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As of 16:38 CDT

Weather in Marion, IL

73°Current weather

Marion, Tuesday, 20 October, 16:38

Clear. Feels like 72°. High 74°, low 45°.

Pressure30.27 inHg
Wind4.6 mph NW
Humidity43%
Visibility6.2 mi
Dew point50°
Wed, 2174° / 44°0Clear
74 °Clear

Marion, Wednesday, 21 October

Clear. High 74°, low 44°.

Pressure30.27 inHg
Wind1.6 mph N
Humidity47%
Visibility6.2 mi
Dew point48°
Thu, 2274° / 47°0Clear
74 °Clear

Marion, Thursday, 22 October

Clear. High 74°, low 47°.

Pressure30.27 inHg
Wind3.3 mph NE
Humidity45%
Visibility6.2 mi
Dew point48°
Fri, 2371° / 52°0Clear
71 °Clear

Marion, Friday, 23 October

Clear. High 71°, low 52°.

Pressure30.30 inHg
Wind5.9 mph E
Humidity47%
Visibility6.2 mi
Dew point49°
Sat, 2474° / 51°0Partly cloudy
74 °Partly cloudy

Marion, Saturday, 24 October

Partly cloudy. High 74°, low 51°.

Pressure30.36 inHg
Wind3.5 mph SE
Humidity52%
Visibility6.2 mi
Dew point50°
Sun, 2574° / 55°0Overcast
74 °Overcast

Marion, Sunday, 25 October

Overcast. High 74°, low 55°.

Pressure30.39 inHg
Wind6.4 mph SW
Humidity39%
Visibility—
Dew point45°
Mon, 2675° / 55°0Overcast
75 °Overcast

Marion, Monday, 26 October

Overcast. High 75°, low 55°.

Pressure30.21 inHg
Wind8.8 mph SW
Humidity36%
Visibility—
Dew point44°
Tue, 2769° / 56°0Overcast
69 °Overcast

Marion, Tuesday, 27 October

Overcast. High 69°, low 56°.

Pressure30.18 inHg
Wind10.6 mph NW
Humidity45%
Visibility—
Dew point46°
Wed, 2856° / 40°0.03Light rain
56 °Light rain

Marion, Wednesday, 28 October

Light rain. High 56°, low 40°.

Pressure30.24 inHg
Wind16.8 mph NW
Humidity48%
Visibility—
Dew point33°
Thu, 2959° / 34°0Clear
59 °Clear

Marion, Thursday, 29 October

Clear. High 59°, low 34°.

Pressure30.30 inHg
Wind10.5 mph NW
Humidity30%
Visibility—
Dew point23°
Fri, 3059° / 34°0Clear
59 °Clear

Marion, Friday, 30 October

Clear. High 59°, low 34°.

Pressure30.24 inHg
Wind7.6 mph E
Humidity23%
Visibility—
Dew point16°
Sat, 3162° / 40°0Overcast
62 °Overcast

Marion, Saturday, 31 October

Overcast. High 62°, low 40°.

Pressure30.00 inHg
Wind12.5 mph S
Humidity43%
Visibility—
Dew point35°
Sun, 0166° / 57°0.16Light rain
66 °Light rain

Marion, Sunday, 1 November

Light rain. High 66°, low 57°.

Pressure29.94 inHg
Wind17.2 mph S
Humidity83%
Visibility—
Dew point59°
Mon, 0275° / 53°0.18Light rain
75 °Light rain

Marion, Monday, 2 November

Light rain. High 75°, low 53°.

Pressure30.06 inHg
Wind16.9 mph N
Humidity59%
Visibility—
Dew point59°
Tue, 0359° / 39°0Clear
59 °Clear

Marion, Tuesday, 3 November

Clear. High 59°, low 39°.

Pressure30.47 inHg
Wind9.6 mph NE
Humidity20%
Visibility—
Dew point15°
Wed, 0450° / 43°0.01Light rain
50 °Light rain

Marion, Wednesday, 4 November

Light rain. High 50°, low 43°.

Pressure30.36 inHg
Wind5.8 mph N
Humidity41%
Visibility—
Dew point27°

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.