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As of 04:21 CDT

Weather in Mackinaw, IL

45°Current weather

Mackinaw, Monday, 19 October, 04:21

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

Pressure30.39 inHg
Wind4.4 mph S
Humidity81%
Visibility6.2 mi
Dew point39°
Tue, 2070° / 43°0Clear
70 °Clear

Mackinaw, Tuesday, 20 October

Clear. High 70°, low 43°.

Pressure30.36 inHg
Wind3.4 mph SE
Humidity43%
Visibility6.2 mi
Dew point43°
Wed, 2169° / 45°0Clear
69 °Clear

Mackinaw, Wednesday, 21 October

Clear. High 69°, low 45°.

Pressure30.27 inHg
Wind2.5 mph SW
Humidity48%
Visibility6.2 mi
Dew point46°
Thu, 2270° / 50°0Clear
70 °Clear

Mackinaw, Thursday, 22 October

Clear. High 70°, low 50°.

Pressure30.30 inHg
Wind0.6 mph N
Humidity53%
Visibility6.2 mi
Dew point51°
Fri, 2368° / 49°0Clear
68 °Clear

Mackinaw, Friday, 23 October

Clear. High 68°, low 49°.

Pressure30.30 inHg
Wind6.8 mph SE
Humidity50%
Visibility—
Dew point46°
Sat, 2468° / 50°0Overcast
68 °Overcast

Mackinaw, Saturday, 24 October

Overcast. High 68°, low 50°.

Pressure30.39 inHg
Wind8.1 mph SE
Humidity45%
Visibility—
Dew point41°
Sun, 2569° / 57°0Overcast
69 °Overcast

Mackinaw, Sunday, 25 October

Overcast. High 69°, low 57°.

Pressure30.24 inHg
Wind14.1 mph SW
Humidity44%
Visibility—
Dew point45°
Mon, 2673° / 52°0Overcast
73 °Overcast

Mackinaw, Monday, 26 October

Overcast. High 73°, low 52°.

Pressure30.18 inHg
Wind12.3 mph SW
Humidity52%
Visibility—
Dew point50°
Tue, 2762° / 46°0.04Light rain
62 °Light rain

Mackinaw, Tuesday, 27 October

Light rain. High 62°, low 46°.

Pressure30.12 inHg
Wind13.2 mph N
Humidity79%
Visibility—
Dew point49°
Wed, 2846° / 35°0.02Light rain
46 °Light rain

Mackinaw, Wednesday, 28 October

Light rain. High 46°, low 35°.

Pressure30.39 inHg
Wind16.6 mph N
Humidity33%
Visibility—
Dew point18°
Thu, 2947° / 30°0Clear
47 °Clear

Mackinaw, Thursday, 29 October

Clear. High 47°, low 30°.

Pressure30.39 inHg
Wind7.6 mph N
Humidity33%
Visibility—
Dew point17°
Fri, 3052° / 31°0Clear
52 °Clear

Mackinaw, Friday, 30 October

Clear. High 52°, low 31°.

Pressure30.47 inHg
Wind7.4 mph SE
Humidity31%
Visibility—
Dew point18°
Sat, 3157° / 34°0Overcast
57 °Overcast

Mackinaw, Saturday, 31 October

Overcast. High 57°, low 34°.

Pressure30.45 inHg
Wind14.6 mph S
Humidity29%
Visibility—
Dew point19°
Sun, 0167° / 47°0Overcast
67 °Overcast

Mackinaw, Sunday, 1 November

Overcast. High 67°, low 47°.

Pressure30.30 inHg
Wind16.1 mph SW
Humidity29%
Visibility—
Dew point30°
Mon, 0269° / 52°0Overcast
69 °Overcast

Mackinaw, Monday, 2 November

Overcast. High 69°, low 52°.

Pressure30.15 inHg
Wind19 mph S
Humidity24%
Visibility—
Dew point26°
Tue, 0364° / 53°0.47Rain
64 °Rain

Mackinaw, Tuesday, 3 November

Rain. High 64°, low 53°.

Pressure30.21 inHg
Wind13 mph SW
Humidity92%
Visibility—
Dew point54°

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.