Washington, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Washington, IL in one place.
Sunny, with a high near 86. West southwest wind 6 to 12 mph, with gusts as high as 20 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: Oct 12, 2026 12:16 AM CDT.
The active forecast window currently covers Oct 13 to Oct 18, 2026 for Washington, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 13 to Oct 18, 2026
- Latest sync
- Oct 12, 2026 12:16 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Washington
Tuesday looks like the warmest upcoming period in Washington at 86 degrees F.
Saturday Night is the coolest period ahead with temperatures near 37 degrees F.
The strongest winds are forecast for Friday at about 18 to 24 mph NW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 12, 2026 12:16 AM CDT
- Coverage
- 6 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 between 7pm and 1am, then showers and thunderstorms. Partly cloudy, with a low around 65. North wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Rain showers. Mostly cloudy, with a high near 75. North northeast wind 6 to 9 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
A chance of rain showers. Mostly cloudy, with a low around 57. Northeast wind around 12 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of rain showers before 7am, then showers and thunderstorms. Mostly cloudy, with a high near 70. Chance of precipitation is 80%.
Showers and thunderstorms. Mostly cloudy, with a low around 51. Chance of precipitation is 80%.
A slight chance of rain showers before 7am. Partly sunny, with a high near 61.
Partly cloudy, with a low around 38.
Sunny, with a high near 56.
Clear, with a low around 37.
Sunny, with a high near 63.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Oct 13
|
Sunny
|
86°F |
6 to 12 mph
WSW
|
|
Tuesday Night
Oct 13
|
Chance Showers And Thunderstorms
|
65°F |
5 mph
N
|
|
Wednesday
Oct 14
|
Rain Showers
|
75°F |
6 to 9 mph
NNE
|
|
Wednesday Night
Oct 14
|
Chance Rain Showers
|
57°F |
12 mph
NE
|
|
Thursday
Oct 15
|
Showers And Thunderstorms
|
70°F |
12 mph
E
|
|
Thursday Night
Oct 15
|
Showers And Thunderstorms
|
51°F |
10 to 18 mph
NNW
|
|
Friday
Oct 16
|
Slight Chance Rain Showers then Partly Sunny
|
61°F |
18 to 24 mph
NW
|
|
Friday Night
Oct 16
|
Partly Cloudy
|
38°F |
12 to 22 mph
NNW
|
|
Saturday
Oct 17
|
Sunny
|
56°F |
5 to 9 mph
NNW
|
|
Saturday Night
Oct 17
|
Clear
|
37°F |
5 mph
SW
|
|
Sunday
Oct 18
|
Sunny
|
63°F |
5 to 14 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Washington.
