As of 17:38 CDT

Weather in McCook, IL

86°Current weather

McCook, Monday, 12 October, 17:38

Overcast. Feels like 91°. High 87°, low 61°.

Pressure29.74 inHg
Wind15 mph SW
Humidity58%
Visibility6.2 mi
Dew point70°

Monthly outlook for McCook, IL: average high 68°, average low 54.2°. That is 4.6° above the climate normal for October. Precipitation is expected on 5 days (about 1.7 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 12 October (86.8°), the coolest 17 October (38.7°).

68°/54.2°
Average high / low
+4.6°
Above normal
5 / 5
Wet days / normal
1.7 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
12 October – 21 October68.6°60.9°+4.3°
22 October – 31 October67.2°57.2°+5.6°
1 November – 10 Novemberat normal52.7°—

October records over 66 years

89.2°3 October 2025All-time high
25.7°26 October 1962All-time low

Climate normals and records are computed from the nearest reference point — Summit (1 mi).

Tue, 1382° / 65°0.16Rain
82 °Rain

McCook, Tuesday, 13 October

Rain. High 82°, low 65°.

Pressure29.83 inHg
Wind9.1 mph W
Humidity61%
Visibility6.2 mi
Dew point62°
Wed, 1469° / 58°0.31Heavy rain
69 °Heavy rain

McCook, Wednesday, 14 October

Heavy rain. High 69°, low 58°.

Pressure30.06 inHg
Wind6.1 mph NE
Humidity71%
Visibility6.2 mi
Dew point59°
Thu, 1559° / 57°0.98Heavy rain
59 °Heavy rain

McCook, Thursday, 15 October

Heavy rain. High 59°, low 57°.

Pressure30.09 inHg
Wind7.1 mph E
Humidity95%
Visibility1.4 mi
Dew point57°
Fri, 1657° / 47°0.11Light rain
57 °Light rain

McCook, Friday, 16 October

Light rain. High 57°, low 47°.

Pressure30.21 inHg
Wind18.5 mph NW
Humidity57%
Visibility6.2 mi
Dew point38°
Sat, 1757° / 39°0Clear
57 °Clear

McCook, Saturday, 17 October

Clear. High 57°, low 39°.

Pressure30.47 inHg
Wind9.4 mph SW
Humidity43%
Visibility—
Dew point31°
Sun, 1862° / 45°0Clear
62 °Clear

McCook, Sunday, 18 October

Clear. High 62°, low 45°.

Pressure30.30 inHg
Wind11.9 mph SW
Humidity34%
Visibility—
Dew point29°
Mon, 1967° / 49°0Overcast
67 °Overcast

McCook, Monday, 19 October

Overcast. High 67°, low 49°.

Pressure30.30 inHg
Wind6.8 mph SW
Humidity40%
Visibility—
Dew point38°
Tue, 2071° / 58°0Overcast
71 °Overcast

McCook, Tuesday, 20 October

Overcast. High 71°, low 58°.

Pressure30.27 inHg
Wind5.1 mph SW
Humidity55%
Visibility—
Dew point50°
Wed, 2175° / 59°0Overcast
75 °Overcast

McCook, Wednesday, 21 October

Overcast. High 75°, low 59°.

Pressure30.21 inHg
Wind7 mph S
Humidity49%
Visibility—
Dew point51°
Thu, 2272° / 63°0Overcast
72 °Overcast

McCook, Thursday, 22 October

Overcast. High 72°, low 63°.

Pressure30.12 inHg
Wind11.7 mph S
Humidity42%
Visibility—
Dew point47°
Fri, 2377° / 67°0Overcast
77 °Overcast

McCook, Friday, 23 October

Overcast. High 77°, low 67°.

Pressure29.91 inHg
Wind14.6 mph S
Humidity38%
Visibility—
Dew point49°
Sat, 2471° / 50°0.15Light rain
71 °Light rain

McCook, Saturday, 24 October

Light rain. High 71°, low 50°.

Pressure29.71 inHg
Wind15.6 mph SW
Humidity57%
Visibility—
Dew point45°
Sun, 2556° / 48°0Overcast
56 °Overcast

McCook, Sunday, 25 October

Overcast. High 56°, low 48°.

Pressure30.03 inHg
Wind10.6 mph W
Humidity48%
Visibility—
Dew point36°
Mon, 2662° / 49°0Clear
62 °Clear

McCook, Monday, 26 October

Clear. High 62°, low 49°.

Pressure30.21 inHg
Wind3.8 mph E
Humidity43%
Visibility—
Dew point36°
Tue, 2763° / 52°0Partly cloudy
63 °Partly cloudy

McCook, Tuesday, 27 October

Partly cloudy. High 63°, low 52°.

Pressure29.94 inHg
Wind7.4 mph SW
Humidity43%
Visibility—
Dew point39°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2856° / 43°0.06Climate normal
56 °Climate normal

McCook, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high56°
Average low43°
Average precipitation0.06 in
Chance of precipitation20%
Record high74° (1999)
Record low28° (1976)
Thu, 2956° / 43°0.06Climate normal
56 °Climate normal

McCook, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high56°
Average low43°
Average precipitation0.06 in
Chance of precipitation20%
Record high79° (2024)
Record low29° (1980)
Fri, 3058° / 44°0.12Climate normal
58 °Climate normal

McCook, Friday, 30 October

Climate normal for this date — 60-year average.

Average high58°
Average low44°
Average precipitation0.12 in
Chance of precipitation28%
Record high78° (2024)
Record low28° (1988)
Sat, 3156° / 44°0.13Climate normal
56 °Climate normal

McCook, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high56°
Average low44°
Average precipitation0.13 in
Chance of precipitation42%
Record high74° (1974)
Record low26° (2023)
Sun, 0155° / 43°0.18Climate normal
55 °Climate normal

McCook, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high55°
Average low43°
Average precipitation0.18 in
Chance of precipitation42%
Record high73° (2016)
Record low19° (2019)
Mon, 0254° / 42°0.12Climate normal
54 °Climate normal

McCook, Monday, 2 November

Climate normal for this date — 60-year average.

Average high54°
Average low42°
Average precipitation0.12 in
Chance of precipitation40%
Record high74° (1961)
Record low24° (1991)
Tue, 0353° / 40°0.07Climate normal
53 °Climate normal

McCook, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high53°
Average low40°
Average precipitation0.07 in
Chance of precipitation27%
Record high72° (1987)
Record low19° (1991)
Wed, 0453° / 42°0.09Climate normal
53 °Climate normal

McCook, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high53°
Average low42°
Average precipitation0.09 in
Chance of precipitation28%
Record high71° (2015)
Record low18° (1991)
Thu, 0553° / 41°0.12Climate normal
53 °Climate normal

McCook, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high53°
Average low41°
Average precipitation0.12 in
Chance of precipitation32%
Record high75° (1978)
Record low20° (1991)
Fri, 0653° / 39°0.07Climate normal
53 °Climate normal

McCook, Friday, 6 November

Climate normal for this date — 60-year average.

Average high53°
Average low39°
Average precipitation0.07 in
Chance of precipitation32%
Record high72° (1975)
Record low25° (1991)
Sat, 0752° / 39°0.06Climate normal
52 °Climate normal

McCook, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high52°
Average low39°
Average precipitation0.06 in
Chance of precipitation22%
Record high70° (2020)
Record low21° (1991)
Sun, 0851° / 39°0.06Climate normal
51 °Climate normal

McCook, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high51°
Average low39°
Average precipitation0.06 in
Chance of precipitation20%
Record high75° (2020)
Record low16° (1991)
Mon, 0952° / 39°0.13Climate normal
52 °Climate normal

McCook, Monday, 9 November

Climate normal for this date — 60-year average.

Average high52°
Average low39°
Average precipitation0.13 in
Chance of precipitation35%
Record high72° (2020)
Record low20° (1991)
Tue, 1051° / 38°0.13Climate normal
51 °Climate normal

McCook, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high51°
Average low38°
Average precipitation0.13 in
Chance of precipitation40%
Record high74° (2020)
Record low18° (2018)

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 McCook, 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 McCook, 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.