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As of 22:27 CST

Weather in Hornsby, IL

28°Current weather

Hornsby, Saturday, 14 November, 22:27

Clear. Feels like 28°. High 48°, low 27°.

Pressure30.33 inHg
Wind0 mph N
Humidity80%
Visibility6.2 mi
Dew point25°
Sun, 1550° / 26°0Mostly clear
50 °Mostly clear

Hornsby, Sunday, 15 November

Mostly clear. High 50°, low 26°.

Pressure30.47 inHg
Wind1.7 mph NE
Humidity51%
Visibility6.2 mi
Dew point29°
Mon, 1654° / 29°0Clear
54 °Clear

Hornsby, Monday, 16 November

Clear. High 54°, low 29°.

Pressure30.53 inHg
Wind3.7 mph SW
Humidity48%
Visibility6.2 mi
Dew point34°
Tue, 1756° / 35°0Clear
56 °Clear

Hornsby, Tuesday, 17 November

Clear. High 56°, low 35°.

Pressure30.50 inHg
Wind6.4 mph S
Humidity53%
Visibility6.2 mi
Dew point37°
Wed, 1858° / 40°0Overcast
58 °Overcast

Hornsby, Wednesday, 18 November

Overcast. High 58°, low 40°.

Pressure30.36 inHg
Wind11.1 mph S
Humidity48%
Visibility6.2 mi
Dew point38°
Thu, 1966° / 47°0Clear
66 °Clear

Hornsby, Thursday, 19 November

Clear. High 66°, low 47°.

Pressure30.27 inHg
Wind10.6 mph S
Humidity53%
Visibility—
Dew point44°
Fri, 2067° / 54°0Overcast
67 °Overcast

Hornsby, Friday, 20 November

Overcast. High 67°, low 54°.

Pressure30.24 inHg
Wind10 mph S
Humidity62%
Visibility—
Dew point49°
Sat, 2166° / 50°0.05Light rain
66 °Light rain

Hornsby, Saturday, 21 November

Light rain. High 66°, low 50°.

Pressure30.00 inHg
Wind20.9 mph S
Humidity37%
Visibility—
Dew point36°
Sun, 2253° / 39°0.01Light rain
53 °Light rain

Hornsby, Sunday, 22 November

Light rain. High 53°, low 39°.

Pressure30.03 inHg
Wind23 mph NW
Humidity61%
Visibility—
Dew point32°
Mon, 2340° / 27°0Mostly clear
40 °Mostly clear

Hornsby, Monday, 23 November

Mostly clear. High 40°, low 27°.

Pressure30.42 inHg
Wind14.5 mph N
Humidity43%
Visibility—
Dew point16°
Tue, 2440° / 25°0Mostly clear
40 °Mostly clear

Hornsby, Tuesday, 24 November

Mostly clear. High 40°, low 25°.

Pressure30.56 inHg
Wind8.3 mph E
Humidity28%
Visibility—
Dew point7°
Wed, 2542° / 25°0Overcast
42 °Overcast

Hornsby, Wednesday, 25 November

Overcast. High 42°, low 25°.

Pressure30.45 inHg
Wind9.2 mph SE
Humidity38%
Visibility—
Dew point14°
Thu, 2652° / 31°0Overcast
52 °Overcast

Hornsby, Thursday, 26 November

Overcast. High 52°, low 31°.

Pressure30.12 inHg
Wind14.6 mph SE
Humidity30%
Visibility—
Dew point17°
Fri, 2758° / 46°0.91Rain
58 °Rain

Hornsby, Friday, 27 November

Rain. High 58°, low 46°.

Pressure29.32 inHg
Wind25.9 mph E
Humidity92%
Visibility—
Dew point50°
Sat, 2838° / 35°0.3Snow
38 °Snow

Hornsby, Saturday, 28 November

Snow. High 38°, low 35°.

Pressure29.59 inHg
Wind22.3 mph W
Humidity96%
Visibility—
Dew point35°
Sun, 2943° / 34°0Partly cloudy
43 °Partly cloudy

Hornsby, Sunday, 29 November

Partly cloudy. High 43°, low 34°.

Pressure30.12 inHg
Wind18.6 mph W
Humidity62%
Visibility—
Dew point28°

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.