Fayette County, IL Weather Forecast

County weather hub

89°
F

Patchy Fog then Sunny

Compare major city weather across Fayette County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.

Friday, October 9, 2026
Wind: 2 to 9 mph SE
Today

Patchy fog before 8am. Sunny. High near 89, with temperatures falling to around 85 in the afternoon. Southeast wind 2 to 9 mph.

County weather hub

County Weather Overview

This county weather page brings together forecast coverage for Fayette County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.

Current forecast coverage spans 2 of 2 mapped cities in Fayette County.

Page Snapshot

Page focus
county weather
Forecast window
Oct 9 to Oct 15, 2026
Latest sync
Oct 9, 2026 8:38 AM CDT
Forecast office
LSX
Source
NOAA / NWS
Next High
89°F
Today
Next Low
58°F
Tonight
Rain Outlook
7
Periods mentioning precipitation
Windiest
7 to 12 mph
Thursday

Daily Outlook

Today
Oct 9
Patchy Fog then Sunny
89 °F
/ 58°F
Wind 2 to 9 mph
Sat
Oct 10
Mostly Cloudy
79 °F
/ 57°F
Wind 3 to 8 mph
Sun
Oct 11
Chance Rain Showers then Mostly Sunny
79 °F
/ 56°F
Wind 6 mph
Mon
Oct 12
Sunny
90 °F
/ 65°F
Wind 2 to 9 mph
Tue
Oct 13
Sunny
87 °F
/ 59°F
Wind 5 to 9 mph
Wed
Oct 14
Chance Rain Showers
81 °F
/ 60°F
Wind 5 to 9 mph
Thu
Oct 15
Chance Rain Showers
81 °F
/ 56°F
Wind 7 to 12 mph

This Week in Fayette County

Columbus Day looks like the warmest upcoming period in Fayette County at 90 degrees F.

Sunday Night is the coolest period ahead with temperatures near 56 degrees F.

The strongest winds are forecast for Thursday at about 7 to 12 mph S.

Precipitation is mentioned in 7 upcoming forecast periods.

Forecast Details

Last updated
Oct 9, 2026 8:38 AM CDT
Coverage
7 days
Time zone
America/Chicago
Forecast office
LSX
Radar station
KILX

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

Open NOAA source

Extended Forecast

Tonight
Oct 9
58°F
Partly Cloudy
6 mph SE

Partly cloudy, with a low around 58. Southeast wind around 6 mph.

Saturday
Oct 10
79°F
Mostly Cloudy
3 to 8 mph SE

Mostly cloudy, with a high near 79. Southeast wind 3 to 8 mph.

Saturday Night
Oct 10
57°F
Chance Rain Showers
5 to 8 mph E

A chance of rain showers after 7pm. Mostly cloudy, with a low around 57. East wind 5 to 8 mph. Chance of precipitation is 30%.

Sunday
Oct 11
79°F
Chance Rain Showers then Mostly Sunny
6 mph N

A chance of rain showers before 7am. Mostly sunny, with a high near 79. North wind around 6 mph. Chance of precipitation is 30%.

Sunday Night
Oct 11
56°F
Mostly Clear
2 mph W

Mostly clear, with a low around 56.

Columbus Day
Oct 12
90°F
Sunny
2 to 9 mph SW

Sunny, with a high near 90.

Monday Night
Oct 12
65°F
Mostly Clear
6 mph SW

Mostly clear, with a low around 65.

Tuesday
Oct 13
87°F
Sunny
5 to 9 mph W

Sunny, with a high near 87.

Tuesday Night
Oct 13
59°F
Mostly Clear then Slight Chance Rain Showers
3 to 7 mph NE

A slight chance of rain showers after 1am. Mostly clear, with a low around 59. Chance of precipitation is 20%.

Wednesday
Oct 14
81°F
Chance Rain Showers
5 to 9 mph SE

A chance of rain showers. Mostly sunny, with a high near 81. Chance of precipitation is 30%.

Wednesday Night
Oct 14
60°F
Chance Rain Showers
5 to 9 mph SE

A chance of rain showers. Partly cloudy, with a low around 60. Chance of precipitation is 30%.

Thursday
Oct 15
81°F
Chance Rain Showers
7 to 12 mph S

A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 40%.

Thursday Night
Oct 15
56°F
Chance Showers And Thunderstorms
5 to 10 mph SW

A chance of showers and thunderstorms. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.

Detailed Forecast

Period Conditions Temp Wind
Today
Oct 9
Patchy Fog then Sunny
89°F
2 to 9 mph
SE
Tonight
Oct 9
Partly Cloudy
58°F
6 mph
SE
Saturday
Oct 10
Mostly Cloudy
79°F
3 to 8 mph
SE
Saturday Night
Oct 10
Chance Rain Showers
57°F
5 to 8 mph
E
Sunday
Oct 11
Chance Rain Showers then Mostly Sunny
79°F
6 mph
N
Sunday Night
Oct 11
Mostly Clear
56°F
2 mph
W
Columbus Day
Oct 12
Sunny
90°F
2 to 9 mph
SW
Monday Night
Oct 12
Mostly Clear
65°F
6 mph
SW
Tuesday
Oct 13
Sunny
87°F
5 to 9 mph
W
Tuesday Night
Oct 13
Mostly Clear then Slight Chance Rain Showers
59°F
3 to 7 mph
NE
Wednesday
Oct 14
Chance Rain Showers
81°F
5 to 9 mph
SE
Wednesday Night
Oct 14
Chance Rain Showers
60°F
5 to 9 mph
SE
Thursday
Oct 15
Chance Rain Showers
81°F
7 to 12 mph
S
Thursday Night
Oct 15
Chance Showers And Thunderstorms
56°F
5 to 10 mph
SW

Major City Forecasts

Live forecast snapshots for major cities across Fayette County.

Coverage

Tracked cities
2
Coverage
100%

Forecast coverage currently spans 2 of 2 mapped cities in Fayette County.

Largest mapped city population in this region: 1,924.

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