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As of 01:43 CDT

Weather in Marion, IL

67°Current weather

Marion, Tuesday, 13 October, 01:43

Clear. Feels like 67°. High 92°, low 65°.

Pressure29.91 inHg
Wind6.9 mph S
Humidity72%
Visibility6.2 mi
Dew point58°
Wed, 1482° / 68°0.06Light rain
82 °Light rain

Marion, Wednesday, 14 October

Light rain. High 82°, low 68°.

Pressure30.03 inHg
Wind6 mph W
Humidity78%
Visibility6.2 mi
Dew point71°
Thu, 1585° / 70°0.39Heavy rain
85 °Heavy rain

Marion, Thursday, 15 October

Heavy rain. High 85°, low 70°.

Pressure30.03 inHg
Wind8.5 mph SW
Humidity78%
Visibility6.2 mi
Dew point73°
Fri, 1673° / 54°0.13Light rain
73 °Light rain

Marion, Friday, 16 October

Light rain. High 73°, low 54°.

Pressure30.27 inHg
Wind18.5 mph NW
Humidity45%
Visibility6.2 mi
Dew point37°
Sat, 1762° / 46°0Clear
62 °Clear

Marion, Saturday, 17 October

Clear. High 62°, low 46°.

Pressure30.50 inHg
Wind10.4 mph N
Humidity50%
Visibility—
Dew point39°
Sun, 1869° / 45°0Clear
69 °Clear

Marion, Sunday, 18 October

Clear. High 69°, low 45°.

Pressure30.33 inHg
Wind8.1 mph S
Humidity38%
Visibility—
Dew point37°
Mon, 1974° / 52°0.01Light rain
74 °Light rain

Marion, Monday, 19 October

Light rain. High 74°, low 52°.

Pressure30.24 inHg
Wind10.7 mph S
Humidity45%
Visibility—
Dew point48°
Tue, 2074° / 61°0.04Light rain
74 °Light rain

Marion, Tuesday, 20 October

Light rain. High 74°, low 61°.

Pressure30.15 inHg
Wind10.5 mph SE
Humidity62%
Visibility—
Dew point59°
Wed, 2170° / 58°0Overcast
70 °Overcast

Marion, Wednesday, 21 October

Overcast. High 70°, low 58°.

Pressure30.18 inHg
Wind9.5 mph SE
Humidity70%
Visibility—
Dew point56°
Thu, 2280° / 61°0Overcast
80 °Overcast

Marion, Thursday, 22 October

Overcast. High 80°, low 61°.

Pressure30.09 inHg
Wind19 mph S
Humidity41%
Visibility—
Dew point52°
Fri, 2371° / 60°0.31Rain
71 °Rain

Marion, Friday, 23 October

Rain. High 71°, low 60°.

Pressure30.09 inHg
Wind21.3 mph S
Humidity91%
Visibility—
Dew point65°
Sat, 2466° / 49°0Light rain
66 °Light rain

Marion, Saturday, 24 October

Light rain. High 66°, low 49°.

Pressure30.30 inHg
Wind10 mph NE
Humidity38%
Visibility—
Dew point37°
Sun, 2564° / 47°0.06Light rain
64 °Light rain

Marion, Sunday, 25 October

Light rain. High 64°, low 47°.

Pressure30.27 inHg
Wind11.9 mph N
Humidity37%
Visibility—
Dew point34°
Mon, 2658° / 41°0.01Light rain
58 °Light rain

Marion, Monday, 26 October

Light rain. High 58°, low 41°.

Pressure30.12 inHg
Wind5.6 mph W
Humidity44%
Visibility—
Dew point34°
Tue, 2769° / 43°0Clear
69 °Clear

Marion, Tuesday, 27 October

Clear. High 69°, low 43°.

Pressure29.77 inHg
Wind14.5 mph W
Humidity37%
Visibility—
Dew point37°
Wed, 2862° / 49°0Clear
62 °Clear

Marion, Wednesday, 28 October

Clear. High 62°, low 49°.

Pressure29.88 inHg
Wind13.7 mph NW
Humidity33%
Visibility—
Dew point31°

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.