Nashville, IL Weather Forecast
Local 7-day forecast
Mostly Sunny then Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Nashville, IL in one place.
A slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 92. Heat index values as high as 102. West wind 3 to 9 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for Nashville, 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: Jul 17, 2026 7:22 AM CDT.
The active forecast window currently covers Jul 18 to Jul 23, 2026 for Nashville, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 18 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 7:22 AM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Nashville
Monday looks like the warmest upcoming period in Nashville at 93 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 63 degrees F.
The strongest winds are forecast for Saturday at about 3 to 9 mph W.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 17, 2026 7:22 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 chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 73. West wind 2 to 7 mph. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 70. Chance of precipitation is 20%.
Mostly sunny, with a high near 93.
Partly cloudy, with a low around 74.
Mostly sunny, with a high near 93.
Partly cloudy, with a low around 69.
Mostly sunny, with a high near 84.
Partly cloudy, with a low around 63.
Sunny, with a high near 84.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Jul 18
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
92°F |
3 to 9 mph
W
|
|
Saturday Night
Jul 18
|
Chance Showers And Thunderstorms
|
73°F |
2 to 7 mph
W
|
|
Sunday
Jul 19
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
90°F |
2 mph
N
|
|
Sunday Night
Jul 19
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
70°F |
2 mph
E
|
|
Monday
Jul 20
|
Mostly Sunny
|
93°F |
2 mph
S
|
|
Monday Night
Jul 20
|
Partly Cloudy
|
74°F |
5 mph
SW
|
|
Tuesday
Jul 21
|
Mostly Sunny
|
93°F |
5 to 9 mph
W
|
|
Tuesday Night
Jul 21
|
Partly Cloudy
|
69°F |
5 to 9 mph
N
|
|
Wednesday
Jul 22
|
Mostly Sunny
|
84°F |
6 to 9 mph
N
|
|
Wednesday Night
Jul 22
|
Partly Cloudy
|
63°F |
2 to 7 mph
NE
|
|
Thursday
Jul 23
|
Sunny
|
84°F |
5 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Nashville.
