Saint Elmo, IL Weather Forecast
Local 7-day forecast
Patchy Fog then Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Saint Elmo, IL in one place.
Patchy fog before 9am. Mostly sunny, with a high near 82. Northwest wind around 1 mph.
Local Weather Overview
This forecast page for Saint Elmo, 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 23, 2026 6:28 PM CDT.
The active forecast window currently covers Aug 24 to Aug 29, 2026 for Saint Elmo, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 24 to Aug 29, 2026
- Latest sync
- Aug 23, 2026 6:28 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Saint Elmo
Wednesday looks like the warmest upcoming period in Saint Elmo at 87 degrees F.
Monday Night is the coolest period ahead with temperatures near 59 degrees F.
The strongest winds are forecast for Thursday at about 2 to 8 mph NW.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 23, 2026 6:28 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KVWX
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 59. East wind around 2 mph.
Sunny, with a high near 84. East wind around 5 mph.
Partly cloudy, with a low around 63.
Mostly sunny, with a high near 87.
A chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 65. Chance of precipitation is 30%.
Sunny, with a high near 86.
Mostly clear, with a low around 63.
Sunny, with a high near 85.
Mostly clear, with a low around 64.
Mostly sunny, with a high near 86.
A slight chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Some of the storms could produce heavy rain. Partly cloudy, with a low around 67. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
Aug 24
|
Patchy Fog then Mostly Sunny
|
82°F |
1 mph
NW
|
|
Monday Night
Aug 24
|
Mostly Clear
|
59°F |
2 mph
E
|
|
Tuesday
Aug 25
|
Sunny
|
84°F |
5 mph
E
|
|
Tuesday Night
Aug 25
|
Partly Cloudy
|
63°F |
2 mph
SE
|
|
Wednesday
Aug 26
|
Mostly Sunny
|
87°F |
1 to 6 mph
S
|
|
Wednesday Night
Aug 26
|
Chance Showers And Thunderstorms
|
65°F |
3 mph
W
|
|
Thursday
Aug 27
|
Sunny
|
86°F |
2 to 8 mph
NW
|
|
Thursday Night
Aug 27
|
Mostly Clear
|
63°F |
1 to 6 mph
N
|
|
Friday
Aug 28
|
Sunny
|
85°F |
0 to 3 mph
N
|
|
Friday Night
Aug 28
|
Mostly Clear
|
64°F |
2 mph
E
|
|
Saturday
Aug 29
|
Mostly Sunny
|
86°F |
2 to 6 mph
SE
|
|
Saturday Night
Aug 29
|
Slight Chance Showers And Thunderstorms
|
67°F |
5 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Saint Elmo.