New Athens, IL Weather Forecast
Local 7-day forecast
Sunny then Isolated Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for New Athens, IL in one place.
Isolated showers and thunderstorms after 3pm. Sunny, with a high near 90. Heat index values as high as 101. East wind 0 to 5 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for New Athens, 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 14, 2026 9:46 PM CDT.
The active forecast window currently covers Jul 15 to Jul 21, 2026 for New Athens, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 15 to Jul 21, 2026
- Latest sync
- Jul 14, 2026 9:46 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in New Athens
Monday looks like the warmest upcoming period in New Athens at 94 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 72 degrees F.
The strongest winds are forecast for Saturday at about 5 to 8 mph W.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 14, 2026 9:46 PM CDT
- Coverage
- 7 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
Isolated showers and thunderstorms before 9pm. Mostly clear, with a low around 72. Southeast wind 0 to 3 mph. Chance of precipitation is 20%.
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. Heat index values as high as 102. South wind 0 to 3 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 72. Southwest wind around 2 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 91. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 73. Chance of precipitation is 50%.
Sunny, with a high near 93.
Mostly clear, with a low around 75.
Sunny, with a high near 93.
Mostly clear, with a low around 73.
Mostly sunny, with a high near 94.
Partly cloudy, with a low around 74.
Mostly sunny, with a high near 92.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Jul 15
|
Sunny then Isolated Showers And Thunderstorms
|
90°F |
0 to 5 mph
E
|
|
Wednesday Night
Jul 15
|
Isolated Showers And Thunderstorms then Mostly Clear
|
72°F |
0 to 3 mph
SE
|
|
Thursday
Jul 16
|
Mostly Sunny then Chance Showers And Thunderstorms
|
90°F |
0 to 3 mph
S
|
|
Thursday Night
Jul 16
|
Chance Showers And Thunderstorms then Partly Cloudy
|
72°F |
2 mph
SW
|
|
Friday
Jul 17
|
Chance Showers And Thunderstorms
|
91°F |
2 to 6 mph
W
|
|
Friday Night
Jul 17
|
Chance Showers And Thunderstorms then Partly Cloudy
|
73°F |
3 mph
W
|
|
Saturday
Jul 18
|
Sunny
|
93°F |
5 to 8 mph
W
|
|
Saturday Night
Jul 18
|
Mostly Clear
|
75°F |
6 mph
W
|
|
Sunday
Jul 19
|
Sunny
|
93°F |
7 mph
W
|
|
Sunday Night
Jul 19
|
Mostly Clear
|
73°F |
5 mph
W
|
|
Monday
Jul 20
|
Mostly Sunny
|
94°F |
7 mph
W
|
|
Monday Night
Jul 20
|
Partly Cloudy
|
74°F |
6 mph
W
|
|
Tuesday
Jul 21
|
Mostly Sunny
|
92°F |
5 to 8 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around New Athens.