Patterson, IL Weather Forecast
Local 7-day forecast
Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Patterson, IL in one place.
Showers and thunderstorms before 8am, then patchy fog and showers and thunderstorms between 8am and 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 78. South wind around 9 mph. Chance of precipitation is 90%.
Local Weather Overview
This forecast page for Patterson, 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 14, 2026 8:37 AM CDT.
The active forecast window currently covers Oct 15 to Oct 20, 2026 for Patterson, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 15 to Oct 20, 2026
- Latest sync
- Oct 14, 2026 8:37 AM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Patterson
Thursday looks like the warmest upcoming period in Patterson at 78 degrees F.
Friday Night is the coolest period ahead with temperatures near 37 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 14, 2026 8:37 AM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KLSX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms likely before 1am. Mostly cloudy, with a low around 46. West wind 7 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 70%.
Mostly sunny, with a high near 59. Northwest wind 17 to 21 mph, with gusts as high as 35 mph.
Mostly clear, with a low around 37.
Sunny, with a high near 62.
Clear, with a low around 37.
Sunny, with a high near 69.
Partly cloudy, with a low around 44.
Partly sunny, with a high near 73.
Partly cloudy, with a low around 47.
Sunny, with a high near 77.
Mostly clear, with a low around 51.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Oct 15
|
Showers And Thunderstorms
|
78°F |
9 mph
S
|
|
Thursday Night
Oct 15
|
Showers And Thunderstorms Likely
|
46°F |
7 to 17 mph
W
|
|
Friday
Oct 16
|
Mostly Sunny
|
59°F |
17 to 21 mph
NW
|
|
Friday Night
Oct 16
|
Mostly Clear
|
37°F |
2 to 15 mph
N
|
|
Saturday
Oct 17
|
Sunny
|
62°F |
1 mph
SE
|
|
Saturday Night
Oct 17
|
Clear
|
37°F |
0 to 3 mph
S
|
|
Sunday
Oct 18
|
Sunny
|
69°F |
3 to 8 mph
S
|
|
Sunday Night
Oct 18
|
Partly Cloudy
|
44°F |
6 mph
S
|
|
Monday
Oct 19
|
Partly Sunny
|
73°F |
5 mph
S
|
|
Monday Night
Oct 19
|
Partly Cloudy
|
47°F |
2 mph
SE
|
|
Tuesday
Oct 20
|
Sunny
|
77°F |
1 to 5 mph
SE
|
|
Tuesday Night
Oct 20
|
Mostly Clear
|
51°F |
3 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Patterson.