Big Rock, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Big Rock, IL in one place.
Sunny, with a high near 52.
Local Weather Overview
This forecast page for Big Rock, 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 8:42 PM CDT.
The active forecast window currently covers Apr 19 to Apr 22, 2026 for Big Rock, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 19 to Apr 22, 2026
- Latest sync
- Apr 15, 2026 8:42 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Big Rock
Tuesday looks like the warmest upcoming period in Big Rock at 72 degrees F.
Sunday Night is the coolest period ahead with temperatures near 33 degrees F.
The strongest winds are forecast for Sunday at about 10 to 20 mph WNW.
The forecast from Apr 19 through Apr 22 stays mostly dry.
Forecast Details
- Last updated
- Apr 15, 2026 8:42 PM CDT
- Coverage
- 4 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
Patchy frost after 5am. Partly cloudy, with a low around 33.
Patchy frost before 7am. Sunny, with a high near 61.
Mostly clear, with a low around 48.
Mostly sunny, with a high near 72.
Mostly clear, with a low around 49.
Mostly sunny, with a high near 70.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Apr 19
|
Sunny
|
52°F |
10 to 20 mph
WNW
|
|
Sunday Night
Apr 19
|
Partly Cloudy then Patchy Frost
|
33°F |
5 to 15 mph
NNW
|
|
Monday
Apr 20
|
Patchy Frost then Sunny
|
61°F |
5 to 15 mph
SE
|
|
Monday Night
Apr 20
|
Mostly Clear
|
48°F |
10 to 15 mph
S
|
|
Tuesday
Apr 21
|
Mostly Sunny
|
72°F |
15 to 20 mph
SW
|
|
Tuesday Night
Apr 21
|
Mostly Clear
|
49°F |
10 to 15 mph
WSW
|
|
Wednesday
Apr 22
|
Mostly Sunny
|
70°F |
10 to 15 mph
WSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Big Rock.
