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As of 13:23 CDT

Weather in Altamont, IL

86°Current weather

Altamont, Saturday, 8 August, 13:23

Clear. Feels like 95°. High 88°, low 71°.

Pressure30.06 inHg
Wind6.8 mph W
Humidity69%
Visibility6.2 mi
Dew point74°
Sun, 0992° / 72°0Partly cloudy
92 °Partly cloudy

Altamont, Sunday, 9 August

Partly cloudy. High 92°, low 72°.

Pressure30.00 inHg
Wind12.4 mph S
Humidity65%
Visibility6.2 mi
Dew point72°
Mon, 1092° / 74°0Overcast
92 °Overcast

Altamont, Monday, 10 August

Overcast. High 92°, low 74°.

Pressure29.97 inHg
Wind13.8 mph SW
Humidity63%
Visibility6.2 mi
Dew point74°
Tue, 1194° / 75°0.03Light rain
94 °Light rain

Altamont, Tuesday, 11 August

Light rain. High 94°, low 75°.

Pressure29.88 inHg
Wind15.1 mph SW
Humidity59%
Visibility6.2 mi
Dew point73°
Wed, 1282° / 69°0.69Rain
82 °Rain

Altamont, Wednesday, 12 August

Rain. High 82°, low 69°.

Pressure29.85 inHg
Wind11.9 mph N
Humidity78%
Visibility6.2 mi
Dew point76°
Thu, 1372° / 66°0.3Rain
72 °Rain

Altamont, Thursday, 13 August

Rain. High 72°, low 66°.

Pressure29.83 inHg
Wind10.8 mph NE
Humidity97%
Visibility—
Dew point71°
Fri, 1474° / 57°0Mostly clear
74 °Mostly clear

Altamont, Friday, 14 August

Mostly clear. High 74°, low 57°.

Pressure30.18 inHg
Wind6.6 mph NE
Humidity58%
Visibility—
Dew point55°
Sat, 1577° / 57°0Overcast
77 °Overcast

Altamont, Saturday, 15 August

Overcast. High 77°, low 57°.

Pressure30.21 inHg
Wind8.1 mph E
Humidity60%
Visibility—
Dew point58°
Sun, 1669° / 64°0.28Rain
69 °Rain

Altamont, Sunday, 16 August

Rain. High 69°, low 64°.

Pressure30.12 inHg
Wind13 mph SE
Humidity99%
Visibility—
Dew point65°
Mon, 1780° / 69°0.37Rain
80 °Rain

Altamont, Monday, 17 August

Rain. High 80°, low 69°.

Pressure29.94 inHg
Wind10.9 mph SE
Humidity83%
Visibility—
Dew point72°
Tue, 1885° / 68°0.01Light rain
85 °Light rain

Altamont, Tuesday, 18 August

Light rain. High 85°, low 68°.

Pressure29.94 inHg
Wind8 mph W
Humidity66%
Visibility—
Dew point69°
Wed, 1986° / 65°0.2Light rain
86 °Light rain

Altamont, Wednesday, 19 August

Light rain. High 86°, low 65°.

Pressure29.91 inHg
Wind14.7 mph N
Humidity67%
Visibility—
Dew point72°
Thu, 2070° / 56°0Mostly clear
70 °Mostly clear

Altamont, Thursday, 20 August

Mostly clear. High 70°, low 56°.

Pressure30.18 inHg
Wind14.2 mph N
Humidity58%
Visibility—
Dew point52°
Fri, 2171° / 50°0Clear
71 °Clear

Altamont, Friday, 21 August

Clear. High 71°, low 50°.

Pressure30.24 inHg
Wind7.8 mph NE
Humidity53%
Visibility—
Dew point49°
Sat, 2273° / 52°0Clear
73 °Clear

Altamont, Saturday, 22 August

Clear. High 73°, low 52°.

Pressure30.18 inHg
Wind3.7 mph E
Humidity52%
Visibility—
Dew point51°
Sun, 2376° / 54°0Clear
76 °Clear

Altamont, Sunday, 23 August

Clear. High 76°, low 54°.

Pressure30.12 inHg
Wind6.6 mph E
Humidity53%
Visibility—
Dew point54°

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.