Onarga, IL Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Onarga, IL in one place.
Mostly sunny, with a high near 82.
Local Weather Overview
This forecast page for Onarga, 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: Apr 15, 2026 2:30 AM CDT.
The active forecast window currently covers Apr 17 to Apr 21, 2026 for Onarga, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 17 to Apr 21, 2026
- Latest sync
- Apr 15, 2026 2:30 AM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Onarga
Friday looks like the warmest upcoming period in Onarga at 82 degrees F.
Sunday Night is the coolest period ahead with temperatures near 33 degrees F.
The strongest winds are forecast for Saturday at about 15 to 20 mph SW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 15, 2026 2:30 AM CDT
- Coverage
- 5 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KLOT
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 between 7pm and 1am, then showers and thunderstorms. Mostly cloudy, with a low around 56.
Showers and thunderstorms. Mostly cloudy, with a high near 70.
A chance of rain showers before 1am. Partly cloudy, with a low around 36.
Sunny, with a high near 55.
Mostly clear, with a low around 33.
Sunny, with a high near 60.
Mostly clear, with a low around 40.
Sunny, with a high near 69.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Apr 17
|
Mostly Sunny
|
82°F |
5 to 15 mph
S
|
|
Friday Night
Apr 17
|
Chance Showers And Thunderstorms
|
56°F |
10 to 15 mph
S
|
|
Saturday
Apr 18
|
Showers And Thunderstorms
|
70°F |
15 to 20 mph
SW
|
|
Saturday Night
Apr 18
|
Chance Rain Showers
|
36°F |
15 mph
W
|
|
Sunday
Apr 19
|
Sunny
|
55°F |
15 to 20 mph
WNW
|
|
Sunday Night
Apr 19
|
Mostly Clear
|
33°F |
5 to 15 mph
NW
|
|
Monday
Apr 20
|
Sunny
|
60°F |
5 to 10 mph
W
|
|
Monday Night
Apr 20
|
Mostly Clear
|
40°F |
5 to 10 mph
S
|
|
Tuesday
Apr 21
|
Sunny
|
69°F |
10 to 15 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Onarga.
