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Diona, IL Weather Forecast

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Diona, IL Weather Forecast

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Diona IL weather - Clear - 68°F
Clear
68°F
Updated 2:06 am
Feels Like 64°F
Humidity 67%
Wind SSE 12 mph
Barometer  30.06 in
Dew Point 57°F
Diona IL weather - Clear - 20°C
Clear
20°C
Updated 2:06 am
Feels Like 18°C
Humidity 67%
Wind SSE 19 km/h
Barometer  101.7 kPa
Dew Point 14°C
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Diona Weather Forecast

REST OF TONIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY FRIDAY SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY
Diona, IL Weather - Rest Of Tonight Mostly Clear Diona, IL Weather - Tuesday Chance Of T-Storm Diona, IL Weather - Tuesday Night Chance Of T-Storm Diona, IL Weather - Wednesday Chance Of T-Storm Diona, IL Weather - Wednesday Night Mostly Clear Diona, IL Weather - Thursday Mostly Clear Diona, IL Weather - Friday Mostly Clear Diona, IL Weather - Saturday Mostly Clear Diona, IL Weather - Saturday Night Partly Cloudy Diona, IL Weather - Sunday Partly Cloudy Diona, IL Weather - Sunday Night Partly Cloudy Diona, IL Weather - Monday Chance Of Showers
Mostly Clear Chance of T-Storm Chance of T-Storm Chance of T-Storm Mostly Clear Mostly Clear Mostly Clear Mostly Clear Partly Cloudy Partly Cloudy Partly Cloudy Chance of Showers
Lo: 65°FLo: 18°C Hi: 95°FHi: 35°C
 Lo: 70°FLo: 21°C Hi: 91°FHi: 33°C
 Lo: 71°FLo: 22°C Hi: 95°FHi: 35°C
Lo: 70°FLo: 21°C		 Hi: 95°FHi: 35°C
Lo: 70°FLo: 21°C		 Hi: 95°FHi: 35°C
Lo: 70°FLo: 21°C		 Hi: 89°FHi: 32°C
Lo: 69°FLo: 21°C		 Hi: 89°FHi: 32°C
Lo: 69°FLo: 21°C		 Lo: 65°FLo: 18°C Hi: 81°FHi: 27°C
POP: 20% POP: 50% POP: 50% POP: 30%
POP = Probability of Precipitation.
Weather Outlook Updated: 1237 AM CDT Tue Sep 15 2026 Diona, IL Weather - WeatherWorld.com

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Issued: 152 AM CDT Tue Sep 15 2026

Key Messages

  • Showers and thunderstorms will track across central Illinois today. For this afternoon and evening, there is a marginal risk (level 1 of 5) that a few storms could produce isolated damaging wind gusts.
  • Repeated heavy rainfall today and Wednesday will bring 0.5 to 1.5 inches of rain across most of the area, with isolated swaths of 2 to 3 inches possible near and north of the Illinois River.
  • Hot and humid conditions today will drive afternoon heat indices near 100 degrees, primarily al...