Preston, 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, IL in one place.
Patchy fog before 8am. Mostly sunny, with a high near 81. East wind 3 to 7 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: May 24, 2026 11:36 AM CDT.
The active forecast window currently covers May 25 to May 30, 2026 for Preston, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 25 to May 30, 2026
- Latest sync
- May 24, 2026 11:36 AM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Preston
Wednesday looks like the warmest upcoming period in Preston at 84 degrees F.
Saturday Night is the coolest period ahead with temperatures near 58 degrees F.
The strongest winds are forecast for Saturday at about 9 mph NE.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- May 24, 2026 11:36 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
A slight chance of rain showers after 1am. Partly cloudy, with a low around 62. East wind 2 to 6 mph. Chance of precipitation is 20%.
Rain showers likely before 10am, then showers and thunderstorms. Mostly cloudy, with a high near 80. East wind around 6 mph. Chance of precipitation is 80%.
Showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 80%.
A chance of rain showers before 7am, then a chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 50%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 65. 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 showers and thunderstorms likely. Mostly cloudy, with a low around 65. Chance of precipitation is 70%.
Rain showers likely before 7am, then showers and thunderstorms likely. Partly sunny, with a high near 80. Chance of precipitation is 60%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 78. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 58. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Memorial Day
May 25
|
Patchy Fog then Mostly Sunny
|
81°F |
3 to 7 mph
E
|
|
Monday Night
May 25
|
Partly Cloudy then Slight Chance Rain Showers
|
62°F |
2 to 6 mph
E
|
|
Tuesday
May 26
|
Showers And Thunderstorms
|
80°F |
6 mph
E
|
|
Tuesday Night
May 26
|
Showers And Thunderstorms
|
65°F |
5 mph
SE
|
|
Wednesday
May 27
|
Chance Showers And Thunderstorms
|
84°F |
5 mph
S
|
|
Wednesday Night
May 27
|
Chance Showers And Thunderstorms
|
65°F |
3 mph
SE
|
|
Thursday
May 28
|
Chance Showers And Thunderstorms
|
84°F |
3 mph
E
|
|
Thursday Night
May 28
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
65°F |
3 mph
E
|
|
Friday
May 29
|
Showers And Thunderstorms Likely
|
80°F |
3 to 7 mph
E
|
|
Friday Night
May 29
|
Showers And Thunderstorms Likely
|
60°F |
7 mph
NE
|
|
Saturday
May 30
|
Chance Rain Showers
|
78°F |
9 mph
NE
|
|
Saturday Night
May 30
|
Chance Showers And Thunderstorms then Partly Cloudy
|
58°F |
5 to 8 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Preston.