Niantic, IL Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Niantic, IL in one place.
Mostly sunny, with a high near 86. South southeast wind 5 to 9 mph.
Local Weather Overview
This forecast page for Niantic, 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 7:35 PM CDT.
The active forecast window currently covers Aug 29 to Sep 3, 2026 for Niantic, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 29 to Sep 3, 2026
- Latest sync
- Aug 28, 2026 7:35 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Niantic
Tuesday looks like the warmest upcoming period in Niantic at 98 degrees F.
Saturday Night is the coolest period ahead with temperatures near 69 degrees F.
The strongest winds are forecast for Sunday at about 9 to 15 mph S.
The forecast from Aug 29 through Sep 3 stays mostly dry.
Forecast Details
- Last updated
- Aug 28, 2026 7:35 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
Partly cloudy, with a low around 69. South southeast wind 7 to 10 mph, with gusts as high as 16 mph.
Mostly sunny, with a high near 92. South wind 9 to 15 mph, with gusts as high as 21 mph.
Mostly clear, with a low around 73. South wind around 10 mph, with gusts as high as 16 mph.
Sunny, with a high near 96. South southwest wind 9 to 13 mph, with gusts as high as 18 mph.
Mostly clear, with a low around 75.
Sunny, with a high near 98.
Partly cloudy, with a low around 76.
Mostly sunny, with a high near 98.
Mostly clear, with a low around 76.
Mostly sunny, with a high near 97.
Partly cloudy, with a low around 74.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Mostly Sunny
|
86°F |
5 to 9 mph
SSE
|
|
Saturday Night
Aug 29
|
Partly Cloudy
|
69°F |
7 to 10 mph
SSE
|
|
Sunday
Aug 30
|
Mostly Sunny
|
92°F |
9 to 15 mph
S
|
|
Sunday Night
Aug 30
|
Mostly Clear
|
73°F |
10 mph
S
|
|
Monday
Aug 31
|
Sunny
|
96°F |
9 to 13 mph
SSW
|
|
Monday Night
Aug 31
|
Mostly Clear
|
75°F |
9 mph
S
|
|
Tuesday
Sep 1
|
Sunny
|
98°F |
10 mph
SW
|
|
Tuesday Night
Sep 1
|
Partly Cloudy
|
76°F |
9 mph
SSW
|
|
Wednesday
Sep 2
|
Mostly Sunny
|
98°F |
8 to 13 mph
SW
|
|
Wednesday Night
Sep 2
|
Mostly Clear
|
76°F |
5 to 9 mph
SSW
|
|
Thursday
Sep 3
|
Mostly Sunny
|
97°F |
6 to 9 mph
SSW
|
|
Thursday Night
Sep 3
|
Partly Cloudy
|
74°F |
8 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Niantic.