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As of 13:14 CDT

Weather in Marion, IL

72°Current weather

Marion, Wednesday, 21 October, 13:14

Clear. Feels like 70°. High 72°, low 45°.

Pressure30.27 inHg
Wind4.6 mph NE
Humidity42%
Visibility6.2 mi
Dew point48°
Thu, 2274° / 46°0Clear
74 °Clear

Marion, Thursday, 22 October

Clear. High 74°, low 46°.

Pressure30.27 inHg
Wind3 mph N
Humidity48%
Visibility6.2 mi
Dew point49°
Fri, 2372° / 49°0Clear
72 °Clear

Marion, Friday, 23 October

Clear. High 72°, low 49°.

Pressure30.30 inHg
Wind4.5 mph E
Humidity48%
Visibility6.2 mi
Dew point49°
Sat, 2473° / 49°0Partly cloudy
73 °Partly cloudy

Marion, Saturday, 24 October

Partly cloudy. High 73°, low 49°.

Pressure30.36 inHg
Wind3.6 mph SE
Humidity49%
Visibility6.2 mi
Dew point49°
Sun, 2574° / 53°0Overcast
74 °Overcast

Marion, Sunday, 25 October

Overcast. High 74°, low 53°.

Pressure30.39 inHg
Wind3.5 mph SW
Humidity48%
Visibility6.2 mi
Dew point49°
Mon, 2672° / 53°0Overcast
72 °Overcast

Marion, Monday, 26 October

Overcast. High 72°, low 53°.

Pressure30.27 inHg
Wind5.7 mph S
Humidity44%
Visibility—
Dew point46°
Tue, 2775° / 57°0Overcast
75 °Overcast

Marion, Tuesday, 27 October

Overcast. High 75°, low 57°.

Pressure30.24 inHg
Wind5.5 mph S
Humidity34%
Visibility—
Dew point42°
Wed, 2878° / 58°0Clear
78 °Clear

Marion, Wednesday, 28 October

Clear. High 78°, low 58°.

Pressure30.15 inHg
Wind12.7 mph SW
Humidity27%
Visibility—
Dew point39°
Thu, 2974° / 61°0Light rain
74 °Light rain

Marion, Thursday, 29 October

Light rain. High 74°, low 61°.

Pressure30.15 inHg
Wind10.1 mph SW
Humidity33%
Visibility—
Dew point42°
Fri, 3068° / 56°0.01Light rain
68 °Light rain

Marion, Friday, 30 October

Light rain. High 68°, low 56°.

Pressure30.15 inHg
Wind9 mph E
Humidity64%
Visibility—
Dew point53°
Sat, 3181° / 57°0Overcast
81 °Overcast

Marion, Saturday, 31 October

Overcast. High 81°, low 57°.

Pressure29.97 inHg
Wind19 mph S
Humidity35%
Visibility—
Dew point47°
Sun, 0171° / 61°0.46Rain
71 °Rain

Marion, Sunday, 1 November

Rain. High 71°, low 61°.

Pressure29.97 inHg
Wind19 mph S
Humidity92%
Visibility—
Dew point59°
Mon, 0264° / 55°0.46Rain
64 °Rain

Marion, Monday, 2 November

Rain. High 64°, low 55°.

Pressure29.77 inHg
Wind11.6 mph NW
Humidity95%
Visibility—
Dew point58°
Tue, 0356° / 53°0.77Rain
56 °Rain

Marion, Tuesday, 3 November

Rain. High 56°, low 53°.

Pressure29.59 inHg
Wind17.1 mph NW
Humidity95%
Visibility—
Dew point54°
Wed, 0453° / 48°0.15Light rain
53 °Light rain

Marion, Wednesday, 4 November

Light rain. High 53°, low 48°.

Pressure29.47 inHg
Wind15 mph NW
Humidity89%
Visibility—
Dew point49°
Thu, 0560° / 48°0.03Light rain
60 °Light rain

Marion, Thursday, 5 November

Light rain. High 60°, low 48°.

Pressure29.71 inHg
Wind14.7 mph SW
Humidity52%
Visibility—
Dew point40°

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 Marion, 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 Marion, 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.