Morgan County, IL Weather Forecast
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Chance Showers And Thunderstorms then Showers And Thunderstorms
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A chance of showers and thunderstorms before 8am, then showers and thunderstorms between 8am and 2pm, then showers and thunderstorms likely. Cloudy, with a high near 79. South wind 15 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
County Weather Overview
This county weather page brings together forecast coverage for Morgan County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 4 of 4 mapped cities in Morgan County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- May 18 to May 24, 2026
- Latest sync
- May 18, 2026 8:57 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Morgan County
Sunday looks like the warmest upcoming period in Morgan County at 85 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 46 degrees F.
The strongest winds are forecast for Today at about 15 to 18 mph S.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- May 18, 2026 8:57 AM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KILX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. South wind 14 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms likely before 10am, then a chance of showers and thunderstorms between 10am and noon, then showers and thunderstorms. Mostly cloudy. High near 79, with temperatures falling to around 74 in the afternoon. West southwest wind 12 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms before 1am. Mostly cloudy, with a low around 51. North northwest wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
Partly sunny, with a high near 68. North wind 8 to 12 mph, with gusts as high as 18 mph.
Mostly cloudy, with a low around 46. Northeast wind around 9 mph, with gusts as high as 17 mph.
Mostly sunny, with a high near 71. East northeast wind around 10 mph, with gusts as high as 17 mph.
A slight chance of rain showers after 1am. Mostly cloudy, with a low around 52.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 74. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 56.
A slight chance of rain showers before 7am, then a slight chance of showers and thunderstorms between 7am and 1pm. Partly sunny, with a high near 81.
Partly cloudy, with a low around 58.
Mostly sunny, with a high near 85.
Partly cloudy, with a low around 61.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
May 18
|
Chance Showers And Thunderstorms then Showers And Thunderstorms
|
79°F |
15 to 18 mph
S
|
|
Tonight
May 18
|
Chance Showers And Thunderstorms
|
68°F |
14 to 17 mph
S
|
|
Tuesday
May 19
|
Showers And Thunderstorms
|
79°F |
12 to 16 mph
WSW
|
|
Tuesday Night
May 19
|
Showers And Thunderstorms
|
51°F |
9 to 13 mph
NNW
|
|
Wednesday
May 20
|
Partly Sunny
|
68°F |
8 to 12 mph
N
|
|
Wednesday Night
May 20
|
Mostly Cloudy
|
46°F |
9 mph
NE
|
|
Thursday
May 21
|
Mostly Sunny
|
71°F |
10 mph
ENE
|
|
Thursday Night
May 21
|
Mostly Cloudy then Slight Chance Rain Showers
|
52°F |
8 mph
E
|
|
Friday
May 22
|
Chance Rain Showers
|
74°F |
8 mph
E
|
|
Friday Night
May 22
|
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
|
56°F |
6 mph
ESE
|
|
Saturday
May 23
|
Slight Chance Showers And Thunderstorms
|
81°F |
7 mph
SW
|
|
Saturday Night
May 23
|
Partly Cloudy
|
58°F |
6 mph
WSW
|
|
Sunday
May 24
|
Mostly Sunny
|
85°F |
7 mph
SSE
|
|
Sunday Night
May 24
|
Partly Cloudy
|
61°F |
6 mph
SSE
|
Major City Forecasts
Live forecast snapshots for major cities across Morgan County.
Coverage
Forecast coverage currently spans 4 of 4 mapped cities in Morgan County.
Largest mapped city population in this region: 18,488.
