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As of 21:32 CDT

Weather in Macoupin, IL

70°Current weather

Macoupin, Thursday, 15 October, 21:32

Overcast. Feels like 71°. High 77°, low 66°.

Pressure29.91 inHg
Wind16.1 mph W
Humidity87%
Visibility6.2 mi
Dew point66°
Fri, 1667° / 50°0.06Light rain
67 °Light rain

Macoupin, Friday, 16 October

Light rain. High 67°, low 50°.

Pressure30.21 inHg
Wind16.7 mph NW
Humidity49%
Visibility6.2 mi
Dew point37°
Sat, 1757° / 41°0Clear
57 °Clear

Macoupin, Saturday, 17 October

Clear. High 57°, low 41°.

Pressure30.59 inHg
Wind2.6 mph NE
Humidity44%
Visibility6.2 mi
Dew point31°
Sun, 1863° / 42°0Clear
63 °Clear

Macoupin, Sunday, 18 October

Clear. High 63°, low 42°.

Pressure30.50 inHg
Wind8.5 mph S
Humidity42%
Visibility6.2 mi
Dew point36°
Mon, 1968° / 43°0Clear
68 °Clear

Macoupin, Monday, 19 October

Clear. High 68°, low 43°.

Pressure30.39 inHg
Wind5.5 mph S
Humidity47%
Visibility6.2 mi
Dew point42°
Tue, 2069° / 45°0Overcast
69 °Overcast

Macoupin, Tuesday, 20 October

Overcast. High 69°, low 45°.

Pressure30.33 inHg
Wind5.1 mph S
Humidity37%
Visibility—
Dew point38°
Wed, 2173° / 49°0Mostly clear
73 °Mostly clear

Macoupin, Wednesday, 21 October

Mostly clear. High 73°, low 49°.

Pressure30.27 inHg
Wind5.5 mph SE
Humidity37%
Visibility—
Dew point41°
Thu, 2276° / 54°0Overcast
76 °Overcast

Macoupin, Thursday, 22 October

Overcast. High 76°, low 54°.

Pressure30.24 inHg
Wind7.6 mph SE
Humidity28%
Visibility—
Dew point37°
Fri, 2377° / 56°0Overcast
77 °Overcast

Macoupin, Friday, 23 October

Overcast. High 77°, low 56°.

Pressure30.15 inHg
Wind10.4 mph SE
Humidity27%
Visibility—
Dew point36°
Sat, 2476° / 58°0Overcast
76 °Overcast

Macoupin, Saturday, 24 October

Overcast. High 76°, low 58°.

Pressure30.18 inHg
Wind9 mph SE
Humidity29%
Visibility—
Dew point39°
Sun, 2575° / 55°0Overcast
75 °Overcast

Macoupin, Sunday, 25 October

Overcast. High 75°, low 55°.

Pressure30.21 inHg
Wind7 mph E
Humidity30%
Visibility—
Dew point38°
Mon, 2679° / 58°0Overcast
79 °Overcast

Macoupin, Monday, 26 October

Overcast. High 79°, low 58°.

Pressure30.00 inHg
Wind15 mph S
Humidity34%
Visibility—
Dew point42°
Tue, 2767° / 45°0Clear
67 °Clear

Macoupin, Tuesday, 27 October

Clear. High 67°, low 45°.

Pressure30.06 inHg
Wind9.4 mph W
Humidity41%
Visibility—
Dew point37°
Wed, 2860° / 51°0.8Heavy rain
60 °Heavy rain

Macoupin, Wednesday, 28 October

Heavy rain. High 60°, low 51°.

Pressure29.65 inHg
Wind21.7 mph W
Humidity83%
Visibility—
Dew point51°
Thu, 2961° / 44°0Mostly clear
61 °Mostly clear

Macoupin, Thursday, 29 October

Mostly clear. High 61°, low 44°.

Pressure29.97 inHg
Wind18.9 mph W
Humidity50%
Visibility—
Dew point38°
Fri, 3067° / 47°0Partly cloudy
67 °Partly cloudy

Macoupin, Friday, 30 October

Partly cloudy. High 67°, low 47°.

Pressure30.06 inHg
Wind6.6 mph NW
Humidity39%
Visibility—
Dew point37°

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.