As of 04:10 CDT

Weather in Rock Falls, IL

55°

Rock Falls, Sunday, 11 October, 04:10

Clear. Feels like 54°. High 78°, low 55°.

Pressure29.94 inHg

Wind4.6 mph S

Humidity86%

Visibility6.2 mi

Dew point51°

See detailed hourly forecast

Mon, 1283° / 61°

83 °

Rock Falls, Monday, 12 October

Mostly clear. High 83°, low 61°.

Pressure29.83 inHg

Wind10.8 mph SW

Humidity57%

Visibility6.2 mi

Dew point62°

Tue, 1376° / 66°

0.23

76 °

Rock Falls, Tuesday, 13 October

Rain. High 76°, low 66°.

Pressure29.85 inHg

Wind7.5 mph W

Humidity68%

Visibility6.2 mi

Dew point63°

Wed, 1472° / 59°

0.34

72 °

Rock Falls, Wednesday, 14 October

Heavy rain. High 72°, low 59°.

Pressure30.09 inHg

Wind6.8 mph NE

Humidity64%

Visibility6.2 mi

Dew point57°

Thu, 1557° / 55°

0.74

57 °

Rock Falls, Thursday, 15 October

Rain. High 57°, low 55°.

Pressure30.18 inHg

Wind10.7 mph E

Humidity92%

Visibility—

Dew point54°

Fri, 1658° / 42°

58 °

Rock Falls, Friday, 16 October

Overcast. High 58°, low 42°.

Pressure30.45 inHg

Wind16.7 mph N

Humidity50%

Visibility—

Dew point38°

Sat, 1742° / 29°

42 °

Rock Falls, Saturday, 17 October

Partly cloudy. High 42°, low 29°.

Pressure30.45 inHg

Wind21.1 mph N

Humidity40%

Visibility—

Dew point16°

Sun, 1847° / 27°

47 °

Rock Falls, Sunday, 18 October

Mostly clear. High 47°, low 27°.

Pressure30.53 inHg

Wind8.8 mph SW

Humidity36%

Visibility—

Dew point16°

Mon, 1959° / 38°

59 °

Rock Falls, Monday, 19 October

Overcast. High 59°, low 38°.

Pressure30.24 inHg

Wind17.5 mph SW

Humidity36%

Visibility—

Dew point27°

Tue, 2065° / 42°

65 °

Rock Falls, Tuesday, 20 October

Clear. High 65°, low 42°.

Pressure30.15 inHg

Wind14.6 mph SW

Humidity36%

Visibility—

Dew point32°

Wed, 2167° / 49°

67 °

Rock Falls, Wednesday, 21 October

Clear. High 67°, low 49°.

Pressure30.15 inHg

Wind16.4 mph SW

Humidity36%

Visibility—

Dew point36°

Thu, 2268° / 51°

68 °

Rock Falls, Thursday, 22 October

Mostly clear. High 68°, low 51°.

Pressure30.33 inHg

Wind10 mph NW

Humidity36%

Visibility—

Dew point38°

Fri, 2367° / 46°

67 °

Rock Falls, Friday, 23 October

Mostly clear. High 67°, low 46°.

Pressure30.27 inHg

Wind19.1 mph S

Humidity44%

Visibility—

Dew point39°

Sat, 2463° / 45°

0.13

63 °

Rock Falls, Saturday, 24 October

Light rain. High 63°, low 45°.

Pressure30.12 inHg

Wind20.1 mph NW

Humidity56%

Visibility—

Dew point38°

Sun, 2551° / 36°

51 °

Rock Falls, Sunday, 25 October

Overcast. High 51°, low 36°.

Pressure30.39 inHg

Wind9.2 mph NW

Humidity50%

Visibility—

Dew point30°

Mon, 2656° / 40°

56 °

Rock Falls, Monday, 26 October

Clear. High 56°, low 40°.

Pressure30.09 inHg

Wind14.5 mph N

Humidity48%

Visibility—

Dew point34°

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.