Farmington, IL Weather Forecast
Local 7-day forecast
Partly Sunny then Chance Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Farmington, IL in one place.
A chance of rain showers between noon and 5pm. Partly sunny, with a high near 54. Northwest wind 17 to 21 mph, with gusts as high as 37 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
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: Oct 16, 2026 12:04 AM CDT.
The active forecast window currently covers Oct 16 to Oct 22, 2026 for Farmington, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 16 to Oct 22, 2026
- Latest sync
- Oct 16, 2026 12:04 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Farmington
Wednesday looks like the warmest upcoming period in Farmington at 75 degrees F.
Friday Night is the coolest period ahead with temperatures near 34 degrees F.
The strongest winds are forecast for Friday at about 17 to 21 mph NW.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 16, 2026 12:04 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
Areas of frost after 4am. Mostly clear, with a low around 34. North northwest wind 6 to 18 mph, with gusts as high as 31 mph. New rainfall amounts less than a tenth of an inch possible.
Widespread frost before 9am. Sunny, with a high near 57. North wind 0 to 5 mph.
Areas of frost after 5am. Clear, with a low around 37. South southwest wind 1 to 5 mph.
Areas of frost before 7am. Sunny, with a high near 65. South wind 6 to 12 mph, with gusts as high as 18 mph.
Mostly clear, with a low around 41. South wind around 6 mph.
Mostly sunny, with a high near 68.
Partly cloudy, with a low around 45.
Mostly sunny, with a high near 73.
Mostly clear, with a low around 48.
Sunny, with a high near 75.
Mostly clear, with a low around 51.
Sunny, with a high near 75.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Oct 16
|
Partly Sunny then Chance Rain Showers
|
54°F |
17 to 21 mph
NW
|
|
Friday Night
Oct 16
|
Mostly Clear then Areas Of Frost
|
34°F |
6 to 18 mph
NNW
|
|
Saturday
Oct 17
|
Widespread Frost then Sunny
|
57°F |
0 to 5 mph
N
|
|
Saturday Night
Oct 17
|
Clear then Areas Of Frost
|
37°F |
1 to 5 mph
SSW
|
|
Sunday
Oct 18
|
Areas Of Frost then Sunny
|
65°F |
6 to 12 mph
S
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
41°F |
6 mph
S
|
|
Monday
Oct 19
|
Mostly Sunny
|
68°F |
5 mph
S
|
|
Monday Night
Oct 19
|
Partly Cloudy
|
45°F |
1 mph
ESE
|
|
Tuesday
Oct 20
|
Mostly Sunny
|
73°F |
2 mph
SE
|
|
Tuesday Night
Oct 20
|
Mostly Clear
|
48°F |
2 mph
E
|
|
Wednesday
Oct 21
|
Sunny
|
75°F |
2 to 6 mph
SE
|
|
Wednesday Night
Oct 21
|
Mostly Clear
|
51°F |
3 mph
SE
|
|
Thursday
Oct 22
|
Sunny
|
75°F |
3 to 7 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Farmington.
