Gillespie, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Gillespie, IL in one place.
Sunny, with a high near 93. Southwest wind 6 to 10 mph.
Local Weather Overview
This forecast page for Gillespie, 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: Oct 12, 2026 1:51 PM CDT.
The active forecast window currently covers Oct 13 to Oct 18, 2026 for Gillespie, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 13 to Oct 18, 2026
- Latest sync
- Oct 12, 2026 1:51 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Gillespie
Tuesday looks like the warmest upcoming period in Gillespie at 93 degrees F.
Saturday Night is the coolest period ahead with temperatures near 34 degrees F.
The strongest winds are forecast for Friday at about 18 to 22 mph NW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 12, 2026 1:51 PM 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 chance of showers and thunderstorms between midnight and 4am, then showers and thunderstorms likely. Partly cloudy, with a low around 69. Southwest wind 3 to 7 mph. Chance of precipitation is 60%.
Showers and thunderstorms. Mostly cloudy, with a high near 79. West wind around 3 mph. Chance of precipitation is 90%.
Showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 80%.
Showers and thunderstorms. Mostly cloudy, with a high near 79. Chance of precipitation is 90%.
Showers and thunderstorms before 1am, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 48. Chance of precipitation is 80%.
A slight chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 62. Chance of precipitation is 20%.
Mostly clear, with a low around 35.
Sunny, with a high near 61.
Clear, with a low around 34.
Sunny, with a high near 68.
Mostly clear, with a low around 41.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Oct 13
|
Sunny
|
93°F |
6 to 10 mph
SW
|
|
Tuesday Night
Oct 13
|
Partly Cloudy then Chance Showers And Thunderstorms
|
69°F |
3 to 7 mph
SW
|
|
Wednesday
Oct 14
|
Showers And Thunderstorms
|
79°F |
3 mph
W
|
|
Wednesday Night
Oct 14
|
Showers And Thunderstorms
|
62°F |
3 mph
NE
|
|
Thursday
Oct 15
|
Showers And Thunderstorms
|
79°F |
7 mph
S
|
|
Thursday Night
Oct 15
|
Showers And Thunderstorms
|
48°F |
7 to 17 mph
NW
|
|
Friday
Oct 16
|
Slight Chance Showers And Thunderstorms then Mostly Sunny
|
62°F |
18 to 22 mph
NW
|
|
Friday Night
Oct 16
|
Mostly Clear
|
35°F |
5 to 18 mph
N
|
|
Saturday
Oct 17
|
Sunny
|
61°F |
5 mph
NE
|
|
Saturday Night
Oct 17
|
Clear
|
34°F |
2 mph
SE
|
|
Sunday
Oct 18
|
Sunny
|
68°F |
3 to 8 mph
S
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
41°F |
6 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Gillespie.