Detroit, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Detroit, IL in one place.
Sunny, with a high near 91. Heat index values as high as 100. West wind around 9 mph.
Local Weather Overview
This forecast page for Detroit, 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 17, 2026 7:46 PM CDT.
The active forecast window currently covers Jul 18 to Jul 23, 2026 for Detroit, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 18 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 7:46 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Detroit
Monday looks like the warmest upcoming period in Detroit at 93 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 61 degrees F.
The strongest winds are forecast for Tuesday at about 7 to 13 mph NW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 17, 2026 7:46 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KLSX
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 8pm and 1am. Partly cloudy, with a low around 73. Heat index values as high as 101. West wind 2 to 6 mph. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Northeast wind around 5 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 70. Chance of precipitation is 20%.
Sunny, with a high near 93.
Mostly clear, with a low around 76.
Sunny, with a high near 92.
Mostly clear, with a low around 65.
Sunny, with a high near 83.
Mostly clear, with a low around 61.
Mostly sunny, with a high near 83.
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Jul 18
|
Sunny
|
91°F |
9 mph
W
|
|
Saturday Night
Jul 18
|
Chance Showers And Thunderstorms
|
73°F |
2 to 6 mph
W
|
|
Sunday
Jul 19
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
88°F |
5 mph
NE
|
|
Sunday Night
Jul 19
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
70°F |
3 mph
SE
|
|
Monday
Jul 20
|
Sunny
|
93°F |
3 to 7 mph
S
|
|
Monday Night
Jul 20
|
Mostly Clear
|
76°F |
5 to 8 mph
SW
|
|
Tuesday
Jul 21
|
Sunny
|
92°F |
7 to 13 mph
NW
|
|
Tuesday Night
Jul 21
|
Mostly Clear
|
65°F |
6 to 12 mph
NW
|
|
Wednesday
Jul 22
|
Sunny
|
83°F |
8 mph
N
|
|
Wednesday Night
Jul 22
|
Mostly Clear
|
61°F |
0 to 7 mph
NE
|
|
Thursday
Jul 23
|
Mostly Sunny
|
83°F |
1 to 5 mph
E
|
|
Thursday Night
Jul 23
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
63°F |
3 mph
E
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Detroit.