As of 04:40 CDT

Weather in Rock Falls, IL

57°

Rock Falls, Thursday, 15 October, 04:40

Overcast. Feels like 56°. High 67°, low 54°.

Pressure30.12 inHg

Wind10.4 mph NE

Humidity82%

Visibility2.7 mi

Dew point52°

See detailed hourly forecast

Fri, 1655° / 45°

0.02

55 °

Rock Falls, Friday, 16 October

Light rain. High 55°, low 45°.

Pressure30.12 inHg

Wind18.1 mph NW

Humidity67%

Visibility6.2 mi

Dew point43°

Sat, 1756° / 36°

56 °

Rock Falls, Saturday, 17 October

Clear. High 56°, low 36°.

Pressure30.56 inHg

Wind5.7 mph SW

Humidity47%

Visibility6.2 mi

Dew point33°

Sun, 1861° / 42°

61 °

Rock Falls, Sunday, 18 October

Clear. High 61°, low 42°.

Pressure30.45 inHg

Wind13 mph SW

Humidity46%

Visibility6.2 mi

Dew point37°

Mon, 1963° / 42°

63 °

Rock Falls, Monday, 19 October

Overcast. High 63°, low 42°.

Pressure30.36 inHg

Wind7.2 mph S

Humidity49%

Visibility—

Dew point40°

Tue, 2066° / 44°

66 °

Rock Falls, Tuesday, 20 October

Clear. High 66°, low 44°.

Pressure30.33 inHg

Wind5.9 mph E

Humidity46%

Visibility—

Dew point41°

Wed, 2168° / 50°

68 °

Rock Falls, Wednesday, 21 October

Clear. High 68°, low 50°.

Pressure30.33 inHg

Wind7.9 mph SE

Humidity42%

Visibility—

Dew point41°

Thu, 2269° / 53°

69 °

Rock Falls, Thursday, 22 October

Overcast. High 69°, low 53°.

Pressure30.27 inHg

Wind8.8 mph SE

Humidity42%

Visibility—

Dew point42°

Fri, 2371° / 55°

71 °

Rock Falls, Friday, 23 October

Overcast. High 71°, low 55°.

Pressure30.09 inHg

Wind15.7 mph SE

Humidity42%

Visibility—

Dew point43°

Sat, 2463° / 56°

0.06

63 °

Rock Falls, Saturday, 24 October

Light rain. High 63°, low 56°.

Pressure30.09 inHg

Wind15.1 mph S

Humidity81%

Visibility—

Dew point55°

Sun, 2553° / 44°

0.34

53 °

Rock Falls, Sunday, 25 October

Rain. High 53°, low 44°.

Pressure30.18 inHg

Wind14.9 mph W

Humidity51%

Visibility—

Dew point34°

Mon, 2650° / 37°

50 °

Rock Falls, Monday, 26 October

Clear. High 50°, low 37°.

Pressure30.33 inHg

Wind13.1 mph W

Humidity37%

Visibility—

Dew point22°

Tue, 2746° / 37°

46 °

Rock Falls, Tuesday, 27 October

Overcast. High 46°, low 37°.

Pressure30.30 inHg

Wind12.4 mph NW

Humidity34%

Visibility—

Dew point17°

Wed, 2857° / 35°

0.01

57 °

Rock Falls, Wednesday, 28 October

Light rain. High 57°, low 35°.

Pressure30.03 inHg

Wind16.7 mph SW

Humidity52%

Visibility—

Dew point35°

Thu, 2949° / 42°

49 °

Rock Falls, Thursday, 29 October

Overcast. High 49°, low 42°.

Pressure30.09 inHg

Wind9.6 mph N

Humidity51%

Visibility—

Dew point29°

Fri, 3041° / 31°

41 °

Rock Falls, Friday, 30 October

Clear. High 41°, low 31°.

Pressure30.50 inHg

Wind15.6 mph N

Humidity39%

Visibility—

Dew point16°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Rock Falls, IL are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Rock Falls, IL since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.