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As of 03:42 CDT

Weather in Rock Falls, IL

36°Current weather

Rock Falls, Saturday, 17 October, 03:42

Clear. Feels like 33°. High 55°, low 36°.

Pressure30.50 inHg
Wind4.4 mph N
Humidity90%
Visibility6.2 mi
Dew point34°
Sun, 1862° / 41°0Clear
62 °Clear

Rock Falls, Sunday, 18 October

Clear. High 62°, low 41°.

Pressure30.42 inHg
Wind13 mph S
Humidity51%
Visibility6.2 mi
Dew point40°
Mon, 1964° / 42°0Overcast
64 °Overcast

Rock Falls, Monday, 19 October

Overcast. High 64°, low 42°.

Pressure30.39 inHg
Wind4.8 mph S
Humidity58%
Visibility6.2 mi
Dew point45°
Tue, 2066° / 43°0Mostly clear
66 °Mostly clear

Rock Falls, Tuesday, 20 October

Mostly clear. High 66°, low 43°.

Pressure30.36 inHg
Wind5 mph SE
Humidity50%
Visibility6.2 mi
Dew point45°
Wed, 2169° / 46°0Clear
69 °Clear

Rock Falls, Wednesday, 21 October

Clear. High 69°, low 46°.

Pressure30.27 inHg
Wind5.4 mph SW
Humidity49%
Visibility—
Dew point44°
Thu, 2269° / 48°0Clear
69 °Clear

Rock Falls, Thursday, 22 October

Clear. High 69°, low 48°.

Pressure30.24 inHg
Wind4.9 mph E
Humidity48%
Visibility—
Dew point46°
Fri, 2371° / 54°0Overcast
71 °Overcast

Rock Falls, Friday, 23 October

Overcast. High 71°, low 54°.

Pressure30.18 inHg
Wind10.5 mph S
Humidity38%
Visibility—
Dew point41°
Sat, 2471° / 57°0Overcast
71 °Overcast

Rock Falls, Saturday, 24 October

Overcast. High 71°, low 57°.

Pressure30.15 inHg
Wind13.5 mph S
Humidity39%
Visibility—
Dew point42°
Sun, 2572° / 52°0.12Rain
72 °Rain

Rock Falls, Sunday, 25 October

Rain. High 72°, low 52°.

Pressure29.97 inHg
Wind12.3 mph N
Humidity42%
Visibility—
Dew point46°
Mon, 2650° / 40°0.59Rain
50 °Rain

Rock Falls, Monday, 26 October

Rain. High 50°, low 40°.

Pressure30.18 inHg
Wind13.8 mph NW
Humidity74%
Visibility—
Dew point37°
Tue, 2750° / 36°0Overcast
50 °Overcast

Rock Falls, Tuesday, 27 October

Overcast. High 50°, low 36°.

Pressure30.42 inHg
Wind9.1 mph S
Humidity53%
Visibility—
Dew point30°
Wed, 2856° / 45°1.06Heavy rain
56 °Heavy rain

Rock Falls, Wednesday, 28 October

Heavy rain. High 56°, low 45°.

Pressure30.03 inHg
Wind20.5 mph SW
Humidity82%
Visibility—
Dew point40°
Thu, 2959° / 48°0Overcast
59 °Overcast

Rock Falls, Thursday, 29 October

Overcast. High 59°, low 48°.

Pressure30.00 inHg
Wind25.5 mph W
Humidity61%
Visibility—
Dew point44°
Fri, 3061° / 46°0Overcast
61 °Overcast

Rock Falls, Friday, 30 October

Overcast. High 61°, low 46°.

Pressure30.03 inHg
Wind14.6 mph S
Humidity56%
Visibility—
Dew point41°
Sat, 3168° / 53°1.32Heavy rain
68 °Heavy rain

Rock Falls, Saturday, 31 October

Heavy rain. High 68°, low 53°.

Pressure29.56 inHg
Wind21.6 mph S
Humidity89%
Visibility—
Dew point56°
Sun, 0162° / 46°0.02Light rain
62 °Light rain

Rock Falls, Sunday, 1 November

Light rain. High 62°, low 46°.

Pressure29.94 inHg
Wind15 mph W
Humidity63%
Visibility—
Dew point39°

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.