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As of 17:16 CDT

Weather in McCormick, IL

87°Current weather

McCormick, Saturday, 8 August, 17:16

Overcast. Feels like 96°. High 87°, low 72°.

Pressure30.00 inHg
Wind7.1 mph SW
Humidity69%
Visibility6.2 mi
Dew point75°
Sun, 0990° / 72°0Clear
90 °Clear

McCormick, Sunday, 9 August

Clear. High 90°, low 72°.

Pressure30.03 inHg
Wind10.4 mph S
Humidity48%
Visibility6.2 mi
Dew point66°
Mon, 1096° / 74°0Clear
96 °Clear

McCormick, Monday, 10 August

Clear. High 96°, low 74°.

Pressure30.03 inHg
Wind12.9 mph SW
Humidity47%
Visibility6.2 mi
Dew point69°
Tue, 1199° / 74°0Mostly clear
99 °Mostly clear

McCormick, Tuesday, 11 August

Mostly clear. High 99°, low 74°.

Pressure29.94 inHg
Wind14.7 mph SW
Humidity41%
Visibility6.2 mi
Dew point68°
Wed, 1295° / 78°0Overcast
95 °Overcast

McCormick, Wednesday, 12 August

Overcast. High 95°, low 78°.

Pressure29.85 inHg
Wind13.8 mph W
Humidity40%
Visibility6.2 mi
Dew point66°
Thu, 1385° / 71°0.29Rain
85 °Rain

McCormick, Thursday, 13 August

Rain. High 85°, low 71°.

Pressure29.91 inHg
Wind5.9 mph S
Humidity77%
Visibility—
Dew point71°
Fri, 1481° / 64°0.65Rain
81 °Rain

McCormick, Friday, 14 August

Rain. High 81°, low 64°.

Pressure30.09 inHg
Wind10.4 mph NE
Humidity57%
Visibility—
Dew point62°
Sat, 1582° / 57°0Overcast
82 °Overcast

McCormick, Saturday, 15 August

Overcast. High 82°, low 57°.

Pressure30.27 inHg
Wind6.9 mph E
Humidity37%
Visibility—
Dew point49°
Sun, 1685° / 60°0.01Light rain
85 °Light rain

McCormick, Sunday, 16 August

Light rain. High 85°, low 60°.

Pressure30.21 inHg
Wind6.3 mph S
Humidity38%
Visibility—
Dew point52°
Mon, 1786° / 70°0.2Light rain
86 °Light rain

McCormick, Monday, 17 August

Light rain. High 86°, low 70°.

Pressure30.00 inHg
Wind16.6 mph SW
Humidity61%
Visibility—
Dew point69°
Tue, 1894° / 72°0Overcast
94 °Overcast

McCormick, Tuesday, 18 August

Overcast. High 94°, low 72°.

Pressure29.94 inHg
Wind11.8 mph S
Humidity48%
Visibility—
Dew point67°
Wed, 1992° / 72°0Mostly clear
92 °Mostly clear

McCormick, Wednesday, 19 August

Mostly clear. High 92°, low 72°.

Pressure29.91 inHg
Wind7.5 mph SW
Humidity48%
Visibility—
Dew point67°
Thu, 2092° / 74°0.56Rain
92 °Rain

McCormick, Thursday, 20 August

Rain. High 92°, low 74°.

Pressure29.85 inHg
Wind11.2 mph W
Humidity55%
Visibility—
Dew point69°
Fri, 2181° / 71°0.19Light rain
81 °Light rain

McCormick, Friday, 21 August

Light rain. High 81°, low 71°.

Pressure29.88 inHg
Wind7.3 mph N
Humidity82%
Visibility—
Dew point74°
Sat, 2287° / 67°0Overcast
87 °Overcast

McCormick, Saturday, 22 August

Overcast. High 87°, low 67°.

Pressure29.91 inHg
Wind7.9 mph NE
Humidity48%
Visibility—
Dew point61°
Sun, 2379° / 64°0Overcast
79 °Overcast

McCormick, Sunday, 23 August

Overcast. High 79°, low 64°.

Pressure30.06 inHg
Wind10.5 mph NE
Humidity57%
Visibility—
Dew point60°

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 McCormick, 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 McCormick, 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.