Houston, IL Weather Forecast
Local 7-day forecast
Isolated Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Houston, IL in one place.
Isolated showers and thunderstorms. Mostly sunny, with a high near 96. Heat index values as high as 105. South wind around 5 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for Houston, 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: Sep 15, 2026 3:26 PM CDT.
The active forecast window currently covers Sep 16 to Sep 21, 2026 for Houston, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 16 to Sep 21, 2026
- Latest sync
- Sep 15, 2026 3:26 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Houston
Wednesday looks like the warmest upcoming period in Houston at 96 degrees F.
Monday Night is the coolest period ahead with temperatures near 58 degrees F.
The strongest winds are forecast for Monday at about 7 to 10 mph N.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 15, 2026 3:26 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
Isolated showers and thunderstorms before 7pm. Mostly clear, with a low around 73. Heat index values as high as 101. South wind around 3 mph. Chance of precipitation is 20%.
Sunny, with a high near 96. West wind around 5 mph.
Mostly clear, with a low around 72.
Sunny, with a high near 94.
Mostly clear, with a low around 70.
Sunny, with a high near 94.
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69. Chance of precipitation is 20%.
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 62. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms. Partly sunny, with a high near 79. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 58. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 16
|
Isolated Showers And Thunderstorms
|
96°F |
5 mph
S
|
|
Wednesday Night
Sep 16
|
Isolated Showers And Thunderstorms then Mostly Clear
|
73°F |
3 mph
S
|
|
Thursday
Sep 17
|
Sunny
|
96°F |
5 mph
W
|
|
Thursday Night
Sep 17
|
Mostly Clear
|
72°F |
1 mph
NE
|
|
Friday
Sep 18
|
Sunny
|
94°F |
3 mph
S
|
|
Friday Night
Sep 18
|
Mostly Clear
|
70°F |
5 mph
SE
|
|
Saturday
Sep 19
|
Sunny
|
94°F |
5 to 9 mph
SW
|
|
Saturday Night
Sep 19
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
69°F |
6 mph
SW
|
|
Sunday
Sep 20
|
Chance Showers And Thunderstorms
|
86°F |
5 to 9 mph
W
|
|
Sunday Night
Sep 20
|
Chance Showers And Thunderstorms
|
62°F |
8 mph
N
|
|
Monday
Sep 21
|
Slight Chance Showers And Thunderstorms
|
79°F |
7 to 10 mph
N
|
|
Monday Night
Sep 21
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
58°F |
5 to 8 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Houston.