As of 03:47 CDT

Weather in McCook, IL

65°Current weather

McCook, Wednesday, 14 October, 03:47

Overcast. Feels like 66°. High 71°, low 60°.

Pressure29.91 inHg
Wind0 mph N
Humidity95%
Visibility2.9 mi
Dew point64°

Monthly outlook for McCook, IL: average high 59.8°, average low 47.3°. That is 0.6° above the climate normal for October. Precipitation is expected on 4 days (about 2.6 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 14 October (71.3°), the coolest 26 October (37.8°).

59.8°/47.3°
Average high / low
+0.6°
Above normal
4 / 5
Wet days / normal
2.6 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
14 October – 23 October62.8°60.1°+1.5°
24 October – 2 November54.8°56.2°-0.8°
3 November – 12 Novemberat normal51.3°—

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).

Thu, 1567° / 57°2.05Heavy rain
67 °Heavy rain

McCook, Thursday, 15 October

Heavy rain. High 67°, low 57°.

Pressure29.97 inHg
Wind8.2 mph E
Humidity93%
Visibility3.7 mi
Dew point59°
Fri, 1662° / 46°0.21Rain
62 °Rain

McCook, Friday, 16 October

Rain. High 62°, low 46°.

Pressure30.00 inHg
Wind14 mph NW
Humidity61%
Visibility6.2 mi
Dew point42°
Sat, 1754° / 39°0Clear
54 °Clear

McCook, Saturday, 17 October

Clear. High 54°, low 39°.

Pressure30.56 inHg
Wind3.2 mph NW
Humidity56%
Visibility6.2 mi
Dew point36°
Sun, 1859° / 43°0Clear
59 °Clear

McCook, Sunday, 18 October

Clear. High 59°, low 43°.

Pressure30.45 inHg
Wind10.8 mph SW
Humidity48%
Visibility—
Dew point36°
Mon, 1963° / 42°0Overcast
63 °Overcast

McCook, Monday, 19 October

Overcast. High 63°, low 42°.

Pressure30.39 inHg
Wind7.5 mph SW
Humidity55%
Visibility—
Dew point42°
Tue, 2069° / 53°0Clear
69 °Clear

McCook, Tuesday, 20 October

Clear. High 69°, low 53°.

Pressure30.27 inHg
Wind4.9 mph W
Humidity39%
Visibility—
Dew point40°
Wed, 2170° / 55°0Clear
70 °Clear

McCook, Wednesday, 21 October

Clear. High 70°, low 55°.

Pressure30.09 inHg
Wind10.5 mph SW
Humidity45%
Visibility—
Dew point45°
Thu, 2261° / 50°0Light rain
61 °Light rain

McCook, Thursday, 22 October

Light rain. High 61°, low 50°.

Pressure30.27 inHg
Wind11.2 mph NE
Humidity40%
Visibility—
Dew point32°
Fri, 2354° / 47°0Clear
54 °Clear

McCook, Friday, 23 October

Clear. High 54°, low 47°.

Pressure30.42 inHg
Wind8.5 mph NE
Humidity41%
Visibility—
Dew point29°
Sat, 2458° / 46°0Overcast
58 °Overcast

McCook, Saturday, 24 October

Overcast. High 58°, low 46°.

Pressure30.24 inHg
Wind6.7 mph SW
Humidity46%
Visibility—
Dew point35°
Sun, 2552° / 43°0.12Light rain
52 °Light rain

McCook, Sunday, 25 October

Light rain. High 52°, low 43°.

Pressure29.97 inHg
Wind12.2 mph NW
Humidity73%
Visibility—
Dew point41°
Mon, 2651° / 38°0Mostly clear
51 °Mostly clear

McCook, Monday, 26 October

Mostly clear. High 51°, low 38°.

Pressure30.06 inHg
Wind8.8 mph NW
Humidity32%
Visibility—
Dew point19°
Tue, 2756° / 45°0Mostly clear
56 °Mostly clear

McCook, Tuesday, 27 October

Mostly clear. High 56°, low 45°.

Pressure30.00 inHg
Wind5 mph E
Humidity37%
Visibility—
Dew point28°
Wed, 2858° / 44°0Partly cloudy
58 °Partly cloudy

McCook, Wednesday, 28 October

Partly cloudy. High 58°, low 44°.

Pressure30.00 inHg
Wind6.1 mph E
Humidity34%
Visibility—
Dew point27°
Thu, 2954° / 47°0Overcast
54 °Overcast

McCook, Thursday, 29 October

Overcast. High 54°, low 47°.

Pressure29.97 inHg
Wind7.3 mph E
Humidity52%
Visibility—
Dew point36°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Wed, 1148° / 36°0.08Climate normal
48 °Climate normal

McCook, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high48°
Average low36°
Average precipitation0.08 in
Chance of precipitation30%
Record high70° (1964)
Record low17° (2019)
Thu, 1247° / 35°0.06Climate normal
47 °Climate normal

McCook, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high47°
Average low35°
Average precipitation0.06 in
Chance of precipitation22%
Record high68° (1964)
Record low4° (2019)

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.