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As of 11:39 CST

Weather in Hornsby, IL

68°Current weather

Hornsby, Tuesday, 3 November, 11:39

Overcast. Feels like 68°. High 68°, low 63°.

Pressure29.85 inHg
Wind24.2 mph S
Humidity77%
Visibility6.2 mi
Dew point61°
Wed, 0462° / 54°0.08Rain
62 °Rain

Hornsby, Wednesday, 4 November

Rain. High 62°, low 54°.

Pressure29.77 inHg
Wind14.1 mph SW
Humidity67%
Visibility6.2 mi
Dew point49°
Thu, 0562° / 49°0Clear
62 °Clear

Hornsby, Thursday, 5 November

Clear. High 62°, low 49°.

Pressure29.85 inHg
Wind12 mph W
Humidity53%
Visibility6.2 mi
Dew point43°
Fri, 0654° / 49°0.01Light rain
54 °Light rain

Hornsby, Friday, 6 November

Light rain. High 54°, low 49°.

Pressure30.09 inHg
Wind9.6 mph N
Humidity72%
Visibility6.2 mi
Dew point43°
Sat, 0753° / 39°0Overcast
53 °Overcast

Hornsby, Saturday, 7 November

Overcast. High 53°, low 39°.

Pressure30.21 inHg
Wind5 mph NW
Humidity53%
Visibility—
Dew point33°
Sun, 0863° / 39°0Clear
63 °Clear

Hornsby, Sunday, 8 November

Clear. High 63°, low 39°.

Pressure30.15 inHg
Wind7.4 mph W
Humidity57%
Visibility—
Dew point43°
Mon, 0969° / 47°0Clear
69 °Clear

Hornsby, Monday, 9 November

Clear. High 69°, low 47°.

Pressure30.09 inHg
Wind12.3 mph S
Humidity40%
Visibility—
Dew point39°
Tue, 1067° / 56°0Overcast
67 °Overcast

Hornsby, Tuesday, 10 November

Overcast. High 67°, low 56°.

Pressure30.06 inHg
Wind11 mph SW
Humidity47%
Visibility—
Dew point44°
Wed, 1161° / 47°0Overcast
61 °Overcast

Hornsby, Wednesday, 11 November

Overcast. High 61°, low 47°.

Pressure30.12 inHg
Wind9.4 mph N
Humidity33%
Visibility—
Dew point29°
Thu, 1254° / 39°0Clear
54 °Clear

Hornsby, Thursday, 12 November

Clear. High 54°, low 39°.

Pressure30.21 inHg
Wind10.1 mph N
Humidity34%
Visibility—
Dew point24°
Fri, 1353° / 36°0Clear
53 °Clear

Hornsby, Friday, 13 November

Clear. High 53°, low 36°.

Pressure30.24 inHg
Wind6.9 mph NE
Humidity45%
Visibility—
Dew point29°
Sat, 1455° / 37°0Clear
55 °Clear

Hornsby, Saturday, 14 November

Clear. High 55°, low 37°.

Pressure30.24 inHg
Wind5.2 mph SE
Humidity35%
Visibility—
Dew point24°
Sun, 1557° / 37°0Clear
57 °Clear

Hornsby, Sunday, 15 November

Clear. High 57°, low 37°.

Pressure30.09 inHg
Wind7.5 mph SE
Humidity32%
Visibility—
Dew point24°
Mon, 1661° / 41°0.06Light rain
61 °Light rain

Hornsby, Monday, 16 November

Light rain. High 61°, low 41°.

Pressure29.74 inHg
Wind17.4 mph SE
Humidity48%
Visibility—
Dew point37°
Tue, 1755° / 48°0.06Light rain
55 °Light rain

Hornsby, Tuesday, 17 November

Light rain. High 55°, low 48°.

Pressure29.68 inHg
Wind10.6 mph NW
Humidity89%
Visibility—
Dew point47°
Wed, 1859° / 44°0.14Light rain
59 °Light rain

Hornsby, Wednesday, 18 November

Light rain. High 59°, low 44°.

Pressure29.91 inHg
Wind13.6 mph E
Humidity55%
Visibility—
Dew point41°

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.