Smithton, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Smithton, IL in one place.
Sunny, with a high near 78. Southwest wind around 8 mph.
Local Weather Overview
This forecast page for Smithton, 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 20, 2026 10:43 AM CDT.
The active forecast window currently covers Apr 22 to Apr 26, 2026 for Smithton, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 22 to Apr 26, 2026
- Latest sync
- Apr 20, 2026 10:43 AM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Smithton
Thursday looks like the warmest upcoming period in Smithton at 80 degrees F.
Saturday Night is the coolest period ahead with temperatures near 51 degrees F.
The strongest winds are forecast for Thursday at about 6 to 17 mph S.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 20, 2026 10:43 AM CDT
- Coverage
- 5 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 56.
Mostly sunny, with a high near 80.
A slight chance of showers and thunderstorms between 7pm and 1am, then showers and thunderstorms likely. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Showers and thunderstorms. Mostly cloudy, with a high near 74. Chance of precipitation is 80%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 52. Chance of precipitation is 60%.
A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 72. Chance of precipitation is 40%.
A slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 51. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Mostly sunny, with a high near 71. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 53. Chance of precipitation is 40%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Apr 22
|
Sunny
|
78°F |
8 mph
SW
|
|
Wednesday Night
Apr 22
|
Mostly Clear
|
56°F |
7 mph
S
|
|
Thursday
Apr 23
|
Mostly Sunny
|
80°F |
6 to 17 mph
S
|
|
Thursday Night
Apr 23
|
Slight Chance Showers And Thunderstorms
|
62°F |
10 to 15 mph
S
|
|
Friday
Apr 24
|
Showers And Thunderstorms
|
74°F |
10 mph
SW
|
|
Friday Night
Apr 24
|
Showers And Thunderstorms Likely
|
52°F |
6 to 9 mph
NW
|
|
Saturday
Apr 25
|
Chance Showers And Thunderstorms
|
72°F |
6 to 9 mph
N
|
|
Saturday Night
Apr 25
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
51°F |
7 mph
N
|
|
Sunday
Apr 26
|
Chance Showers And Thunderstorms
|
71°F |
8 mph
NE
|
|
Sunday Night
Apr 26
|
Chance Showers And Thunderstorms
|
53°F |
7 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Smithton.
