Fountain, IL Weather Forecast

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Fountain, IL Weather Forecast

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Fountain IL weather  - Overcast - 67°F
Overcast
67°F
Updated 9:33 pm
Feels Like 60°F
Humidity 70%
Wind ENE 6 mph
Barometer  30.26 in
Dew Point 57°F
Fountain IL weather  - Overcast - 19°C
Overcast
19°C
Updated 9:33 pm
Feels Like 16°C
Humidity 70%
Wind ENE 10 km/h
Barometer  102.5 kPa
Dew Point 14°C

Fountain Weather Forecast

TONIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY TUESDAY TUESDAY NIGHT
Fountain, IL Weather - Tonight Mostly Cloudy Fountain, IL Weather - Thursday Partly Sunny Fountain, IL Weather - Thursday Night Mostly Cloudy Fountain, IL Weather - Friday Partly Sunny Fountain, IL Weather - Friday Night Mostly Cloudy Fountain, IL Weather - Saturday Chance Of Showers Fountain, IL Weather - Saturday Night Chance Of Showers Fountain, IL Weather - Sunday Chance Of Showers Fountain, IL Weather - Sunday Night Partly Cloudy Fountain, IL Weather - Monday Partly Cloudy Fountain, IL Weather - Tuesday Chance Of T-Storm Fountain, IL Weather - Tuesday Night Chance Of T-Storm
Mostly Cloudy Partly Sunny Mostly Cloudy Partly Sunny Mostly Cloudy Chance of Showers Chance of Showers Chance of Showers Partly Cloudy Partly Cloudy Chance of T-Storm Chance of T-Storm
Lo: 55°FLo: 13°C Hi: 75°FHi: 24°C
Lo: 59°FLo: 15°C Hi: 79°FHi: 26°C
Lo: 55°FLo: 13°C Hi: 71°FHi: 22°C
Hi: 79°FHi: 26°C
Lo: 55°FLo: 13°C
Hi: 79°FHi: 26°C
Lo: 55°FLo: 13°C
Hi: 81°FHi: 27°C
Lo: 59°FLo: 15°C
Hi: 81°FHi: 27°C
Lo: 59°FLo: 15°C
Hi: 85°FHi: 29°C
Lo: 61°FLo: 16°C
POP: 30% POP: 20% POP: 20% POP: 50% POP: 70%
POP = Probability of Precipitation.
Weather Outlook Updated: 532 PM CDT Wed Sep 23 2026 Fountain, IL Weather - WeatherWorld.com

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Issued: 604 PM CDT Wed Sep 23 2026

Key Messages

  • Normal to below normal temperatures will remain in place through the weekend.
  • The next chance for widespread rain arrive next week.

Aviation

/00Z TAFS THROUGH 06Z FRIDAY/... Issued at 604 PM CDT Wed Sep 23 2026

The primary concern during the 18Z TAF period will be the potential for lowering ceilings late this evening through tomorrow morning. While stratus already blankets much of the area at the start of the period, ceilings are largely still VFR as of 23Z. However, ceilings are expect...