Washington, IL Weather Forecast
Local 7-day forecast
Partly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Washington, IL in one place.
Partly sunny, with a high near 85. East wind around 10 mph, with gusts as high as 17 mph.
Local Weather Overview
This forecast page for Washington, 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 4:12 PM CDT.
The active forecast window currently covers May 30 to Jun 5, 2026 for Washington, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 30 to Jun 5, 2026
- Latest sync
- May 30, 2026 4:12 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Washington
Friday looks like the warmest upcoming period in Washington at 87 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 53 degrees F.
The strongest winds are forecast for Friday at about 9 to 14 mph SSW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- May 30, 2026 4:12 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 57. East wind around 13 mph, with gusts as high as 22 mph.
Partly sunny, with a high near 80. Southeast wind 6 to 9 mph, with gusts as high as 20 mph.
A slight chance of rain showers after 3am. Partly cloudy, with a low around 59. East southeast wind around 6 mph.
A slight chance of rain showers before 4pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 82. East northeast wind around 7 mph.
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 55. Northeast wind around 7 mph.
Sunny, with a high near 82. Northeast wind around 9 mph.
Clear, with a low around 53.
Sunny, with a high near 83.
Mostly clear, with a low around 56.
Sunny, with a high near 85.
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 87.
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
|
Partly Sunny
|
85°F |
10 mph
E
|
|
Tonight
May 30
|
Mostly Cloudy
|
57°F |
13 mph
E
|
|
Sunday
May 31
|
Partly Sunny
|
80°F |
6 to 9 mph
SE
|
|
Sunday Night
May 31
|
Partly Cloudy then Slight Chance Rain Showers
|
59°F |
6 mph
ESE
|
|
Monday
Jun 1
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
82°F |
7 mph
ENE
|
|
Monday Night
Jun 1
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
55°F |
7 mph
NE
|
|
Tuesday
Jun 2
|
Sunny
|
82°F |
9 mph
NE
|
|
Tuesday Night
Jun 2
|
Clear
|
53°F |
3 to 7 mph
ENE
|
|
Wednesday
Jun 3
|
Sunny
|
83°F |
5 mph
SE
|
|
Wednesday Night
Jun 3
|
Mostly Clear
|
56°F |
5 mph
S
|
|
Thursday
Jun 4
|
Sunny
|
85°F |
5 to 12 mph
SSW
|
|
Thursday Night
Jun 4
|
Partly Cloudy
|
62°F |
9 mph
SSW
|
|
Friday
Jun 5
|
Chance Showers And Thunderstorms
|
87°F |
9 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 Washington.
