Rock Falls, IL Weather Forecast
Local 7-day forecast
Mostly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Rock Falls, IL in one place.
Mostly cloudy, with a high near 83. East wind around 15 mph.
Local Weather Overview
This forecast page for Rock Falls, 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: May 30, 2026 7:14 PM CDT.
The active forecast window currently covers May 30 to Jun 5, 2026 for Rock Falls, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 30 to Jun 5, 2026
- Latest sync
- May 30, 2026 7:14 PM CDT
- Forecast office
- DVN
- Source
- NOAA / NWS
Daily Outlook
This Week in Rock Falls
Thursday looks like the warmest upcoming period in Rock Falls at 89 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 53 degrees F.
The strongest winds are forecast for This Afternoon at about 15 mph E.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- May 30, 2026 7:14 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- DVN
- Radar station
- KDVN
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly cloudy. Low around 56, with temperatures rising to around 58 overnight. East wind 10 to 15 mph, with gusts as high as 25 mph.
Partly sunny. High near 81, with temperatures falling to around 79 in the afternoon. Southeast wind 5 to 10 mph.
Mostly cloudy, with a low around 58. East wind around 5 mph.
A slight chance of rain showers between 7am and 1pm. Mostly sunny, with a high near 82.
Mostly clear, with a low around 54.
Sunny, with a high near 83.
Clear, with a low around 53.
Sunny, with a high near 86.
Mostly clear, with a low around 57.
Mostly sunny, with a high near 89.
A slight chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 40%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
May 30
|
Mostly Cloudy
|
83°F |
15 mph
E
|
|
Tonight
May 30
|
Mostly Cloudy
|
56°F |
10 to 15 mph
E
|
|
Sunday
May 31
|
Partly Sunny
|
81°F |
5 to 10 mph
SE
|
|
Sunday Night
May 31
|
Mostly Cloudy
|
58°F |
5 mph
E
|
|
Monday
Jun 1
|
Slight Chance Rain Showers
|
82°F |
5 mph
E
|
|
Monday Night
Jun 1
|
Mostly Clear
|
54°F |
5 mph
NE
|
|
Tuesday
Jun 2
|
Sunny
|
83°F |
5 to 10 mph
NE
|
|
Tuesday Night
Jun 2
|
Clear
|
53°F |
0 to 10 mph
E
|
|
Wednesday
Jun 3
|
Sunny
|
86°F |
0 to 5 mph
SE
|
|
Wednesday Night
Jun 3
|
Mostly Clear
|
57°F |
5 mph
S
|
|
Thursday
Jun 4
|
Mostly Sunny
|
89°F |
5 to 15 mph
SW
|
|
Thursday Night
Jun 4
|
Slight Chance Showers And Thunderstorms
|
63°F |
5 to 10 mph
SW
|
|
Friday
Jun 5
|
Chance Showers And Thunderstorms
|
88°F |
10 to 15 mph
SW
|
|
Friday Night
Jun 5
|
Chance Showers And Thunderstorms
|
64°F |
5 to 10 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Rock Falls.
