St. David, IL Weather Forecast

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St. David, IL Weather Forecast

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St. David IL weather  - Mostly Cloudy - 71°F
Mostly Cloudy
71°F
Updated 7:07 am
Feels Like 74°F
Humidity 90%
Wind NW 7 mph
Barometer  30.07 in
Dew Point 68°F
St. David IL weather  - Mostly Cloudy - 22°C
Mostly Cloudy
22°C
Updated 7:07 am
Feels Like 23°C
Humidity 90%
Wind NW 11 km/h
Barometer  101.8 kPa
Dew Point 20°C

St. David Weather Forecast

TODAY TONIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT
St. David, IL Weather - Today Chance Of T-Storm St. David, IL Weather - Tonight Chance Of T-Storm St. David, IL Weather - Thursday Chance Of Showers St. David, IL Weather - Thursday Night Mostly Clear St. David, IL Weather - Friday Sunny St. David, IL Weather - Friday Night Mostly Clear St. David, IL Weather - Saturday Chance Of Showers St. David, IL Weather - Saturday Night Chance Of Showers St. David, IL Weather - Sunday Chance Of Showers St. David, IL Weather - Sunday Night Partly Cloudy St. David, IL Weather - Monday Chance Of Showers St. David, IL Weather - Monday Night Chance Of T-Storm
Chance of T-Storm Chance of T-Storm Chance of Showers Mostly Clear Sunny Mostly Clear Chance of Showers Chance of Showers Chance of Showers Partly Cloudy Chance of Showers Chance of T-Storm
Hi: 81°FHi: 27°C
Lo: 69°FLo: 21°C Hi: 79°FHi: 26°C
Lo: 59°FLo: 15°C Hi: 81°FHi: 27°C
Lo: 65°FLo: 18°C Hi: 85°FHi: 29°C
Lo: 65°FLo: 18°C Hi: 85°FHi: 29°C
Lo: 69°FLo: 21°C Hi: 90°FHi: 32°C
Lo: 69°FLo: 21°C
POP: 70% POP: 50% POP: 50% POP: 40% POP: 30% POP: 30% POP: 30% POP: 60%
POP = Probability of Precipitation.
Weather Outlook Updated: 637 AM CDT Wed Sep 09 2026 St. David, IL Weather - WeatherWorld.com

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Issued: 557 AM CDT Wed Sep 9 2026

Key Messages

  • Heat indices will top out around 100 degrees this afternoon south of I-72 due to high temperatures in the 90s and rising humidity levels.
  • Scattered thunderstorms this morning and afternoon, becoming more widespread late tonight along a stalled front; localized heavy rainfall of 1 to 3 inches could cause localized flooding, particularly south of I-70. There is a marginal risk (level 1 of 5) for severe thunderstorms near/south of 1- 72.

Discussion

... Issued at 205 AM CDT Wed Sep 9 2026

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