Preston Heights, IL Weather Forecast
Local 7-day forecast
Patchy Fog then Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Preston Heights, IL in one place.
Patchy fog before 8am. Mostly sunny, with a high near 81. East northeast wind 0 to 5 mph.
Local Weather Overview
This forecast page for Preston Heights, 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: Aug 2, 2026 6:34 PM CDT.
The active forecast window currently covers Aug 3 to Aug 8, 2026 for Preston Heights, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 3 to Aug 8, 2026
- Latest sync
- Aug 2, 2026 6:34 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Preston Heights
Saturday looks like the warmest upcoming period in Preston Heights at 84 degrees F.
Monday Night is the coolest period ahead with temperatures near 60 degrees F.
The strongest winds are forecast for Monday at about 0 to 5 mph ENE.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 2, 2026 6:34 PM CDT
- Coverage
- 6 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
Mostly clear, with a low around 60. Southeast wind 0 to 5 mph.
Sunny, with a high near 83. South wind 0 to 5 mph, with gusts as high as 15 mph.
Mostly clear, with a low around 63.
A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 81.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 64.
Showers and thunderstorms likely before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 79.
A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 63.
Mostly sunny, with a high near 82.
A slight chance of rain showers after 7pm. Partly cloudy, with a low around 65.
A slight chance of rain showers before 7am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 84.
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
Aug 3
|
Patchy Fog then Mostly Sunny
|
81°F |
0 to 5 mph
ENE
|
|
Monday Night
Aug 3
|
Mostly Clear
|
60°F |
0 to 5 mph
SE
|
|
Tuesday
Aug 4
|
Sunny
|
83°F |
0 to 5 mph
S
|
|
Tuesday Night
Aug 4
|
Mostly Clear
|
63°F |
5 mph
S
|
|
Wednesday
Aug 5
|
Partly Sunny then Chance Showers And Thunderstorms
|
81°F |
0 to 5 mph
SSW
|
|
Wednesday Night
Aug 5
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
64°F |
0 to 5 mph
S
|
|
Thursday
Aug 6
|
Showers And Thunderstorms Likely
|
79°F |
0 to 5 mph
W
|
|
Thursday Night
Aug 6
|
Chance Showers And Thunderstorms
|
63°F |
0 to 5 mph
ESE
|
|
Friday
Aug 7
|
Mostly Sunny
|
82°F |
0 to 5 mph
SSE
|
|
Friday Night
Aug 7
|
Slight Chance Rain Showers
|
65°F |
0 to 5 mph
SSW
|
|
Saturday
Aug 8
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
84°F |
0 to 5 mph
SW
|
|
Saturday Night
Aug 8
|
Slight Chance Showers And Thunderstorms
|
67°F |
5 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Preston Heights.