As of 12:03 CDT

Weather in Mackinaw, IL

70°

Mackinaw, Tuesday, 20 October, 12:03

Clear. Feels like 68°. High 70°, low 42°.

Pressure30.39 inHg

Wind3.2 mph SE

Humidity47%

Visibility6.2 mi

Dew point48°

See detailed hourly forecast

Wed, 2172° / 42°

72 °

Mackinaw, Wednesday, 21 October

Clear. High 72°, low 42°.

Pressure30.27 inHg

Wind2.7 mph SW

Humidity51%

Visibility6.2 mi

Dew point47°

Thu, 2270° / 48°

70 °

Mackinaw, Thursday, 22 October

Clear. High 70°, low 48°.

Pressure30.30 inHg

Wind0.7 mph NE

Humidity57%

Visibility6.2 mi

Dew point53°

Fri, 2368° / 49°

68 °

Mackinaw, Friday, 23 October

Clear. High 68°, low 49°.

Pressure30.33 inHg

Wind6 mph SE

Humidity53%

Visibility6.2 mi

Dew point49°

Sat, 2469° / 49°

69 °

Mackinaw, Saturday, 24 October

Overcast. High 69°, low 49°.

Pressure30.36 inHg

Wind8.3 mph S

Humidity58%

Visibility6.2 mi

Dew point50°

Sun, 2573° / 52°

73 °

Mackinaw, Sunday, 25 October

Overcast. High 73°, low 52°.

Pressure30.36 inHg

Wind6.6 mph S

Humidity53%

Visibility—

Dew point50°

Mon, 2671° / 45°

0.04

71 °

Mackinaw, Monday, 26 October

Light rain. High 71°, low 45°.

Pressure30.09 inHg

Wind16.6 mph NW

Humidity34%

Visibility—

Dew point39°

Tue, 2748° / 38°

0.09

48 °

Mackinaw, Tuesday, 27 October

Light rain. High 48°, low 38°.

Pressure30.45 inHg

Wind16.5 mph NW

Humidity37%

Visibility—

Dew point22°

Wed, 2849° / 32°

49 °

Mackinaw, Wednesday, 28 October

Partly cloudy. High 49°, low 32°.

Pressure30.42 inHg

Wind10.2 mph SW

Humidity42%

Visibility—

Dew point23°

Thu, 2953° / 36°

53 °

Mackinaw, Thursday, 29 October

Clear. High 53°, low 36°.

Pressure30.12 inHg

Wind13.9 mph NW

Humidity49%

Visibility—

Dew point32°

Fri, 3045° / 34°

45 °

Mackinaw, Friday, 30 October

Clear. High 45°, low 34°.

Pressure30.42 inHg

Wind13.8 mph N

Humidity40%

Visibility—

Dew point21°

Sat, 3151° / 31°

51 °

Mackinaw, Saturday, 31 October

Overcast. High 51°, low 31°.

Pressure30.27 inHg

Wind11.2 mph SW

Humidity33%

Visibility—

Dew point18°

Sun, 0153° / 42°

53 °

Mackinaw, Sunday, 1 November

Overcast. High 53°, low 42°.

Pressure30.15 inHg

Wind10.2 mph SW

Humidity72%

Visibility—

Dew point39°

Mon, 0262° / 45°

62 °

Mackinaw, Monday, 2 November

Clear. High 62°, low 45°.

Pressure30.27 inHg

Wind9.4 mph S

Humidity50%

Visibility—

Dew point40°

Tue, 0363° / 45°

0.02

63 °

Mackinaw, Tuesday, 3 November

Light rain. High 63°, low 45°.

Pressure30.18 inHg

Wind16.3 mph S

Humidity42%

Visibility—

Dew point36°

Wed, 0461° / 51°

0.82

61 °

Mackinaw, Wednesday, 4 November

Rain. High 61°, low 51°.

Pressure29.94 inHg

Wind17.2 mph S

Humidity75%

Visibility—

Dew point50°

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 Mackinaw, 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 Mackinaw, 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.