Downs, IL Weather Forecast
Local 7-day forecast
Patchy Fog then Partly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Downs, IL in one place.
Patchy fog and a slight chance of showers and thunderstorms before 11am. Partly sunny, with a high near 89. South wind 5 to 8 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Downs, 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: Sep 17, 2026 8:39 AM CDT.
The active forecast window currently covers Sep 17 to Sep 23, 2026 for Downs, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 17 to Sep 23, 2026
- Latest sync
- Sep 17, 2026 8:39 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Downs
Saturday looks like the warmest upcoming period in Downs at 90 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 56 degrees F.
The strongest winds are forecast for Sunday Night at about 12 to 18 mph NE.
Precipitation is mentioned in 13 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 17, 2026 8:39 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 after 8pm. Partly cloudy, with a low around 67. Northeast wind around 8 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms before noon. Partly sunny, with a high near 84. East northeast wind around 9 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. East southeast wind around 13 mph, with gusts as high as 17 mph.
A slight chance of rain showers before 7am. Partly sunny, with a high near 90. South southwest wind around 13 mph, with gusts as high as 18 mph.
A chance of showers and thunderstorms between 7pm and 1am, then showers and thunderstorms likely. Mostly cloudy, with a low around 68. West southwest wind 6 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Showers and thunderstorms likely. Mostly cloudy, with a high near 81. North wind 7 to 15 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7am, then showers and thunderstorms likely. Mostly cloudy, with a high near 73. Chance of precipitation is 60%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57.
A slight chance of rain showers before 1pm. Partly sunny, with a high near 73.
A slight chance of rain showers after 1am. Partly cloudy, with a low around 56.
A slight chance of rain showers before 7am. Mostly sunny, with a high near 76.
Partly cloudy, with a low around 58.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Sep 17
|
Patchy Fog then Partly Sunny
|
89°F |
5 to 8 mph
S
|
|
Tonight
Sep 17
|
Chance Showers And Thunderstorms
|
67°F |
8 mph
NE
|
|
Friday
Sep 18
|
Chance Showers And Thunderstorms then Partly Sunny
|
84°F |
9 mph
ENE
|
|
Friday Night
Sep 18
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
68°F |
13 mph
ESE
|
|
Saturday
Sep 19
|
Slight Chance Rain Showers then Partly Sunny
|
90°F |
13 mph
SSW
|
|
Saturday Night
Sep 19
|
Chance Showers And Thunderstorms
|
68°F |
6 to 10 mph
WSW
|
|
Sunday
Sep 20
|
Showers And Thunderstorms Likely
|
81°F |
7 to 15 mph
N
|
|
Sunday Night
Sep 20
|
Chance Showers And Thunderstorms
|
61°F |
12 to 18 mph
NE
|
|
Monday
Sep 21
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
73°F |
13 to 16 mph
ENE
|
|
Monday Night
Sep 21
|
Chance Showers And Thunderstorms
|
57°F |
12 to 18 mph
NE
|
|
Tuesday
Sep 22
|
Slight Chance Rain Showers
|
73°F |
14 mph
NE
|
|
Tuesday Night
Sep 22
|
Partly Cloudy then Slight Chance Rain Showers
|
56°F |
7 to 13 mph
NE
|
|
Wednesday
Sep 23
|
Slight Chance Rain Showers then Mostly Sunny
|
76°F |
7 to 10 mph
NE
|
|
Wednesday Night
Sep 23
|
Partly Cloudy
|
58°F |
6 to 10 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Downs.