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As of 16:03 CDT

Weather in Allendale, IL

90°Current weather

Allendale, Saturday, 8 August, 16:03

Overcast. Feels like 99°. High 90°, low 73°.

Pressure30.00 inHg
Wind8.7 mph SW
Humidity61%
Visibility6.2 mi
Dew point75°
Sun, 0992° / 74°0Mostly clear
92 °Mostly clear

Allendale, Sunday, 9 August

Mostly clear. High 92°, low 74°.

Pressure30.03 inHg
Wind11.7 mph S
Humidity67%
Visibility6.2 mi
Dew point73°
Mon, 1093° / 76°0Clear
93 °Clear

Allendale, Monday, 10 August

Clear. High 93°, low 76°.

Pressure30.00 inHg
Wind15.3 mph SW
Humidity63%
Visibility6.2 mi
Dew point74°
Tue, 1195° / 75°0Mostly clear
95 °Mostly clear

Allendale, Tuesday, 11 August

Mostly clear. High 95°, low 75°.

Pressure29.91 inHg
Wind14.4 mph SW
Humidity58%
Visibility6.2 mi
Dew point73°
Wed, 1289° / 72°0.07Light rain
89 °Light rain

Allendale, Wednesday, 12 August

Light rain. High 89°, low 72°.

Pressure29.83 inHg
Wind9 mph W
Humidity60%
Visibility6.2 mi
Dew point72°
Thu, 1381° / 70°1.72Heavy rain
81 °Heavy rain

Allendale, Thursday, 13 August

Heavy rain. High 81°, low 70°.

Pressure29.88 inHg
Wind11.8 mph S
Humidity79%
Visibility—
Dew point72°
Fri, 1476° / 62°0.1Light rain
76 °Light rain

Allendale, Friday, 14 August

Light rain. High 76°, low 62°.

Pressure30.12 inHg
Wind11.8 mph N
Humidity61%
Visibility—
Dew point60°
Sat, 1576° / 55°0Partly cloudy
76 °Partly cloudy

Allendale, Saturday, 15 August

Partly cloudy. High 76°, low 55°.

Pressure30.30 inHg
Wind7.5 mph E
Humidity55%
Visibility—
Dew point54°
Sun, 1679° / 58°0.01Light rain
79 °Light rain

Allendale, Sunday, 16 August

Light rain. High 79°, low 58°.

Pressure30.21 inHg
Wind7.7 mph SE
Humidity56%
Visibility—
Dew point57°
Mon, 1784° / 66°0.26Rain
84 °Rain

Allendale, Monday, 17 August

Rain. High 84°, low 66°.

Pressure30.00 inHg
Wind15.5 mph SW
Humidity70%
Visibility—
Dew point71°
Tue, 1884° / 70°0.08Light rain
84 °Light rain

Allendale, Tuesday, 18 August

Light rain. High 84°, low 70°.

Pressure29.94 inHg
Wind9.6 mph S
Humidity75%
Visibility—
Dew point73°
Wed, 1988° / 70°0Partly cloudy
88 °Partly cloudy

Allendale, Wednesday, 19 August

Partly cloudy. High 88°, low 70°.

Pressure29.94 inHg
Wind6.6 mph S
Humidity65%
Visibility—
Dew point70°
Thu, 2083° / 72°0.66Rain
83 °Rain

Allendale, Thursday, 20 August

Rain. High 83°, low 72°.

Pressure29.88 inHg
Wind7.1 mph N
Humidity80%
Visibility—
Dew point71°
Fri, 2181° / 70°0.02Light rain
81 °Light rain

Allendale, Friday, 21 August

Light rain. High 81°, low 70°.

Pressure29.91 inHg
Wind10.7 mph N
Humidity71%
Visibility—
Dew point69°
Sat, 2282° / 64°0Overcast
82 °Overcast

Allendale, Saturday, 22 August

Overcast. High 82°, low 64°.

Pressure29.94 inHg
Wind11.9 mph N
Humidity59%
Visibility—
Dew point63°
Sun, 2375° / 59°0.01Light rain
75 °Light rain

Allendale, Sunday, 23 August

Light rain. High 75°, low 59°.

Pressure30.12 inHg
Wind13.6 mph E
Humidity59%
Visibility—
Dew point56°

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.