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As of 19:58 CDT

Weather in St. Elmo, IL

72°Current weather

St. Elmo, Wednesday, 14 October, 19:58

Overcast. Feels like 73°. High 76°, low 70°.

Pressure30.00 inHg
Wind0.5 mph E
Humidity90%
Visibility6.2 mi
Dew point69°
Thu, 1574° / 68°1.58Heavy rain
74 °Heavy rain

St. Elmo, Thursday, 15 October

Heavy rain. High 74°, low 68°.

Pressure30.00 inHg
Wind7 mph S
Humidity85%
Visibility1.6 mi
Dew point70°
Fri, 1668° / 51°0.22Rain
68 °Rain

St. Elmo, Friday, 16 October

Rain. High 68°, low 51°.

Pressure30.15 inHg
Wind18.1 mph NW
Humidity47%
Visibility6.2 mi
Dew point37°
Sat, 1758° / 43°0Clear
58 °Clear

St. Elmo, Saturday, 17 October

Clear. High 58°, low 43°.

Pressure30.53 inHg
Wind6.4 mph N
Humidity54%
Visibility6.2 mi
Dew point39°
Sun, 1861° / 40°0Clear
61 °Clear

St. Elmo, Sunday, 18 October

Clear. High 61°, low 40°.

Pressure30.50 inHg
Wind5.1 mph SE
Humidity45%
Visibility6.2 mi
Dew point36°
Mon, 1965° / 40°0Overcast
65 °Overcast

St. Elmo, Monday, 19 October

Overcast. High 65°, low 40°.

Pressure30.42 inHg
Wind3.6 mph E
Humidity37%
Visibility—
Dew point34°
Tue, 2072° / 44°0Partly cloudy
72 °Partly cloudy

St. Elmo, Tuesday, 20 October

Partly cloudy. High 72°, low 44°.

Pressure30.30 inHg
Wind6.4 mph SE
Humidity46%
Visibility—
Dew point45°
Wed, 2176° / 59°0Clear
76 °Clear

St. Elmo, Wednesday, 21 October

Clear. High 76°, low 59°.

Pressure30.24 inHg
Wind10.1 mph S
Humidity44%
Visibility—
Dew point50°
Thu, 2271° / 62°0.07Light rain
71 °Light rain

St. Elmo, Thursday, 22 October

Light rain. High 71°, low 62°.

Pressure30.06 inHg
Wind15.3 mph SW
Humidity56%
Visibility—
Dew point54°
Fri, 2380° / 62°0.02Light rain
80 °Light rain

St. Elmo, Friday, 23 October

Light rain. High 80°, low 62°.

Pressure30.06 inHg
Wind7.6 mph SE
Humidity61%
Visibility—
Dew point61°
Sat, 2483° / 61°0Overcast
83 °Overcast

St. Elmo, Saturday, 24 October

Overcast. High 83°, low 61°.

Pressure30.00 inHg
Wind19.1 mph SW
Humidity36%
Visibility—
Dew point51°
Sun, 2561° / 48°0Overcast
61 °Overcast

St. Elmo, Sunday, 25 October

Overcast. High 61°, low 48°.

Pressure30.36 inHg
Wind13 mph NW
Humidity29%
Visibility—
Dew point27°
Mon, 2660° / 42°0Clear
60 °Clear

St. Elmo, Monday, 26 October

Clear. High 60°, low 42°.

Pressure30.39 inHg
Wind6.9 mph N
Humidity26%
Visibility—
Dew point22°
Tue, 2762° / 41°0Overcast
62 °Overcast

St. Elmo, Tuesday, 27 October

Overcast. High 62°, low 41°.

Pressure30.27 inHg
Wind6.2 mph S
Humidity26%
Visibility—
Dew point23°
Wed, 2857° / 49°0.21Rain
57 °Rain

St. Elmo, Wednesday, 28 October

Rain. High 57°, low 49°.

Pressure30.09 inHg
Wind5.7 mph S
Humidity31%
Visibility—
Dew point26°
Thu, 2961° / 47°0.05Light rain
61 °Light rain

St. Elmo, Thursday, 29 October

Light rain. High 61°, low 47°.

Pressure30.09 inHg
Wind7.7 mph W
Humidity63%
Visibility—
Dew point45°

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 St. Elmo, 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 St. Elmo, 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.