As of 20:34 CDT

Weather in Allen, IL

67°

Allen, Saturday, 10 October, 20:34

Clear. Feels like 66°. High 81°, low 58°.

Pressure30.00 inHg

Wind8.8 mph SE

Humidity60%

Visibility6.2 mi

Dew point53°

See detailed hourly forecast

Sun, 1182° / 53°

82 °

Allen, Sunday, 11 October

Clear. High 82°, low 53°.

Pressure29.97 inHg

Wind5.6 mph S

Humidity52%

Visibility6.2 mi

Dew point56°

Mon, 1287° / 61°

87 °

Allen, Monday, 12 October

Overcast. High 87°, low 61°.

Pressure29.88 inHg

Wind11.6 mph SW

Humidity50%

Visibility6.2 mi

Dew point62°

Tue, 1386° / 71°

0.01

86 °

Allen, Tuesday, 13 October

Light rain. High 86°, low 71°.

Pressure29.85 inHg

Wind8.6 mph W

Humidity58%

Visibility6.2 mi

Dew point66°

Wed, 1476° / 65°

0.05

76 °

Allen, Wednesday, 14 October

Light rain. High 76°, low 65°.

Pressure30.03 inHg

Wind8.2 mph N

Humidity68%

Visibility6.2 mi

Dew point63°

Thu, 1563° / 56°

63 °

Allen, Thursday, 15 October

Overcast. High 63°, low 56°.

Pressure30.24 inHg

Wind10.8 mph NE

Humidity63%

Visibility—

Dew point47°

Fri, 1658° / 40°

58 °

Allen, Friday, 16 October

Overcast. High 58°, low 40°.

Pressure30.36 inHg

Wind19.8 mph NW

Humidity45%

Visibility—

Dew point37°

Sat, 1744° / 33°

44 °

Allen, Saturday, 17 October

Clear. High 44°, low 33°.

Pressure30.50 inHg

Wind20.4 mph NW

Humidity37%

Visibility—

Dew point17°

Sun, 1851° / 30°

51 °

Allen, Sunday, 18 October

Overcast. High 51°, low 30°.

Pressure30.62 inHg

Wind9.9 mph S

Humidity29%

Visibility—

Dew point14°

Mon, 1960° / 37°

60 °

Allen, Monday, 19 October

Partly cloudy. High 60°, low 37°.

Pressure30.47 inHg

Wind13.5 mph S

Humidity27%

Visibility—

Dew point21°

Tue, 2066° / 41°

66 °

Allen, Tuesday, 20 October

Clear. High 66°, low 41°.

Pressure30.33 inHg

Wind11.3 mph S

Humidity25%

Visibility—

Dew point24°

Wed, 2170° / 46°

70 °

Allen, Wednesday, 21 October

Overcast. High 70°, low 46°.

Pressure30.12 inHg

Wind17.7 mph SW

Humidity27%

Visibility—

Dew point30°

Thu, 2268° / 49°

68 °

Allen, Thursday, 22 October

Clear. High 68°, low 49°.

Pressure30.15 inHg

Wind12.8 mph NW

Humidity39%

Visibility—

Dew point40°

Fri, 2363° / 46°

63 °

Allen, Friday, 23 October

Mostly clear. High 63°, low 46°.

Pressure30.30 inHg

Wind7.3 mph NE

Humidity39%

Visibility—

Dew point35°

Sat, 2462° / 49°

62 °

Allen, Saturday, 24 October

Overcast. High 62°, low 49°.

Pressure30.33 inHg

Wind6.2 mph NE

Humidity37%

Visibility—

Dew point32°

Sun, 2554° / 47°

0.02

54 °

Allen, Sunday, 25 October

Light rain. High 54°, low 47°.

Pressure30.27 inHg

Wind7.5 mph S

Humidity79%

Visibility—

Dew point47°

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 Allen, 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 Allen, 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.