Arthur, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Arthur, IL in one place.
Sunny, with a high near 81. Southeast wind around 5 mph.
Local Weather Overview
This forecast page for Arthur, 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: Aug 25, 2026 11:32 AM CDT.
The active forecast window currently covers Aug 25 to Aug 31, 2026 for Arthur, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 25 to Aug 31, 2026
- Latest sync
- Aug 25, 2026 11:32 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Arthur
Monday looks like the warmest upcoming period in Arthur at 92 degrees F.
Friday Night is the coolest period ahead with temperatures near 60 degrees F.
The strongest winds are forecast for Sunday at about 8 to 13 mph S.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 25, 2026 11:32 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
Partly cloudy, with a low around 61. Southeast wind around 3 mph.
A chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 87. South southwest wind 3 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of showers and thunderstorms before 1am. Mostly clear, with a low around 64. West wind 3 to 7 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
Sunny, with a high near 84. North northwest wind 3 to 9 mph.
Mostly clear, with a low around 61. North northeast wind 2 to 8 mph.
Sunny, with a high near 84. North northeast wind 2 to 6 mph.
Mostly clear, with a low around 60.
Sunny, with a high near 86.
Partly cloudy, with a low around 65.
Mostly sunny, with a high near 90.
A slight chance of rain showers after 1am. Partly cloudy, with a low around 71.
A slight chance of rain showers before 7am. Mostly sunny, with a high near 92.
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Aug 25
|
Sunny
|
81°F |
5 mph
SE
|
|
Tonight
Aug 25
|
Partly Cloudy
|
61°F |
3 mph
SE
|
|
Wednesday
Aug 26
|
Mostly Sunny then Chance Showers And Thunderstorms
|
87°F |
3 to 10 mph
SSW
|
|
Wednesday Night
Aug 26
|
Chance Showers And Thunderstorms
|
64°F |
3 to 7 mph
W
|
|
Thursday
Aug 27
|
Sunny
|
84°F |
3 to 9 mph
NNW
|
|
Thursday Night
Aug 27
|
Mostly Clear
|
61°F |
2 to 8 mph
NNE
|
|
Friday
Aug 28
|
Sunny
|
84°F |
2 to 6 mph
NNE
|
|
Friday Night
Aug 28
|
Mostly Clear
|
60°F |
5 mph
ENE
|
|
Saturday
Aug 29
|
Sunny
|
86°F |
2 to 6 mph
SE
|
|
Saturday Night
Aug 29
|
Partly Cloudy
|
65°F |
7 mph
SE
|
|
Sunday
Aug 30
|
Mostly Sunny
|
90°F |
8 to 13 mph
S
|
|
Sunday Night
Aug 30
|
Partly Cloudy then Slight Chance Rain Showers
|
71°F |
9 mph
S
|
|
Monday
Aug 31
|
Slight Chance Rain Showers then Mostly Sunny
|
92°F |
12 mph
SSW
|
|
Monday Night
Aug 31
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
72°F |
7 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Arthur.
