Preston, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Preston, IL in one place.
Sunny, with a high near 92. Heat index values as high as 103. South wind 6 to 13 mph.
Local Weather Overview
This forecast page for Preston, 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: Jun 9, 2026 2:29 AM CDT.
The active forecast window currently covers Jun 10 to Jun 15, 2026 for Preston, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 10 to Jun 15, 2026
- Latest sync
- Jun 9, 2026 2:29 AM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Preston
Wednesday looks like the warmest upcoming period in Preston at 92 degrees F.
Sunday Night is the coolest period ahead with temperatures near 62 degrees F.
The strongest winds are forecast for Thursday at about 8 to 15 mph S.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 9, 2026 2:29 AM 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
Mostly clear, with a low around 73. South wind 8 to 13 mph.
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 68. Chance of precipitation is 70%.
A chance of showers and thunderstorms before 7am. Partly sunny, with a high near 85. Chance of precipitation is 40%.
A slight chance of rain showers after 1am. Partly cloudy, with a low around 64. Chance of precipitation is 20%.
A slight chance of rain showers before 7am, then 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 66. Chance of precipitation is 50%.
A chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 62. Chance of precipitation is 40%.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Jun 10
|
Sunny
|
92°F |
6 to 13 mph
S
|
|
Wednesday Night
Jun 10
|
Mostly Clear
|
73°F |
8 to 13 mph
S
|
|
Thursday
Jun 11
|
Mostly Sunny then Chance Showers And Thunderstorms
|
91°F |
8 to 15 mph
S
|
|
Thursday Night
Jun 11
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
68°F |
6 to 15 mph
W
|
|
Friday
Jun 12
|
Chance Showers And Thunderstorms then Partly Sunny
|
85°F |
6 mph
NW
|
|
Friday Night
Jun 12
|
Partly Cloudy then Slight Chance Rain Showers
|
64°F |
3 mph
E
|
|
Saturday
Jun 13
|
Chance Showers And Thunderstorms
|
86°F |
5 mph
S
|
|
Saturday Night
Jun 13
|
Chance Showers And Thunderstorms
|
66°F |
5 mph
SW
|
|
Sunday
Jun 14
|
Chance Showers And Thunderstorms
|
84°F |
5 to 8 mph
N
|
|
Sunday Night
Jun 14
|
Chance Showers And Thunderstorms
|
62°F |
5 to 8 mph
NE
|
|
Monday
Jun 15
|
Chance Rain Showers
|
81°F |
7 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Preston.