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As of 19:20 CDT

Weather in Mark, IL

67°Current weather

Mark, Tuesday, 6 October, 19:20

Clear. Feels like 66°. High 75°, low 49°.

Pressure29.88 inHg
Wind8.6 mph S
Humidity55%
Visibility6.2 mi
Dew point51°
Wed, 0779° / 55°0Clear
79 °Clear

Mark, Wednesday, 7 October

Clear. High 79°, low 55°.

Pressure29.88 inHg
Wind5.7 mph NW
Humidity70%
Visibility6.2 mi
Dew point62°
Thu, 0868° / 52°0Clear
68 °Clear

Mark, Thursday, 8 October

Clear. High 68°, low 52°.

Pressure30.15 inHg
Wind5.7 mph NW
Humidity46%
Visibility6.2 mi
Dew point45°
Fri, 0976° / 49°0Overcast
76 °Overcast

Mark, Friday, 9 October

Overcast. High 76°, low 49°.

Pressure30.15 inHg
Wind10.1 mph S
Humidity46%
Visibility6.2 mi
Dew point48°
Sat, 1081° / 61°0Clear
81 °Clear

Mark, Saturday, 10 October

Clear. High 81°, low 61°.

Pressure30.03 inHg
Wind8 mph S
Humidity51%
Visibility6.2 mi
Dew point56°
Sun, 1169° / 57°0.07Light rain
69 °Light rain

Mark, Sunday, 11 October

Light rain. High 69°, low 57°.

Pressure29.80 inHg
Wind12.1 mph NE
Humidity77%
Visibility—
Dew point58°
Mon, 1273° / 54°0Mostly clear
73 °Mostly clear

Mark, Monday, 12 October

Mostly clear. High 73°, low 54°.

Pressure30.03 inHg
Wind10.7 mph E
Humidity55%
Visibility—
Dew point54°
Tue, 1365° / 56°0Light rain
65 °Light rain

Mark, Tuesday, 13 October

Light rain. High 65°, low 56°.

Pressure30.09 inHg
Wind11.9 mph E
Humidity69%
Visibility—
Dew point51°
Wed, 1482° / 57°0Clear
82 °Clear

Mark, Wednesday, 14 October

Clear. High 82°, low 57°.

Pressure29.97 inHg
Wind16.6 mph S
Humidity50%
Visibility—
Dew point56°
Thu, 1576° / 69°0.18Light rain
76 °Light rain

Mark, Thursday, 15 October

Light rain. High 76°, low 69°.

Pressure29.80 inHg
Wind21.4 mph S
Humidity61%
Visibility—
Dew point60°
Fri, 1656° / 48°0.02Light rain
56 °Light rain

Mark, Friday, 16 October

Light rain. High 56°, low 48°.

Pressure30.27 inHg
Wind16.2 mph NW
Humidity68%
Visibility—
Dew point40°
Sat, 1751° / 46°0.79Rain
51 °Rain

Mark, Saturday, 17 October

Rain. High 51°, low 46°.

Pressure30.27 inHg
Wind15.9 mph E
Humidity92%
Visibility—
Dew point46°
Sun, 1855° / 49°1.06Rain
55 °Rain

Mark, Sunday, 18 October

Rain. High 55°, low 49°.

Pressure30.09 inHg
Wind13.5 mph E
Humidity97%
Visibility—
Dew point55°
Mon, 1955° / 39°0.02Light rain
55 °Light rain

Mark, Monday, 19 October

Light rain. High 55°, low 39°.

Pressure30.24 inHg
Wind9.9 mph W
Humidity51%
Visibility—
Dew point33°
Tue, 2060° / 43°0Partly cloudy
60 °Partly cloudy

Mark, Tuesday, 20 October

Partly cloudy. High 60°, low 43°.

Pressure30.03 inHg
Wind10.4 mph W
Humidity42%
Visibility—
Dew point34°
Wed, 2155° / 39°0Mostly clear
55 °Mostly clear

Mark, Wednesday, 21 October

Mostly clear. High 55°, low 39°.

Pressure30.09 inHg
Wind7.8 mph SW
Humidity49%
Visibility—
Dew point32°

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 Mark, 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 Mark, 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.