Arthur, IL Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Arthur, IL in one place.
Mostly sunny, with a high near 80. East wind 3 to 9 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: May 24, 2026 3:36 AM CDT.
The active forecast window currently covers May 25 to May 30, 2026 for Arthur, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 25 to May 30, 2026
- Latest sync
- May 24, 2026 3:36 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Arthur
Thursday looks like the warmest upcoming period in Arthur at 83 degrees F.
Friday Night is the coolest period ahead with temperatures near 57 degrees F.
The strongest winds are forecast for Saturday at about 10 to 14 mph ENE.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- May 24, 2026 3:36 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
Partly cloudy, with a low around 61. East wind around 7 mph.
A chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 80. East wind 6 to 9 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 10pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 66. Southeast wind around 7 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
Showers and thunderstorms likely. Mostly cloudy, with a high near 81. Chance of precipitation is 70%.
Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 65. Chance of precipitation is 70%.
A chance of showers and thunderstorms. Partly sunny, with a high near 83.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
A slight chance of rain showers before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 77.
A chance of showers and thunderstorms. Partly cloudy, with a low around 57.
A slight chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 74.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Memorial Day
May 25
|
Mostly Sunny
|
80°F |
3 to 9 mph
E
|
|
Monday Night
May 25
|
Partly Cloudy
|
61°F |
7 mph
E
|
|
Tuesday
May 26
|
Partly Sunny then Chance Showers And Thunderstorms
|
80°F |
6 to 9 mph
E
|
|
Tuesday Night
May 26
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
66°F |
7 mph
SE
|
|
Wednesday
May 27
|
Showers And Thunderstorms Likely
|
81°F |
7 mph
ESE
|
|
Wednesday Night
May 27
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
65°F |
6 mph
ENE
|
|
Thursday
May 28
|
Chance Showers And Thunderstorms
|
83°F |
5 to 8 mph
ENE
|
|
Thursday Night
May 28
|
Chance Showers And Thunderstorms
|
63°F |
8 mph
ENE
|
|
Friday
May 29
|
Chance Showers And Thunderstorms
|
77°F |
9 to 13 mph
ENE
|
|
Friday Night
May 29
|
Chance Showers And Thunderstorms
|
57°F |
12 mph
ENE
|
|
Saturday
May 30
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
74°F |
10 to 14 mph
ENE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Arthur.
