Arlington, IL Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Arlington, IL in one place.
Mostly sunny, with a high near 81.
Local Weather Overview
This forecast page for Arlington, 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: Apr 14, 2026 8:36 PM CDT.
The active forecast window currently covers Apr 17 to Apr 21, 2026 for Arlington, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 17 to Apr 21, 2026
- Latest sync
- Apr 14, 2026 8:36 PM CDT
- Forecast office
- DVN
- Source
- NOAA / NWS
Daily Outlook
This Week in Arlington
Friday looks like the warmest upcoming period in Arlington at 81 degrees F.
Sunday Night is the coolest period ahead with temperatures near 34 degrees F.
The strongest winds are forecast for Saturday at about 15 to 20 mph SW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 14, 2026 8:36 PM CDT
- Coverage
- 5 days
- Time zone
- America/Chicago
- Forecast office
- DVN
- Radar station
- KLOT
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms after 7pm. Mostly cloudy, with a low around 52. Chance of precipitation is 90%.
Showers and thunderstorms. Mostly cloudy, with a high near 64. Chance of precipitation is 90%.
A chance of rain showers before 1am. Partly cloudy, with a low around 35. Chance of precipitation is 30%.
Sunny, with a high near 53.
Mostly clear, with a low around 34.
Sunny, with a high near 60.
Mostly clear, with a low around 41.
Mostly sunny, with a high near 68.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Apr 17
|
Mostly Sunny
|
81°F |
5 to 15 mph
SE
|
|
Friday Night
Apr 17
|
Showers And Thunderstorms
|
52°F |
15 mph
S
|
|
Saturday
Apr 18
|
Showers And Thunderstorms
|
64°F |
15 to 20 mph
SW
|
|
Saturday Night
Apr 18
|
Chance Rain Showers
|
35°F |
15 to 20 mph
W
|
|
Sunday
Apr 19
|
Sunny
|
53°F |
15 to 20 mph
W
|
|
Sunday Night
Apr 19
|
Mostly Clear
|
34°F |
5 to 15 mph
NW
|
|
Monday
Apr 20
|
Sunny
|
60°F |
10 mph
SE
|
|
Monday Night
Apr 20
|
Mostly Clear
|
41°F |
10 mph
SE
|
|
Tuesday
Apr 21
|
Mostly Sunny
|
68°F |
10 to 15 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Arlington.