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As of 20:01 CST

Weather in Hornsby, IL

48°Current weather

Hornsby, Monday, 9 November, 20:01

Clear. Feels like 46°. High 69°, low 37°.

Pressure30.09 inHg
Wind5.7 mph S
Humidity76%
Visibility6.2 mi
Dew point42°
Tue, 1069° / 46°0Clear
69 °Clear

Hornsby, Tuesday, 10 November

Clear. High 69°, low 46°.

Pressure30.09 inHg
Wind4.2 mph W
Humidity60%
Visibility6.2 mi
Dew point50°
Wed, 1167° / 46°0Light rain
67 °Light rain

Hornsby, Wednesday, 11 November

Light rain. High 67°, low 46°.

Pressure29.77 inHg
Wind13.4 mph W
Humidity74%
Visibility6.2 mi
Dew point53°
Thu, 1249° / 39°0.01Light rain
49 °Light rain

Hornsby, Thursday, 12 November

Light rain. High 49°, low 39°.

Pressure30.00 inHg
Wind13 mph N
Humidity69%
Visibility6.2 mi
Dew point37°
Fri, 1343° / 35°0Overcast
43 °Overcast

Hornsby, Friday, 13 November

Overcast. High 43°, low 35°.

Pressure30.12 inHg
Wind12.5 mph N
Humidity61%
Visibility6.2 mi
Dew point23°
Sat, 1445° / 29°0Mostly clear
45 °Mostly clear

Hornsby, Saturday, 14 November

Mostly clear. High 45°, low 29°.

Pressure30.27 inHg
Wind3.7 mph NW
Humidity59%
Visibility—
Dew point29°
Sun, 1549° / 30°0Partly cloudy
49 °Partly cloudy

Hornsby, Sunday, 15 November

Partly cloudy. High 49°, low 30°.

Pressure30.33 inHg
Wind6.7 mph E
Humidity48%
Visibility—
Dew point27°
Mon, 1652° / 33°0Partly cloudy
52 °Partly cloudy

Hornsby, Monday, 16 November

Partly cloudy. High 52°, low 33°.

Pressure30.39 inHg
Wind7.4 mph E
Humidity35%
Visibility—
Dew point22°
Tue, 1753° / 34°0Clear
53 °Clear

Hornsby, Tuesday, 17 November

Clear. High 53°, low 34°.

Pressure30.45 inHg
Wind7.8 mph SE
Humidity42%
Visibility—
Dew point27°
Wed, 1857° / 35°0Clear
57 °Clear

Hornsby, Wednesday, 18 November

Clear. High 57°, low 35°.

Pressure30.39 inHg
Wind11.1 mph S
Humidity38%
Visibility—
Dew point27°
Thu, 1961° / 42°0Overcast
61 °Overcast

Hornsby, Thursday, 19 November

Overcast. High 61°, low 42°.

Pressure30.33 inHg
Wind12 mph S
Humidity44%
Visibility—
Dew point35°
Fri, 2050° / 49°0.04Light rain
50 °Light rain

Hornsby, Friday, 20 November

Light rain. High 50°, low 49°.

Pressure30.39 inHg
Wind8 mph S
Humidity65%
Visibility—
Dew point38°
Sat, 2152° / 50°0.28Light rain
52 °Light rain

Hornsby, Saturday, 21 November

Light rain. High 52°, low 50°.

Pressure30.33 inHg
Wind14.1 mph E
Humidity92%
Visibility—
Dew point50°
Sun, 2250° / 49°1.48Rain
50 °Rain

Hornsby, Sunday, 22 November

Rain. High 50°, low 49°.

Pressure30.06 inHg
Wind18.5 mph E
Humidity91%
Visibility—
Dew point46°
Mon, 2354° / 43°0Light rain
54 °Light rain

Hornsby, Monday, 23 November

Light rain. High 54°, low 43°.

Pressure29.88 inHg
Wind16.4 mph W
Humidity64%
Visibility—
Dew point42°
Tue, 2448° / 39°0Partly cloudy
48 °Partly cloudy

Hornsby, Tuesday, 24 November

Partly cloudy. High 48°, low 39°.

Pressure29.97 inHg
Wind14.3 mph W
Humidity53%
Visibility—
Dew point30°

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.