Harvey, IL Weather Forecast
Local 7-day forecast
Showers And Thunderstorms Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Harvey, IL in one place.
Showers and thunderstorms likely. Mostly cloudy, with a high near 78.
Local Weather Overview
This forecast page for Harvey, 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 10, 2026 12:45 AM CDT.
The active forecast window currently covers Apr 13 to Apr 16, 2026 for Harvey, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 13 to Apr 16, 2026
- Latest sync
- Apr 10, 2026 12:45 AM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Harvey
Tuesday looks like the warmest upcoming period in Harvey at 82 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 52 degrees F.
The strongest winds are forecast for Wednesday at about 15 to 20 mph SW.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 10, 2026 12:45 AM CDT
- Coverage
- 4 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KLOT
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 before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Showers and thunderstorms likely. Mostly cloudy, with a high near 82.
Showers and thunderstorms. Mostly cloudy, with a low around 61.
Showers and thunderstorms likely. Mostly cloudy, with a high near 74.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 52.
A chance of rain showers. Mostly sunny, with a high near 74.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
Apr 13
|
Showers And Thunderstorms Likely
|
78°F |
15 mph
SW
|
|
Monday Night
Apr 13
|
Chance Showers And Thunderstorms
|
64°F |
15 mph
SSW
|
|
Tuesday
Apr 14
|
Showers And Thunderstorms Likely
|
82°F |
15 mph
SSW
|
|
Tuesday Night
Apr 14
|
Showers And Thunderstorms
|
61°F |
15 mph
SSW
|
|
Wednesday
Apr 15
|
Showers And Thunderstorms Likely
|
74°F |
15 to 20 mph
SW
|
|
Wednesday Night
Apr 15
|
Chance Showers And Thunderstorms
|
52°F |
10 to 15 mph
SW
|
|
Thursday
Apr 16
|
Chance Rain Showers
|
74°F |
10 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Harvey.
