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As of 10:36 CDT

Weather in Macoupin, IL

56°Current weather

Macoupin, Monday, 19 October, 10:36

Partly cloudy. Feels like 54°. High 69°, low 40°.

Pressure30.42 inHg
Wind3.3 mph S
Humidity62%
Visibility6.2 mi
Dew point43°
Tue, 2071° / 43°0Clear
71 °Clear

Macoupin, Tuesday, 20 October

Clear. High 71°, low 43°.

Pressure30.36 inHg
Wind2.2 mph SE
Humidity49%
Visibility6.2 mi
Dew point47°
Wed, 2171° / 45°0Mostly clear
71 °Mostly clear

Macoupin, Wednesday, 21 October

Mostly clear. High 71°, low 45°.

Pressure30.30 inHg
Wind1.7 mph SW
Humidity49%
Visibility6.2 mi
Dew point48°
Thu, 2271° / 48°0Clear
71 °Clear

Macoupin, Thursday, 22 October

Clear. High 71°, low 48°.

Pressure30.30 inHg
Wind4.9 mph NE
Humidity49%
Visibility6.2 mi
Dew point49°
Fri, 2369° / 49°0Clear
69 °Clear

Macoupin, Friday, 23 October

Clear. High 69°, low 49°.

Pressure30.30 inHg
Wind7.5 mph SE
Humidity48%
Visibility—
Dew point45°
Sat, 2469° / 49°0Overcast
69 °Overcast

Macoupin, Saturday, 24 October

Overcast. High 69°, low 49°.

Pressure30.36 inHg
Wind8.1 mph SE
Humidity43%
Visibility—
Dew point41°
Sun, 2578° / 55°0Overcast
78 °Overcast

Macoupin, Sunday, 25 October

Overcast. High 78°, low 55°.

Pressure30.30 inHg
Wind10.2 mph SW
Humidity32%
Visibility—
Dew point41°
Mon, 2675° / 59°0Overcast
75 °Overcast

Macoupin, Monday, 26 October

Overcast. High 75°, low 59°.

Pressure30.21 inHg
Wind9 mph S
Humidity42%
Visibility—
Dew point45°
Tue, 2763° / 45°0.12Light rain
63 °Light rain

Macoupin, Tuesday, 27 October

Light rain. High 63°, low 45°.

Pressure30.03 inHg
Wind17.4 mph NW
Humidity56%
Visibility—
Dew point46°
Wed, 2846° / 34°0Clear
46 °Clear

Macoupin, Wednesday, 28 October

Clear. High 46°, low 34°.

Pressure30.39 inHg
Wind16.8 mph NW
Humidity28%
Visibility—
Dew point12°
Thu, 2954° / 30°0Mostly clear
54 °Mostly clear

Macoupin, Thursday, 29 October

Mostly clear. High 54°, low 30°.

Pressure30.30 inHg
Wind7.8 mph S
Humidity24%
Visibility—
Dew point13°
Fri, 3053° / 39°0Overcast
53 °Overcast

Macoupin, Friday, 30 October

Overcast. High 53°, low 39°.

Pressure30.03 inHg
Wind12.3 mph S
Humidity26%
Visibility—
Dew point15°
Sat, 3147° / 45°0.3Light rain
47 °Light rain

Macoupin, Saturday, 31 October

Light rain. High 47°, low 45°.

Pressure30.09 inHg
Wind11.5 mph S
Humidity89%
Visibility—
Dew point43°
Sun, 0166° / 47°0.02Light rain
66 °Light rain

Macoupin, Sunday, 1 November

Light rain. High 66°, low 47°.

Pressure29.97 inHg
Wind17 mph NW
Humidity65%
Visibility—
Dew point48°
Mon, 0253° / 40°0Overcast
53 °Overcast

Macoupin, Monday, 2 November

Overcast. High 53°, low 40°.

Pressure30.18 inHg
Wind18.2 mph NW
Humidity41%
Visibility—
Dew point27°
Tue, 0347° / 37°0Overcast
47 °Overcast

Macoupin, Tuesday, 3 November

Overcast. High 47°, low 37°.

Pressure30.06 inHg
Wind6.1 mph NW
Humidity66%
Visibility—
Dew point33°

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 Macoupin, 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 Macoupin, 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.