EN
English Español

As of 23:14 CDT

Weather in Altamont, IL

72°Current weather

Altamont, Thursday, 15 October, 23:14

Overcast. Feels like 73°. High 76°, low 66°.

Pressure29.88 inHg
Wind10.4 mph SW
Humidity85%
Visibility6.2 mi
Dew point67°
Fri, 1672° / 53°0.02Light rain
72 °Light rain

Altamont, Friday, 16 October

Light rain. High 72°, low 53°.

Pressure30.15 inHg
Wind16.7 mph NW
Humidity47%
Visibility6.2 mi
Dew point37°
Sat, 1757° / 42°0Clear
57 °Clear

Altamont, Saturday, 17 October

Clear. High 57°, low 42°.

Pressure30.56 inHg
Wind4.5 mph NE
Humidity52%
Visibility6.2 mi
Dew point37°
Sun, 1862° / 41°0Clear
62 °Clear

Altamont, Sunday, 18 October

Clear. High 62°, low 41°.

Pressure30.53 inHg
Wind7.6 mph S
Humidity41%
Visibility6.2 mi
Dew point34°
Mon, 1967° / 42°0Clear
67 °Clear

Altamont, Monday, 19 October

Clear. High 67°, low 42°.

Pressure30.39 inHg
Wind4.2 mph S
Humidity47%
Visibility6.2 mi
Dew point42°
Tue, 2069° / 44°0Clear
69 °Clear

Altamont, Tuesday, 20 October

Clear. High 69°, low 44°.

Pressure30.33 inHg
Wind4.5 mph E
Humidity37%
Visibility—
Dew point38°
Wed, 2172° / 51°0Partly cloudy
72 °Partly cloudy

Altamont, Wednesday, 21 October

Partly cloudy. High 72°, low 51°.

Pressure30.30 inHg
Wind4.8 mph SE
Humidity37%
Visibility—
Dew point40°
Thu, 2276° / 52°0Mostly clear
76 °Mostly clear

Altamont, Thursday, 22 October

Mostly clear. High 76°, low 52°.

Pressure30.24 inHg
Wind5.9 mph SE
Humidity25%
Visibility—
Dew point33°
Fri, 2377° / 53°0Mostly clear
77 °Mostly clear

Altamont, Friday, 23 October

Mostly clear. High 77°, low 53°.

Pressure30.18 inHg
Wind8.9 mph SE
Humidity26%
Visibility—
Dew point35°
Sat, 2474° / 56°0Overcast
74 °Overcast

Altamont, Saturday, 24 October

Overcast. High 74°, low 56°.

Pressure30.21 inHg
Wind8.3 mph SE
Humidity31%
Visibility—
Dew point38°
Sun, 2575° / 54°0Overcast
75 °Overcast

Altamont, Sunday, 25 October

Overcast. High 75°, low 54°.

Pressure30.21 inHg
Wind6.9 mph E
Humidity30%
Visibility—
Dew point38°
Mon, 2677° / 55°0Overcast
77 °Overcast

Altamont, Monday, 26 October

Overcast. High 77°, low 55°.

Pressure30.03 inHg
Wind11.9 mph S
Humidity29%
Visibility—
Dew point35°
Tue, 2768° / 50°0Clear
68 °Clear

Altamont, Tuesday, 27 October

Clear. High 68°, low 50°.

Pressure30.06 inHg
Wind10 mph SW
Humidity34%
Visibility—
Dew point35°
Wed, 2866° / 52°0.74Rain
66 °Rain

Altamont, Wednesday, 28 October

Rain. High 66°, low 52°.

Pressure29.68 inHg
Wind20.3 mph S
Humidity94%
Visibility—
Dew point58°
Thu, 2961° / 47°0Overcast
61 °Overcast

Altamont, Thursday, 29 October

Overcast. High 61°, low 47°.

Pressure29.94 inHg
Wind19.6 mph W
Humidity56%
Visibility—
Dew point42°
Fri, 3067° / 46°0Partly cloudy
67 °Partly cloudy

Altamont, Friday, 30 October

Partly cloudy. High 67°, low 46°.

Pressure30.06 inHg
Wind8.3 mph NW
Humidity42%
Visibility—
Dew point39°

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 Altamont, 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 Altamont, 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.