Niantic, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Niantic, IL in one place.
Sunny, with a high near 92. West southwest wind around 13 mph, with gusts as high as 18 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: Oct 12, 2026 11:14 AM CDT.
The active forecast window currently covers Oct 13 to Oct 18, 2026 for Niantic, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 13 to Oct 18, 2026
- Latest sync
- Oct 12, 2026 11:14 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Niantic
Tuesday looks like the warmest upcoming period in Niantic at 92 degrees F.
Friday Night is the coolest period ahead with temperatures near 36 degrees F.
The strongest winds are forecast for Friday at about 21 to 25 mph NNW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 12, 2026 11:14 AM 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
A slight chance of showers and thunderstorms between 7pm and 1am, then showers and thunderstorms likely. Partly cloudy, with a low around 70. Southwest wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms. Mostly cloudy, with a high near 80. West northwest wind around 7 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Showers and thunderstorms likely. Mostly cloudy, with a low around 61. Northeast wind around 8 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms. Mostly cloudy, with a high near 77. South southeast wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms. Mostly cloudy, with a low around 49. Chance of precipitation is 80%.
A slight chance of rain showers before 7am. Partly sunny, with a high near 61.
Partly cloudy, with a low around 36.
Sunny, with a high near 60.
Clear, with a low around 36.
Sunny, with a high near 68.
Mostly clear, with a low around 44.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Oct 13
|
Sunny
|
92°F |
13 mph
WSW
|
|
Tuesday Night
Oct 13
|
Slight Chance Showers And Thunderstorms
|
70°F |
7 mph
SW
|
|
Wednesday
Oct 14
|
Showers And Thunderstorms
|
80°F |
7 mph
WNW
|
|
Wednesday Night
Oct 14
|
Showers And Thunderstorms Likely
|
61°F |
8 mph
NE
|
|
Thursday
Oct 15
|
Showers And Thunderstorms
|
77°F |
10 mph
SSE
|
|
Thursday Night
Oct 15
|
Showers And Thunderstorms
|
49°F |
10 to 21 mph
WNW
|
|
Friday
Oct 16
|
Slight Chance Rain Showers then Partly Sunny
|
61°F |
21 to 25 mph
NNW
|
|
Friday Night
Oct 16
|
Partly Cloudy
|
36°F |
6 to 18 mph
N
|
|
Saturday
Oct 17
|
Sunny
|
60°F |
6 mph
NE
|
|
Saturday Night
Oct 17
|
Clear
|
36°F |
2 to 6 mph
SE
|
|
Sunday
Oct 18
|
Sunny
|
68°F |
6 to 12 mph
S
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
44°F |
8 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Niantic.