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As of 21:53 CST

Weather in Hornsby, IL

46°Current weather

Hornsby, Wednesday, 11 November, 21:53

Clear. Feels like 41°. High 67°, low 43°.

Pressure29.91 inHg
Wind11.5 mph N
Humidity81%
Visibility6.2 mi
Dew point41°
Thu, 1252° / 36°0Overcast
52 °Overcast

Hornsby, Thursday, 12 November

Overcast. High 52°, low 36°.

Pressure29.97 inHg
Wind15 mph N
Humidity55%
Visibility6.2 mi
Dew point30°
Fri, 1347° / 32°0Overcast
47 °Overcast

Hornsby, Friday, 13 November

Overcast. High 47°, low 32°.

Pressure30.09 inHg
Wind12.5 mph N
Humidity62%
Visibility6.2 mi
Dew point24°
Sat, 1446° / 29°0Clear
46 °Clear

Hornsby, Saturday, 14 November

Clear. High 46°, low 29°.

Pressure30.33 inHg
Wind4.7 mph N
Humidity57%
Visibility6.2 mi
Dew point25°
Sun, 1549° / 29°0Partly cloudy
49 °Partly cloudy

Hornsby, Sunday, 15 November

Partly cloudy. High 49°, low 29°.

Pressure30.45 inHg
Wind0.3 mph NW
Humidity51%
Visibility6.2 mi
Dew point28°
Mon, 1653° / 31°0Clear
53 °Clear

Hornsby, Monday, 16 November

Clear. High 53°, low 31°.

Pressure30.47 inHg
Wind6.7 mph SW
Humidity46%
Visibility—
Dew point29°
Tue, 1756° / 35°0Clear
56 °Clear

Hornsby, Tuesday, 17 November

Clear. High 56°, low 35°.

Pressure30.45 inHg
Wind7.6 mph SE
Humidity45%
Visibility—
Dew point31°
Wed, 1858° / 36°0Clear
58 °Clear

Hornsby, Wednesday, 18 November

Clear. High 58°, low 36°.

Pressure30.36 inHg
Wind10 mph S
Humidity36%
Visibility—
Dew point26°
Thu, 1960° / 39°0Partly cloudy
60 °Partly cloudy

Hornsby, Thursday, 19 November

Partly cloudy. High 60°, low 39°.

Pressure30.24 inHg
Wind11.2 mph S
Humidity34%
Visibility—
Dew point27°
Fri, 2064° / 46°0Overcast
64 °Overcast

Hornsby, Friday, 20 November

Overcast. High 64°, low 46°.

Pressure30.12 inHg
Wind11.3 mph SW
Humidity46%
Visibility—
Dew point38°
Sat, 2158° / 45°0Partly cloudy
58 °Partly cloudy

Hornsby, Saturday, 21 November

Partly cloudy. High 58°, low 45°.

Pressure30.12 inHg
Wind7 mph SE
Humidity59%
Visibility—
Dew point42°
Sun, 2266° / 49°0.01Light rain
66 °Light rain

Hornsby, Sunday, 22 November

Light rain. High 66°, low 49°.

Pressure29.80 inHg
Wind17.5 mph S
Humidity41%
Visibility—
Dew point38°
Mon, 2351° / 42°0.07Light rain
51 °Light rain

Hornsby, Monday, 23 November

Light rain. High 51°, low 42°.

Pressure30.00 inHg
Wind10.5 mph NW
Humidity61%
Visibility—
Dew point34°
Tue, 2443° / 33°1.61Snow
43 °Snow

Hornsby, Tuesday, 24 November

Snow. High 43°, low 33°.

Pressure29.71 inHg
Wind21.8 mph N
Humidity93%
Visibility—
Dew point38°
Wed, 2537° / 27°0.04Light snow
37 °Light snow

Hornsby, Wednesday, 25 November

Light snow. High 37°, low 27°.

Pressure30.18 inHg
Wind16.1 mph NW
Humidity71%
Visibility—
Dew point26°
Thu, 2636° / 26°0Overcast
36 °Overcast

Hornsby, Thursday, 26 November

Overcast. High 36°, low 26°.

Pressure30.56 inHg
Wind8.3 mph NW
Humidity51%
Visibility—
Dew point19°

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.