126 PM CDT Fri Sep 04 2026 Thomas, IL Weather - WeatherWorld.com

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Issued: 1235 PM CDT Fri Sep 4 2026

Key Messages

  • Impactful heat will continue across the area through Saturday with peak heat indices of 100 to 110. The heat warnings may need to be expanded Saturday into the I-80 corridor east of the Quad Cities.
  • There will be brief reprieves from the heat late this weekend and late next week. Another surge of heat and humidity with heat indices around 100 is expected the middle of next week. The overall pattern has a 55-70% probability of above normal temperatures through mid- September.
  • There is...