Farmington, IL Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Farmington, IL in one place.
Mostly sunny, with a high near 86. East wind around 10 mph, with gusts as high as 18 mph.
Local Weather Overview
This forecast page for Farmington, 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: May 30, 2026 7:42 PM CDT.
The active forecast window currently covers May 30 to Jun 5, 2026 for Farmington, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 30 to Jun 5, 2026
- Latest sync
- May 30, 2026 7:42 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Farmington
Friday looks like the warmest upcoming period in Farmington at 88 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 54 degrees F.
The strongest winds are forecast for Friday at about 8 to 14 mph SSW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- May 30, 2026 7:42 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
Mostly cloudy, with a low around 59. East southeast wind 8 to 13 mph, with gusts as high as 23 mph.
Partly sunny, with a high near 80. Southeast wind 7 to 10 mph, with gusts as high as 21 mph.
A slight chance of rain showers between 3am and 4am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 59. East southeast wind around 6 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 83. East northeast wind around 6 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 56. Northeast wind around 6 mph.
Sunny, with a high near 83. Northeast wind around 9 mph.
Mostly clear, with a low around 54.
Sunny, with a high near 83.
Mostly clear, with a low around 56.
Mostly sunny, with a high near 86.
Partly cloudy, with a low around 62.
A chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 88.
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
May 30
|
Mostly Sunny
|
86°F |
10 mph
E
|
|
Tonight
May 30
|
Mostly Cloudy
|
59°F |
8 to 13 mph
ESE
|
|
Sunday
May 31
|
Partly Sunny
|
80°F |
7 to 10 mph
SE
|
|
Sunday Night
May 31
|
Partly Cloudy then Chance Showers And Thunderstorms
|
59°F |
6 mph
ESE
|
|
Monday
Jun 1
|
Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
83°F |
6 mph
ENE
|
|
Monday Night
Jun 1
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
56°F |
6 mph
NE
|
|
Tuesday
Jun 2
|
Sunny
|
83°F |
9 mph
NE
|
|
Tuesday Night
Jun 2
|
Mostly Clear
|
54°F |
3 to 7 mph
E
|
|
Wednesday
Jun 3
|
Sunny
|
83°F |
6 mph
SE
|
|
Wednesday Night
Jun 3
|
Mostly Clear
|
56°F |
3 mph
S
|
|
Thursday
Jun 4
|
Mostly Sunny
|
86°F |
5 to 12 mph
S
|
|
Thursday Night
Jun 4
|
Partly Cloudy
|
62°F |
7 to 10 mph
SSW
|
|
Friday
Jun 5
|
Chance Showers And Thunderstorms
|
88°F |
8 to 14 mph
SSW
|
|
Friday Night
Jun 5
|
Chance Showers And Thunderstorms
|
64°F |
7 to 12 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Farmington.
