Harris, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Harris, IL in one place.
Sunny, with a high near 91. North wind around 2 mph.
Local Weather Overview
This forecast page for Harris, 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: Jul 14, 2026 6:16 PM CDT.
The active forecast window currently covers Jul 15 to Jul 20, 2026 for Harris, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 15 to Jul 20, 2026
- Latest sync
- Jul 14, 2026 6:16 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Harris
Wednesday looks like the warmest upcoming period in Harris at 91 degrees F.
Sunday Night is the coolest period ahead with temperatures near 69 degrees F.
The strongest winds are forecast for Monday at about 6 to 13 mph WSW.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 14, 2026 6:16 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KIND
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 71. West southwest wind around 1 mph.
A chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 91. South southwest wind around 2 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 72. South wind around 2 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms between 7am and 1pm, then showers and thunderstorms. Mostly sunny, with a high near 88. Southwest wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms. Partly cloudy, with a low around 71. Chance of precipitation is 80%.
A chance of showers and thunderstorms. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 1am. Mostly clear, with a low around 71.
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 88.
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 69.
A slight chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 88.
A slight chance of showers and thunderstorms. Mostly clear, with a low around 70.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Jul 15
|
Sunny
|
91°F |
2 mph
N
|
|
Wednesday Night
Jul 15
|
Mostly Clear
|
71°F |
1 mph
WSW
|
|
Thursday
Jul 16
|
Mostly Sunny then Chance Showers And Thunderstorms
|
91°F |
2 mph
SSW
|
|
Thursday Night
Jul 16
|
Chance Showers And Thunderstorms then Mostly Clear
|
72°F |
2 mph
S
|
|
Friday
Jul 17
|
Chance Showers And Thunderstorms
|
88°F |
5 mph
SW
|
|
Friday Night
Jul 17
|
Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
|
71°F |
5 mph
SW
|
|
Saturday
Jul 18
|
Chance Showers And Thunderstorms
|
89°F |
6 to 12 mph
WSW
|
|
Saturday Night
Jul 18
|
Chance Showers And Thunderstorms
|
71°F |
6 to 9 mph
W
|
|
Sunday
Jul 19
|
Sunny then Slight Chance Showers And Thunderstorms
|
88°F |
8 mph
WNW
|
|
Sunday Night
Jul 19
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
69°F |
3 to 7 mph
SW
|
|
Monday
Jul 20
|
Slight Chance Showers And Thunderstorms
|
88°F |
6 to 13 mph
WSW
|
|
Monday Night
Jul 20
|
Slight Chance Showers And Thunderstorms
|
70°F |
9 mph
WSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Harris.