Fairmount, IL Weather Forecast
Local 7-day forecast
Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Fairmount, IL in one place.
A slight chance of showers and thunderstorms after 10am. Partly sunny, with a high near 88. Southwest wind 8 to 12 mph, with gusts as high as 17 mph. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible.
Local Weather Overview
This forecast page for Fairmount, 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: Jun 8, 2026 11:07 PM CDT.
The active forecast window currently covers Jun 9 to Jun 15, 2026 for Fairmount, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 9 to Jun 15, 2026
- Latest sync
- Jun 8, 2026 11:07 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Fairmount
Wednesday looks like the warmest upcoming period in Fairmount at 91 degrees F.
Sunday Night is the coolest period ahead with temperatures near 60 degrees F.
The strongest winds are forecast for Thursday at about 13 to 22 mph SSW.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 8, 2026 11:07 PM 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 before 3am. Partly cloudy, with a low around 72. Southwest wind 5 to 9 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Mostly sunny, with a high near 91. South southwest wind 9 to 18 mph, with gusts as high as 25 mph. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 72. South southwest wind 14 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers before 10am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 90. South southwest wind 13 to 22 mph, with gusts as high as 28 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 67. West southwest wind 10 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
A chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 85. Chance of precipitation is 30%.
Mostly clear, with a low around 62.
Sunny, with a high near 88.
A chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 63.
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 83.
A chance of showers and thunderstorms. Partly cloudy, with a low around 60.
A chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 81.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jun 9
|
Slight Chance Showers And Thunderstorms
|
88°F |
8 to 12 mph
SW
|
|
Tuesday Night
Jun 9
|
Chance Showers And Thunderstorms
|
72°F |
5 to 9 mph
SW
|
|
Wednesday
Jun 10
|
Mostly Sunny
|
91°F |
9 to 18 mph
SSW
|
|
Wednesday Night
Jun 10
|
Chance Showers And Thunderstorms
|
72°F |
14 to 17 mph
SSW
|
|
Thursday
Jun 11
|
Chance Showers And Thunderstorms
|
90°F |
13 to 22 mph
SSW
|
|
Thursday Night
Jun 11
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
67°F |
10 to 20 mph
WSW
|
|
Friday
Jun 12
|
Chance Showers And Thunderstorms then Mostly Sunny
|
85°F |
10 mph
WNW
|
|
Friday Night
Jun 12
|
Mostly Clear
|
62°F |
3 to 7 mph
WSW
|
|
Saturday
Jun 13
|
Sunny
|
88°F |
5 to 10 mph
SW
|
|
Saturday Night
Jun 13
|
Chance Showers And Thunderstorms
|
63°F |
5 to 8 mph
WSW
|
|
Sunday
Jun 14
|
Chance Showers And Thunderstorms
|
83°F |
7 to 10 mph
NNW
|
|
Sunday Night
Jun 14
|
Chance Showers And Thunderstorms
|
60°F |
6 to 9 mph
N
|
|
Monday
Jun 15
|
Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
81°F |
7 to 10 mph
ESE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Fairmount.