As of 11:12 CST

Weather in Macoupin, IL

43°

Macoupin, Saturday, 14 November, 11:12

Clear. Feels like 41°. High 45°, low 27°.

Pressure30.33 inHg

Wind4.2 mph N

Humidity57%

Visibility6.2 mi

Dew point30°

See detailed hourly forecast

Sun, 1551° / 27°

51 °

Macoupin, Sunday, 15 November

Clear. High 51°, low 27°.

Pressure30.45 inHg

Wind1.3 mph NE

Humidity51%

Visibility6.2 mi

Dew point29°

Mon, 1654° / 31°

54 °

Macoupin, Monday, 16 November

Clear. High 54°, low 31°.

Pressure30.53 inHg

Wind3 mph SW

Humidity46%

Visibility6.2 mi

Dew point32°

Tue, 1755° / 35°

55 °

Macoupin, Tuesday, 17 November

Clear. High 55°, low 35°.

Pressure30.50 inHg

Wind6 mph S

Humidity52%

Visibility6.2 mi

Dew point36°

Wed, 1859° / 39°

59 °

Macoupin, Wednesday, 18 November

Overcast. High 59°, low 39°.

Pressure30.36 inHg

Wind11.1 mph S

Humidity51%

Visibility—

Dew point37°

Thu, 1962° / 47°

62 °

Macoupin, Thursday, 19 November

Partly cloudy. High 62°, low 47°.

Pressure30.27 inHg

Wind9.8 mph S

Humidity58%

Visibility—

Dew point43°

Fri, 2070° / 51°

70 °

Macoupin, Friday, 20 November

Partly cloudy. High 70°, low 51°.

Pressure30.21 inHg

Wind12.3 mph S

Humidity53%

Visibility—

Dew point49°

Sat, 2167° / 53°

0.11

67 °

Macoupin, Saturday, 21 November

Light rain. High 67°, low 53°.

Pressure29.94 inHg

Wind22.3 mph SW

Humidity43%

Visibility—

Dew point42°

Sun, 2250° / 38°

50 °

Macoupin, Sunday, 22 November

Overcast. High 50°, low 38°.

Pressure30.24 inHg

Wind18.8 mph W

Humidity54%

Visibility—

Dew point32°

Mon, 2346° / 31°

46 °

Macoupin, Monday, 23 November

Clear. High 46°, low 31°.

Pressure30.36 inHg

Wind9.3 mph N

Humidity34%

Visibility—

Dew point16°

Tue, 2448° / 29°

48 °

Macoupin, Tuesday, 24 November

Overcast. High 48°, low 29°.

Pressure30.30 inHg

Wind10 mph S

Humidity25%

Visibility—

Dew point10°

Wed, 2553° / 39°

0.17

53 °

Macoupin, Wednesday, 25 November

Rain. High 53°, low 39°.

Pressure30.09 inHg

Wind13.2 mph S

Humidity29%

Visibility—

Dew point20°

Thu, 2659° / 45°

0.01

59 °

Macoupin, Thursday, 26 November

Light rain. High 59°, low 45°.

Pressure30.00 inHg

Wind17.4 mph S

Humidity69%

Visibility—

Dew point44°

Fri, 2768° / 57°

68 °

Macoupin, Friday, 27 November

Overcast. High 68°, low 57°.

Pressure29.85 inHg

Wind28.4 mph SE

Humidity62%

Visibility—

Dew point52°

Sat, 2863° / 38°

0.73

63 °

Macoupin, Saturday, 28 November

Rain. High 63°, low 38°.

Pressure29.91 inHg

Wind23.9 mph S

Humidity57%

Visibility—

Dew point34°

Sun, 2944° / 31°

44 °

Macoupin, Sunday, 29 November

Clear. High 44°, low 31°.

Pressure30.33 inHg

Wind13.6 mph NW

Humidity40%

Visibility—

Dew point17°

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.