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As of 23:12 CDT

Weather in Altorf, IL

67°Current weather

Altorf, Saturday, 8 August, 23:12

Clear. Feels like 68°. High 84°, low 67°.

Pressure30.03 inHg
Wind0.9 mph N
Humidity94%
Visibility6.2 mi
Dew point65°
Sun, 0989° / 64°0.07Light rain
89 °Light rain

Altorf, Sunday, 9 August

Light rain. High 89°, low 64°.

Pressure29.97 inHg
Wind14.8 mph S
Humidity78%
Visibility6.2 mi
Dew point75°
Mon, 1087° / 72°0.14Rain
87 °Rain

Altorf, Monday, 10 August

Rain. High 87°, low 72°.

Pressure29.91 inHg
Wind12.4 mph SW
Humidity73%
Visibility6.2 mi
Dew point74°
Tue, 1182° / 72°0.12Light rain
82 °Light rain

Altorf, Tuesday, 11 August

Light rain. High 82°, low 72°.

Pressure29.83 inHg
Wind12.5 mph W
Humidity83%
Visibility6.2 mi
Dew point70°
Wed, 1282° / 68°0Light rain
82 °Light rain

Altorf, Wednesday, 12 August

Light rain. High 82°, low 68°.

Pressure29.85 inHg
Wind5.1 mph N
Humidity69%
Visibility6.2 mi
Dew point70°
Thu, 1374° / 62°0.04Light rain
74 °Light rain

Altorf, Thursday, 13 August

Light rain. High 74°, low 62°.

Pressure30.00 inHg
Wind9.6 mph SE
Humidity76%
Visibility—
Dew point65°
Fri, 1477° / 60°0Mostly clear
77 °Mostly clear

Altorf, Friday, 14 August

Mostly clear. High 77°, low 60°.

Pressure30.09 inHg
Wind8.1 mph E
Humidity65%
Visibility—
Dew point61°
Sat, 1565° / 57°0.02Light rain
65 °Light rain

Altorf, Saturday, 15 August

Light rain. High 65°, low 57°.

Pressure30.30 inHg
Wind7.5 mph E
Humidity85%
Visibility—
Dew point57°
Sun, 1668° / 62°0.01Light rain
68 °Light rain

Altorf, Sunday, 16 August

Light rain. High 68°, low 62°.

Pressure30.15 inHg
Wind6.1 mph E
Humidity86%
Visibility—
Dew point60°
Mon, 1777° / 61°0.02Light rain
77 °Light rain

Altorf, Monday, 17 August

Light rain. High 77°, low 61°.

Pressure30.06 inHg
Wind4.6 mph NW
Humidity72%
Visibility—
Dew point64°
Tue, 1881° / 65°0Overcast
81 °Overcast

Altorf, Tuesday, 18 August

Overcast. High 81°, low 65°.

Pressure30.00 inHg
Wind8.7 mph SW
Humidity72%
Visibility—
Dew point67°
Wed, 1973° / 59°0.08Light rain
73 °Light rain

Altorf, Wednesday, 19 August

Light rain. High 73°, low 59°.

Pressure29.91 inHg
Wind12.3 mph N
Humidity70%
Visibility—
Dew point62°
Thu, 2070° / 53°0.03Light rain
70 °Light rain

Altorf, Thursday, 20 August

Light rain. High 70°, low 53°.

Pressure30.06 inHg
Wind10.4 mph N
Humidity64%
Visibility—
Dew point55°
Fri, 2174° / 53°0.01Light rain
74 °Light rain

Altorf, Friday, 21 August

Light rain. High 74°, low 53°.

Pressure30.09 inHg
Wind7.2 mph E
Humidity62%
Visibility—
Dew point56°
Sat, 2274° / 55°0.02Light rain
74 °Light rain

Altorf, Saturday, 22 August

Light rain. High 74°, low 55°.

Pressure29.88 inHg
Wind13.5 mph S
Humidity78%
Visibility—
Dew point62°
Sun, 2381° / 65°0Mostly clear
81 °Mostly clear

Altorf, Sunday, 23 August

Mostly clear. High 81°, low 65°.

Pressure29.91 inHg
Wind14 mph W
Humidity63%
Visibility—
Dew point65°

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 Altorf, 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 Altorf, 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.