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Plainville, IL Weather Forecast

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Plainville, IL Weather Forecast

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Plainville IL weather - Overcast - 73°F
Overcast
73°F
Updated 4:46 am
Feels Like 75°F
Humidity 93%
Wind NE 8 mph
Barometer  30.17 in
Dew Point 71°F
Plainville IL weather - Overcast - 23°C
Overcast
23°C
Updated 4:46 am
Feels Like 24°C
Humidity 93%
Wind NE 13 km/h
Barometer  102.2 kPa
Dew Point 22°C
WX Settings

Plainville Weather Forecast

TODAY TONIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT
Plainville, IL Weather - Today Mostly Sunny Plainville, IL Weather - Tonight Partly Cloudy Plainville, IL Weather - Saturday Mostly Cloudy Plainville, IL Weather - Saturday Night Chance Of T-Storm Plainville, IL Weather - Sunday Chance Of T-Storm Plainville, IL Weather - Sunday Night Chance Of T-Storm Plainville, IL Weather - Monday Chance Of T-Storm Plainville, IL Weather - Monday Night Chance Of T-Storm Plainville, IL Weather - Tuesday Mostly Cloudy Plainville, IL Weather - Tuesday Night Mostly Cloudy Plainville, IL Weather - Wednesday Partly Cloudy Plainville, IL Weather - Wednesday Night Partly Cloudy
Mostly Sunny Partly Cloudy Mostly Cloudy Chance of T-Storm Chance of T-Storm Chance of T-Storm Chance of T-Storm Chance of T-Storm Mostly Cloudy Mostly Cloudy Partly Cloudy Partly Cloudy
Hi: 89°FHi: 32°C
 Lo: 71°FLo: 22°C Hi: 90°FHi: 32°C
 Lo: 69°FLo: 21°C Hi: 81°FHi: 27°C
 Lo: 61°FLo: 16°C Hi: 69°FHi: 21°C
 Lo: 55°FLo: 13°C Hi: 65°FHi: 18°C
Lo: 50°FLo: 10°C		 Hi: 65°FHi: 18°C
Lo: 50°FLo: 10°C		 Hi: 69°FHi: 21°C
Lo: 51°FLo: 11°C		 Hi: 69°FHi: 21°C
Lo: 51°FLo: 11°C
POP: 50% POP: 70% POP: 70% POP: 70% POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 302 AM CDT Fri Sep 18 2026 Plainville, IL Weather - WeatherWorld.com

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Issued: 255 AM CDT Fri Sep 18 2026

Key Messages

  • Summer-like heat and humidity continue at least through Saturday.
  • A slow moving cold front brings rain chances Sunday and Monday along with a shift toward cooler temperatures next week.

Aviation

/00Z TAFS THROUGH 06Z SATURDAY/... Issued at 1050 PM CDT Thu Sep 17 2026

An area of MVFR stratus with bases dropping to between 1000-1500 feet will move south from Iowa into northern Missouri and central Illinois overnight. Some locations may see IFR ceilings before 12Z, however current thinking...