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As of 09:23 CDT

Weather in Allendale, IL

66°Current weather

Allendale, Wednesday, 7 October, 09:23

Clear. Feels like 65°. High 82°, low 50°.

Pressure30.00 inHg
Wind5.7 mph SW
Humidity59%
Visibility6.2 mi
Dew point52°
Thu, 0880° / 51°0Clear
80 °Clear

Allendale, Thursday, 8 October

Clear. High 80°, low 51°.

Pressure30.12 inHg
Wind2.6 mph E
Humidity31%
Visibility6.2 mi
Dew point43°
Fri, 0983° / 53°0Clear
83 °Clear

Allendale, Friday, 9 October

Clear. High 83°, low 53°.

Pressure30.18 inHg
Wind8.2 mph SE
Humidity32%
Visibility6.2 mi
Dew point47°
Sat, 1079° / 59°0.02Light rain
79 °Light rain

Allendale, Saturday, 10 October

Light rain. High 79°, low 59°.

Pressure30.15 inHg
Wind6 mph SE
Humidity40%
Visibility6.2 mi
Dew point53°
Sun, 1167° / 62°1.09Rain
67 °Rain

Allendale, Sunday, 11 October

Rain. High 67°, low 62°.

Pressure29.77 inHg
Wind13.9 mph NE
Humidity96%
Visibility—
Dew point65°
Mon, 1283° / 58°0Clear
83 °Clear

Allendale, Monday, 12 October

Clear. High 83°, low 58°.

Pressure29.88 inHg
Wind9.9 mph SW
Humidity58%
Visibility—
Dew point60°
Tue, 1382° / 59°0Mostly clear
82 °Mostly clear

Allendale, Tuesday, 13 October

Mostly clear. High 82°, low 59°.

Pressure29.91 inHg
Wind15.3 mph NW
Humidity52%
Visibility—
Dew point61°
Wed, 1468° / 47°0Mostly clear
68 °Mostly clear

Allendale, Wednesday, 14 October

Mostly clear. High 68°, low 47°.

Pressure30.18 inHg
Wind11.7 mph NE
Humidity32%
Visibility—
Dew point32°
Thu, 1580° / 50°0Clear
80 °Clear

Allendale, Thursday, 15 October

Clear. High 80°, low 50°.

Pressure30.00 inHg
Wind11.3 mph SE
Humidity23%
Visibility—
Dew point32°
Fri, 1689° / 64°0.23Rain
89 °Rain

Allendale, Friday, 16 October

Rain. High 89°, low 64°.

Pressure29.85 inHg
Wind13.6 mph SW
Humidity40%
Visibility—
Dew point58°
Sat, 1767° / 50°0Overcast
67 °Overcast

Allendale, Saturday, 17 October

Overcast. High 67°, low 50°.

Pressure30.03 inHg
Wind10.2 mph NW
Humidity40%
Visibility—
Dew point37°
Sun, 1863° / 45°0Mostly clear
63 °Mostly clear

Allendale, Sunday, 18 October

Mostly clear. High 63°, low 45°.

Pressure30.09 inHg
Wind14.5 mph W
Humidity39%
Visibility—
Dew point34°
Mon, 1962° / 42°0Clear
62 °Clear

Allendale, Monday, 19 October

Clear. High 62°, low 42°.

Pressure30.21 inHg
Wind8.5 mph NW
Humidity44%
Visibility—
Dew point36°
Tue, 2070° / 46°0Clear
70 °Clear

Allendale, Tuesday, 20 October

Clear. High 70°, low 46°.

Pressure30.21 inHg
Wind7.8 mph NW
Humidity33%
Visibility—
Dew point35°
Wed, 2162° / 46°0Clear
62 °Clear

Allendale, Wednesday, 21 October

Clear. High 62°, low 46°.

Pressure30.24 inHg
Wind12.5 mph NE
Humidity37%
Visibility—
Dew point33°
Thu, 2260° / 39°0Overcast
60 °Overcast

Allendale, Thursday, 22 October

Overcast. High 60°, low 39°.

Pressure30.24 inHg
Wind7.1 mph E
Humidity31%
Visibility—
Dew point25°

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 Allendale, 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 Allendale, 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.