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As of 07:34 CST

Weather in Hornsby, IL

55°Current weather

Hornsby, Wednesday, 4 November, 07:34

Fog. Feels like 55°. High 62°, low 54°.

Pressure29.77 inHg
Wind10.4 mph SW
Humidity94%
Visibility2.0 mi
Dew point54°
Thu, 0561° / 48°0Clear
61 °Clear

Hornsby, Thursday, 5 November

Clear. High 61°, low 48°.

Pressure29.85 inHg
Wind11.6 mph W
Humidity51%
Visibility6.2 mi
Dew point42°
Fri, 0653° / 40°0Overcast
53 °Overcast

Hornsby, Friday, 6 November

Overcast. High 53°, low 40°.

Pressure30.15 inHg
Wind10.1 mph N
Humidity55%
Visibility6.2 mi
Dew point37°
Sat, 0752° / 34°0Overcast
52 °Overcast

Hornsby, Saturday, 7 November

Overcast. High 52°, low 34°.

Pressure30.27 inHg
Wind4.2 mph NW
Humidity48%
Visibility6.2 mi
Dew point32°
Sun, 0860° / 37°0Partly cloudy
60 °Partly cloudy

Hornsby, Sunday, 8 November

Partly cloudy. High 60°, low 37°.

Pressure30.18 inHg
Wind7.9 mph SW
Humidity56%
Visibility—
Dew point39°
Mon, 0965° / 42°0Clear
65 °Clear

Hornsby, Monday, 9 November

Clear. High 65°, low 42°.

Pressure30.21 inHg
Wind5.9 mph S
Humidity60%
Visibility—
Dew point46°
Tue, 1063° / 43°0Clear
63 °Clear

Hornsby, Tuesday, 10 November

Clear. High 63°, low 43°.

Pressure30.06 inHg
Wind9.2 mph N
Humidity40%
Visibility—
Dew point34°
Wed, 1158° / 41°0Overcast
58 °Overcast

Hornsby, Wednesday, 11 November

Overcast. High 58°, low 41°.

Pressure30.21 inHg
Wind7.9 mph NE
Humidity37%
Visibility—
Dew point29°
Thu, 1255° / 42°0Overcast
55 °Overcast

Hornsby, Thursday, 12 November

Overcast. High 55°, low 42°.

Pressure30.24 inHg
Wind6.7 mph N
Humidity45%
Visibility—
Dew point32°
Fri, 1357° / 39°0Clear
57 °Clear

Hornsby, Friday, 13 November

Clear. High 57°, low 39°.

Pressure30.21 inHg
Wind8.5 mph NW
Humidity44%
Visibility—
Dew point31°
Sat, 1463° / 40°0Clear
63 °Clear

Hornsby, Saturday, 14 November

Clear. High 63°, low 40°.

Pressure30.18 inHg
Wind8.6 mph W
Humidity45%
Visibility—
Dew point36°
Sun, 1564° / 47°0Overcast
64 °Overcast

Hornsby, Sunday, 15 November

Overcast. High 64°, low 47°.

Pressure30.18 inHg
Wind7 mph SW
Humidity45%
Visibility—
Dew point39°
Mon, 1664° / 53°0Overcast
64 °Overcast

Hornsby, Monday, 16 November

Overcast. High 64°, low 53°.

Pressure30.18 inHg
Wind5.8 mph SE
Humidity60%
Visibility—
Dew point47°
Tue, 1765° / 48°0Clear
65 °Clear

Hornsby, Tuesday, 17 November

Clear. High 65°, low 48°.

Pressure30.21 inHg
Wind11.2 mph S
Humidity38%
Visibility—
Dew point35°
Wed, 1864° / 47°0.09Light rain
64 °Light rain

Hornsby, Wednesday, 18 November

Light rain. High 64°, low 47°.

Pressure30.06 inHg
Wind15.6 mph S
Humidity48%
Visibility—
Dew point42°
Thu, 1956° / 45°0.83Rain
56 °Rain

Hornsby, Thursday, 19 November

Rain. High 56°, low 45°.

Pressure29.88 inHg
Wind15 mph NW
Humidity82%
Visibility—
Dew point46°

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 Hornsby, 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 Hornsby, 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.