Cullom, IL Weather Forecast

Local 7-day forecast

82°

Showers And Thunderstorms then Showers And Thunderstorms Likely

Track current conditions, temperature changes, wind, and the full daily outlook for Cullom, IL in one place.

Thursday, September 17, 2026

Wind: 0 to 5 mph NNW

Thursday

Showers and thunderstorms before 10am, then showers and thunderstorms likely between 10am and 1pm. Mostly cloudy. High near 82, with temperatures falling to around 80 in the afternoon. North northwest wind 0 to 5 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

Local 7-day forecast

Local Weather Overview

This forecast page for Cullom, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Sep 17, 2026 12:28 AM CDT.

The active forecast window currently covers Sep 17 to Sep 23, 2026 for Cullom, IL.

Page Snapshot

Page focus: city weather
Forecast window: Sep 17 to Sep 23, 2026
Latest sync: Sep 17, 2026 12:28 AM CDT
Forecast office: LOT
Source: NOAA / NWS

Next High

82°F

Thursday

Next Low

64°F

Thursday Night

Rain Outlook

Periods mentioning precipitation

Windiest

5 to 10 mph

Friday Night

Daily Outlook

Today

Sep 17

Showers And Thunderstorms then Showers And Thunderstorms Likely

82 °F

/ 64°F

Wind 0 to 5 mph

Fri

Sep 18

Partly Sunny

82 °F

/ 65°F

Wind 5 mph

Sat

Sep 19

Scattered Showers And Thunderstorms

90 °F

/ 66°F

Wind 10 mph

Sun

Sep 20

Showers And Thunderstorms Likely

79 °F

/ 60°F

Wind 0 to 10 mph

Mon

Sep 21

Chance Showers And Thunderstorms

77 °F

/ 58°F

Wind 5 to 10 mph

Tue

Sep 22

Chance Rain Showers

73 °F

/ 57°F

Wind 5 to 10 mph

Wed

Sep 23

Slight Chance Rain Showers

77 °F

Wind 0 to 5 mph

This Week in Cullom

Saturday looks like the warmest upcoming period in Cullom at 90 degrees F.

Tuesday Night is the coolest period ahead with temperatures near 57 degrees F.

The strongest winds are forecast for Friday Night at about 5 to 10 mph SE.

Precipitation is mentioned in 12 upcoming forecast periods.

Forecast Details

Last updated: Sep 17, 2026 12:28 AM CDT
Coverage: 7 days
Time zone: America/Chicago
Forecast office: LOT
Radar station: KLOT

Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.

Open NOAA source

Extended Forecast

Thursday Night

Sep 17

64°F

Isolated Showers And Thunderstorms

5 mph NNE

Isolated showers and thunderstorms between 7pm and 1am. Mostly cloudy, with a low around 64. North northeast wind around 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

Friday

Sep 18

82°F

Partly Sunny

5 mph E

Partly sunny, with a high near 82. East wind around 5 mph, with gusts as high as 10 mph.

Friday Night

Sep 18

65°F

Partly Cloudy then Isolated Showers And Thunderstorms

5 to 10 mph SE

Isolated showers and thunderstorms after 1am. Partly cloudy, with a low around 65. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

Saturday

Sep 19

90°F

Scattered Showers And Thunderstorms

10 mph SW

Scattered showers and thunderstorms. Partly sunny, with a high near 90. Chance of precipitation is 30%.

Saturday Night

Sep 19

66°F

Scattered Showers And Thunderstorms then Showers And Thunderstorms Likely

0 to 5 mph WSW

Scattered showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 66.

Sunday

Sep 20

79°F

Showers And Thunderstorms Likely

0 to 10 mph NNE

Showers and thunderstorms likely. Mostly cloudy, with a high near 79.

Sunday Night

Sep 20

60°F

Chance Showers And Thunderstorms

5 to 10 mph NE

A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 60.

Monday

Sep 21

77°F

Chance Showers And Thunderstorms

5 to 10 mph ENE

A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms. Mostly cloudy, with a high near 77.

Monday Night

Sep 21

58°F

Chance Showers And Thunderstorms

5 to 10 mph ENE

A chance of showers and thunderstorms. Mostly cloudy, with a low around 58.

Tuesday

Sep 22

73°F

Chance Rain Showers

5 to 10 mph NNE

A chance of rain showers. Partly sunny, with a high near 73.

Tuesday Night

Sep 22

57°F

Slight Chance Rain Showers then Mostly Cloudy

0 to 5 mph N

A slight chance of rain showers before 7pm. Mostly cloudy, with a low around 57.

Wednesday

Sep 23

77°F

Slight Chance Rain Showers

0 to 5 mph N

A slight chance of rain showers between 7am and 1pm. Partly sunny, with a high near 77.

Detailed Forecast

Period	Conditions	Temp	Wind	Details
Thursday Sep 17	Showers And Thunderstorms then Showers And Thunderstorms Likely	82°F	0 to 5 mph NNW	Showers and thunderstorms before 10am, then showers and thunderstorms likely between 10am and 1pm. Mostly cloudy. High n...
Thursday Night Sep 17	Isolated Showers And Thunderstorms	64°F	5 mph NNE	Isolated showers and thunderstorms between 7pm and 1am. Mostly cloudy, with a low around 64. North northeast wind around...
Friday Sep 18	Partly Sunny	82°F	5 mph E	Partly sunny, with a high near 82. East wind around 5 mph, with gusts as high as 10 mph.
Friday Night Sep 18	Partly Cloudy then Isolated Showers And Thunderstorms	65°F	5 to 10 mph SE	Isolated showers and thunderstorms after 1am. Partly cloudy, with a low around 65. Southeast wind 5 to 10 mph, with gust...
Saturday Sep 19	Scattered Showers And Thunderstorms	90°F	10 mph SW	Scattered showers and thunderstorms. Partly sunny, with a high near 90. Chance of precipitation is 30%.
Saturday Night Sep 19	Scattered Showers And Thunderstorms then Showers And Thunderstorms Likely	66°F	0 to 5 mph WSW	Scattered showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around...
Sunday Sep 20	Showers And Thunderstorms Likely	79°F	0 to 10 mph NNE	Showers and thunderstorms likely. Mostly cloudy, with a high near 79.
Sunday Night Sep 20	Chance Showers And Thunderstorms	60°F	5 to 10 mph NE	A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a...
Monday Sep 21	Chance Showers And Thunderstorms	77°F	5 to 10 mph ENE	A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms. Mostly cloudy, with...
Monday Night Sep 21	Chance Showers And Thunderstorms	58°F	5 to 10 mph ENE	A chance of showers and thunderstorms. Mostly cloudy, with a low around 58.
Tuesday Sep 22	Chance Rain Showers	73°F	5 to 10 mph NNE	A chance of rain showers. Partly sunny, with a high near 73.
Tuesday Night Sep 22	Slight Chance Rain Showers then Mostly Cloudy	57°F	0 to 5 mph N	A slight chance of rain showers before 7pm. Mostly cloudy, with a low around 57.
Wednesday Sep 23	Slight Chance Rain Showers	77°F	0 to 5 mph N	A slight chance of rain showers between 7am and 1pm. Partly sunny, with a high near 77.

Nearby Forecasts

Explore weather pages for nearby cities and major places around Cullom.

Region Links

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Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.