Half Day, IL Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Half Day, IL in one place.
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Heat index values as high as 100. South southwest wind 5 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Half Day, 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 6:37 PM CDT.
The active forecast window currently covers Jun 10 to Jun 15, 2026 for Half Day, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 10 to Jun 15, 2026
- Latest sync
- Jun 9, 2026 6:37 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Half Day
Wednesday looks like the warmest upcoming period in Half Day at 92 degrees F.
Monday Night is the coolest period ahead with temperatures near 54 degrees F.
The strongest winds are forecast for Wednesday at about 5 to 20 mph SSW.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 9, 2026 6:37 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
Showers and thunderstorms likely before 4am. Mostly cloudy, with a low around 72. Heat index values as high as 97. Southwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.
Showers and thunderstorms after 1pm. Partly sunny, with a high near 89. South southwest wind 5 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Showers and thunderstorms before 1am. Mostly cloudy, with a low around 61. Chance of precipitation is 80%.
Sunny, with a high near 78.
Mostly clear, with a low around 61.
Sunny, with a high near 84.
Showers and thunderstorms likely after 7pm. Partly cloudy, with a low around 62.
Rain showers likely. Partly sunny, with a high near 76.
A slight chance of rain showers. Mostly cloudy, with a low around 56.
A slight chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 74.
A slight chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 54.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Jun 10
|
Chance Showers And Thunderstorms
|
92°F |
5 to 20 mph
SSW
|
|
Wednesday Night
Jun 10
|
Showers And Thunderstorms Likely
|
72°F |
10 to 20 mph
SW
|
|
Thursday
Jun 11
|
Partly Sunny then Showers And Thunderstorms
|
89°F |
5 to 20 mph
SSW
|
|
Thursday Night
Jun 11
|
Showers And Thunderstorms
|
61°F |
10 to 20 mph
WSW
|
|
Friday
Jun 12
|
Sunny
|
78°F |
10 to 15 mph
W
|
|
Friday Night
Jun 12
|
Mostly Clear
|
61°F |
5 to 15 mph
WSW
|
|
Saturday
Jun 13
|
Sunny
|
84°F |
5 to 15 mph
SW
|
|
Saturday Night
Jun 13
|
Showers And Thunderstorms Likely
|
62°F |
5 to 10 mph
W
|
|
Sunday
Jun 14
|
Rain Showers Likely
|
76°F |
5 to 10 mph
N
|
|
Sunday Night
Jun 14
|
Slight Chance Rain Showers
|
56°F |
5 to 10 mph
N
|
|
Monday
Jun 15
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
74°F |
5 to 10 mph
NW
|
|
Monday Night
Jun 15
|
Slight Chance Showers And Thunderstorms
|
54°F |
0 to 10 mph
WNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Half Day.