EN
English Español

As of 11:34 CDT

Weather in Allerton, IL

73°Current weather

Allerton, Saturday, 10 October, 11:34

Overcast. Feels like 73°. High 75°, low 56°.

Pressure30.12 inHg
Wind8.7 mph SE
Humidity51%
Visibility6.2 mi
Dew point54°
Sun, 1178° / 52°0Clear
78 °Clear

Allerton, Sunday, 11 October

Clear. High 78°, low 52°.

Pressure29.97 inHg
Wind6 mph N
Humidity53%
Visibility6.2 mi
Dew point55°
Mon, 1286° / 52°0Clear
86 °Clear

Allerton, Monday, 12 October

Clear. High 86°, low 52°.

Pressure29.91 inHg
Wind11 mph SW
Humidity47%
Visibility6.2 mi
Dew point60°
Tue, 1387° / 68°0Light rain
87 °Light rain

Allerton, Tuesday, 13 October

Light rain. High 87°, low 68°.

Pressure29.85 inHg
Wind12.2 mph W
Humidity53%
Visibility6.2 mi
Dew point64°
Wed, 1478° / 60°0.01Light rain
78 °Light rain

Allerton, Wednesday, 14 October

Light rain. High 78°, low 60°.

Pressure30.03 inHg
Wind13.3 mph NE
Humidity54%
Visibility—
Dew point58°
Thu, 1565° / 57°0.29Rain
65 °Rain

Allerton, Thursday, 15 October

Rain. High 65°, low 57°.

Pressure30.24 inHg
Wind11.7 mph E
Humidity60%
Visibility—
Dew point49°
Fri, 1662° / 44°0.14Light rain
62 °Light rain

Allerton, Friday, 16 October

Light rain. High 62°, low 44°.

Pressure29.91 inHg
Wind25.1 mph W
Humidity38%
Visibility—
Dew point31°
Sat, 1742° / 33°0Overcast
42 °Overcast

Allerton, Saturday, 17 October

Overcast. High 42°, low 33°.

Pressure30.30 inHg
Wind19.7 mph W
Humidity52%
Visibility—
Dew point23°
Sun, 1850° / 30°0Clear
50 °Clear

Allerton, Sunday, 18 October

Clear. High 50°, low 30°.

Pressure30.50 inHg
Wind9.6 mph NW
Humidity42%
Visibility—
Dew point24°
Mon, 1958° / 34°0Overcast
58 °Overcast

Allerton, Monday, 19 October

Overcast. High 58°, low 34°.

Pressure30.42 inHg
Wind11.9 mph S
Humidity30%
Visibility—
Dew point21°
Tue, 2064° / 39°0Overcast
64 °Overcast

Allerton, Tuesday, 20 October

Overcast. High 64°, low 39°.

Pressure30.33 inHg
Wind13.5 mph S
Humidity30%
Visibility—
Dew point28°
Wed, 2163° / 49°0.08Light rain
63 °Light rain

Allerton, Wednesday, 21 October

Light rain. High 63°, low 49°.

Pressure30.06 inHg
Wind19.4 mph SW
Humidity47%
Visibility—
Dew point40°
Thu, 2266° / 43°0Clear
66 °Clear

Allerton, Thursday, 22 October

Clear. High 66°, low 43°.

Pressure30.18 inHg
Wind11.5 mph SW
Humidity39%
Visibility—
Dew point35°
Fri, 2363° / 47°0Mostly clear
63 °Mostly clear

Allerton, Friday, 23 October

Mostly clear. High 63°, low 47°.

Pressure30.18 inHg
Wind10.8 mph NW
Humidity31%
Visibility—
Dew point30°
Sat, 2464° / 43°0.01Light rain
64 °Light rain

Allerton, Saturday, 24 October

Light rain. High 64°, low 43°.

Pressure30.18 inHg
Wind5.7 mph SE
Humidity29%
Visibility—
Dew point27°
Sun, 2563° / 48°0.61Rain
63 °Rain

Allerton, Sunday, 25 October

Rain. High 63°, low 48°.

Pressure29.77 inHg
Wind18.3 mph NW
Humidity77%
Visibility—
Dew point53°

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 Allerton, 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 Allerton, 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.