EN
English Español

As of 16:34 CDT

Weather in St. Elmo, IL

65°Current weather

St. Elmo, Sunday, 18 October, 16:34

Clear. Feels like 63°. High 65°, low 37°.

Pressure30.39 inHg
Wind5.3 mph SE
Humidity42%
Visibility6.2 mi
Dew point41°
Mon, 1968° / 40°0Clear
68 °Clear

St. Elmo, Monday, 19 October

Clear. High 68°, low 40°.

Pressure30.39 inHg
Wind2.1 mph S
Humidity52%
Visibility6.2 mi
Dew point45°
Tue, 2068° / 46°0Clear
68 °Clear

St. Elmo, Tuesday, 20 October

Clear. High 68°, low 46°.

Pressure30.36 inHg
Wind1.3 mph E
Humidity51%
Visibility6.2 mi
Dew point47°
Wed, 2169° / 44°0Clear
69 °Clear

St. Elmo, Wednesday, 21 October

Clear. High 69°, low 44°.

Pressure30.30 inHg
Wind0.4 mph SW
Humidity48%
Visibility6.2 mi
Dew point47°
Thu, 2270° / 47°0Clear
70 °Clear

St. Elmo, Thursday, 22 October

Clear. High 70°, low 47°.

Pressure30.27 inHg
Wind3 mph NE
Humidity54%
Visibility6.2 mi
Dew point49°
Fri, 2368° / 48°0Clear
68 °Clear

St. Elmo, Friday, 23 October

Clear. High 68°, low 48°.

Pressure30.30 inHg
Wind7.4 mph E
Humidity53%
Visibility—
Dew point47°
Sat, 2475° / 50°0Overcast
75 °Overcast

St. Elmo, Saturday, 24 October

Overcast. High 75°, low 50°.

Pressure30.36 inHg
Wind9.2 mph S
Humidity36%
Visibility—
Dew point41°
Sun, 2578° / 58°0Overcast
78 °Overcast

St. Elmo, Sunday, 25 October

Overcast. High 78°, low 58°.

Pressure30.33 inHg
Wind10 mph SW
Humidity28%
Visibility—
Dew point39°
Mon, 2674° / 58°0Overcast
74 °Overcast

St. Elmo, Monday, 26 October

Overcast. High 74°, low 58°.

Pressure30.30 inHg
Wind5.9 mph SW
Humidity35%
Visibility—
Dew point42°
Tue, 2774° / 56°0Overcast
74 °Overcast

St. Elmo, Tuesday, 27 October

Overcast. High 74°, low 56°.

Pressure30.27 inHg
Wind5.8 mph SE
Humidity33%
Visibility—
Dew point40°
Wed, 2874° / 58°0Overcast
74 °Overcast

St. Elmo, Wednesday, 28 October

Overcast. High 74°, low 58°.

Pressure30.18 inHg
Wind6.8 mph SE
Humidity38%
Visibility—
Dew point43°
Thu, 2977° / 58°0Overcast
77 °Overcast

St. Elmo, Thursday, 29 October

Overcast. High 77°, low 58°.

Pressure30.06 inHg
Wind15.9 mph SW
Humidity34%
Visibility—
Dew point44°
Fri, 3071° / 60°0.89Rain
71 °Rain

St. Elmo, Friday, 30 October

Rain. High 71°, low 60°.

Pressure29.94 inHg
Wind15.3 mph S
Humidity84%
Visibility—
Dew point61°
Sat, 3169° / 54°0.01Light rain
69 °Light rain

St. Elmo, Saturday, 31 October

Light rain. High 69°, low 54°.

Pressure30.09 inHg
Wind7.3 mph N
Humidity47%
Visibility—
Dew point46°
Sun, 0175° / 59°1.74Heavy rain
75 °Heavy rain

St. Elmo, Sunday, 1 November

Heavy rain. High 75°, low 59°.

Pressure29.88 inHg
Wind14.6 mph SE
Humidity96%
Visibility—
Dew point65°
Mon, 0267° / 48°0.51Rain
67 °Rain

St. Elmo, Monday, 2 November

Rain. High 67°, low 48°.

Pressure29.97 inHg
Wind18 mph N
Humidity87%
Visibility—
Dew point56°

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.