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As of 20:34 CDT

Weather in Hornsby, IL

63°Current weather

Hornsby, Saturday, 31 October, 20:34

Partly cloudy. Feels like 61°. High 67°, low 57°.

Pressure30.24 inHg
Wind8.1 mph E
Humidity51%
Visibility6.2 mi
Dew point44°
Sun, 0168° / 60°0.04Light rain
68 °Light rain

Hornsby, Sunday, 1 November

Light rain. High 68°, low 60°.

Pressure30.27 inHg
Wind11.3 mph SE
Humidity77%
Visibility6.2 mi
Dew point56°
Mon, 0269° / 59°0.01Light rain
69 °Light rain

Hornsby, Monday, 2 November

Light rain. High 69°, low 59°.

Pressure30.03 inHg
Wind10.9 mph SE
Humidity92%
Visibility6.2 mi
Dew point60°
Tue, 0373° / 65°0.43Rain
73 °Rain

Hornsby, Tuesday, 3 November

Rain. High 73°, low 65°.

Pressure29.85 inHg
Wind19.1 mph S
Humidity73%
Visibility4.7 mi
Dew point63°
Wed, 0464° / 57°0.67Heavy rain
64 °Heavy rain

Hornsby, Wednesday, 4 November

Heavy rain. High 64°, low 57°.

Pressure29.77 inHg
Wind10.4 mph W
Humidity59%
Visibility6.2 mi
Dew point47°
Thu, 0560° / 51°0Overcast
60 °Overcast

Hornsby, Thursday, 5 November

Overcast. High 60°, low 51°.

Pressure29.77 inHg
Wind13.5 mph W
Humidity56%
Visibility—
Dew point43°
Fri, 0656° / 50°0Overcast
56 °Overcast

Hornsby, Friday, 6 November

Overcast. High 56°, low 50°.

Pressure29.94 inHg
Wind13.4 mph NW
Humidity68%
Visibility—
Dew point43°
Sat, 0761° / 46°0Partly cloudy
61 °Partly cloudy

Hornsby, Saturday, 7 November

Partly cloudy. High 61°, low 46°.

Pressure29.74 inHg
Wind16.9 mph W
Humidity44%
Visibility—
Dew point35°
Sun, 0854° / 43°0Clear
54 °Clear

Hornsby, Sunday, 8 November

Clear. High 54°, low 43°.

Pressure29.74 inHg
Wind19.7 mph NW
Humidity36%
Visibility—
Dew point26°
Mon, 0954° / 37°0Mostly clear
54 °Mostly clear

Hornsby, Monday, 9 November

Mostly clear. High 54°, low 37°.

Pressure29.97 inHg
Wind16.7 mph NW
Humidity52%
Visibility—
Dew point33°
Tue, 1056° / 41°0Overcast
56 °Overcast

Hornsby, Tuesday, 10 November

Overcast. High 56°, low 41°.

Pressure30.09 inHg
Wind12.3 mph NW
Humidity44%
Visibility—
Dew point33°
Wed, 1155° / 37°0Overcast
55 °Overcast

Hornsby, Wednesday, 11 November

Overcast. High 55°, low 37°.

Pressure30.18 inHg
Wind7 mph NW
Humidity35%
Visibility—
Dew point24°
Thu, 1253° / 44°0Overcast
53 °Overcast

Hornsby, Thursday, 12 November

Overcast. High 53°, low 44°.

Pressure29.94 inHg
Wind13.6 mph SE
Humidity56%
Visibility—
Dew point35°
Fri, 1363° / 48°0Overcast
63 °Overcast

Hornsby, Friday, 13 November

Overcast. High 63°, low 48°.

Pressure29.77 inHg
Wind12 mph W
Humidity65%
Visibility—
Dew point46°
Sat, 1457° / 44°0Mostly clear
57 °Mostly clear

Hornsby, Saturday, 14 November

Mostly clear. High 57°, low 44°.

Pressure29.94 inHg
Wind17.4 mph NW
Humidity50%
Visibility—
Dew point37°
Sun, 1554° / 38°0Clear
54 °Clear

Hornsby, Sunday, 15 November

Clear. High 54°, low 38°.

Pressure30.15 inHg
Wind8.2 mph N
Humidity48%
Visibility—
Dew point31°

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.