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Peoria, IL Weather Forecast

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Peoria, IL Weather Forecast

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Peoria IL weather - Clear - 51°F
Clear
51°F
Updated 12:43 pm
Feels Like 48°F
Humidity 58%
Wind N 0 mph
Barometer  30.57 in
Dew Point 37°F
Peoria IL weather - Clear - 11°C
Clear
11°C
Updated 12:43 pm
Feels Like 9°C
Humidity 58%
Wind N 0 km/h
Barometer  103.5 kPa
Dew Point 3°C
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Peoria Weather Forecast

THIS AFTERNOON TONIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY WEDNESDAY THURSDAY FRIDAY
Peoria, IL Weather - This Afternoon Sunny Peoria, IL Weather - Tonight Clear Peoria, IL Weather - Sunday Sunny Peoria, IL Weather - Sunday Night Clear Peoria, IL Weather - Monday Sunny Peoria, IL Weather - Monday Night Partly Cloudy Peoria, IL Weather - Tuesday Mostly Clear Peoria, IL Weather - Wednesday Mostly Clear Peoria, IL Weather - Thursday Mostly Clear Peoria, IL Weather - Friday Mostly Clear
Sunny Clear Sunny Clear Sunny Partly Cloudy Mostly Clear Mostly Clear Mostly Clear Mostly Clear
Hi: 59°FHi: 15°C
 Lo: 39°FLo: 4°C Hi: 65°FHi: 18°C
 Lo: 39°FLo: 4°C Hi: 69°FHi: 21°C
 Lo: 41°FLo: 5°C Hi: 75°FHi: 24°C
Lo: 49°FLo: 9°C		 Hi: 75°FHi: 24°C
Lo: 49°FLo: 9°C		 Hi: 75°FHi: 24°C
Lo: 49°FLo: 9°C		 Hi: 75°FHi: 24°C
Lo: 49°FLo: 9°C
POP = Probability of Precipitation.
Weather Outlook Updated: 1147 AM CDT Sat Oct 17 2026 Peoria, IL Weather - WeatherWorld.com

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Issued: 552 AM CDT Sat Oct 17 2026

Key Messages

  • A Frost Advisory is in effect this morning along and west of a Lacon...to Lincoln...to Taylorville line.
  • Frost will be likely across areas generally east of I-55 tonight. Sensitive outdoor plants need to be protected this weekend in order to avoid damage.

Discussion

... Issued at 143 AM CDT Sat Oct 17 2026

The large eastern US trough is approaching the eastern seaboard this morning with NNW flow aloft in its wake. At the surface, high pressure is centered over the central and southern H...