Newtown, IL Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Newtown, IL in one place.
Mostly sunny, with a high near 84. South southeast wind 1 to 5 mph.
Local Weather Overview
This forecast page for Newtown, 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: Aug 28, 2026 5:43 PM CDT.
The active forecast window currently covers Aug 29 to Sep 3, 2026 for Newtown, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 29 to Sep 3, 2026
- Latest sync
- Aug 28, 2026 5:43 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Newtown
Tuesday looks like the warmest upcoming period in Newtown at 95 degrees F.
Saturday Night is the coolest period ahead with temperatures near 67 degrees F.
The strongest winds are forecast for Sunday at about 6 to 12 mph S.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 28, 2026 5:43 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KILX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly cloudy, with a low around 67. South southeast wind around 6 mph.
Mostly sunny, with a high near 89. South wind 6 to 12 mph, with gusts as high as 18 mph.
Mostly clear, with a low around 71. South wind around 7 mph.
Sunny, with a high near 93. South southwest wind 6 to 10 mph, with gusts as high as 16 mph.
Mostly clear, with a low around 74.
Sunny, with a high near 95.
Mostly clear, with a low around 74.
Mostly sunny, with a high near 95.
Mostly clear, with a low around 74.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93.
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Mostly Sunny
|
84°F |
1 to 5 mph
SSE
|
|
Saturday Night
Aug 29
|
Mostly Cloudy
|
67°F |
6 mph
SSE
|
|
Sunday
Aug 30
|
Mostly Sunny
|
89°F |
6 to 12 mph
S
|
|
Sunday Night
Aug 30
|
Mostly Clear
|
71°F |
7 mph
S
|
|
Monday
Aug 31
|
Sunny
|
93°F |
6 to 10 mph
SSW
|
|
Monday Night
Aug 31
|
Mostly Clear
|
74°F |
7 mph
SSW
|
|
Tuesday
Sep 1
|
Sunny
|
95°F |
5 to 9 mph
SSW
|
|
Tuesday Night
Sep 1
|
Mostly Clear
|
74°F |
6 mph
SSW
|
|
Wednesday
Sep 2
|
Mostly Sunny
|
95°F |
7 mph
SW
|
|
Wednesday Night
Sep 2
|
Mostly Clear
|
74°F |
5 mph
SSW
|
|
Thursday
Sep 3
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
93°F |
5 mph
SW
|
|
Thursday Night
Sep 3
|
Slight Chance Showers And Thunderstorms
|
72°F |
3 mph
SSE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Newtown.