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As of 13:58 CDT

Weather in Altona, IL

70°Current weather

Altona, Monday, 19 October, 13:58

Overcast. Feels like 68°. High 70°, low 40°.

Pressure30.33 inHg
Wind4.4 mph S
Humidity42%
Visibility6.2 mi
Dew point45°
Tue, 2068° / 42°0Clear
68 °Clear

Altona, Tuesday, 20 October

Clear. High 68°, low 42°.

Pressure30.36 inHg
Wind5.5 mph SE
Humidity44%
Visibility6.2 mi
Dew point43°
Wed, 2170° / 46°0Clear
70 °Clear

Altona, Wednesday, 21 October

Clear. High 70°, low 46°.

Pressure30.27 inHg
Wind3.5 mph SW
Humidity51%
Visibility6.2 mi
Dew point48°
Thu, 2270° / 50°0Clear
70 °Clear

Altona, Thursday, 22 October

Clear. High 70°, low 50°.

Pressure30.33 inHg
Wind2.8 mph E
Humidity56%
Visibility6.2 mi
Dew point52°
Fri, 2366° / 49°0Clear
66 °Clear

Altona, Friday, 23 October

Clear. High 66°, low 49°.

Pressure30.33 inHg
Wind7.7 mph SE
Humidity60%
Visibility6.2 mi
Dew point49°
Sat, 2467° / 49°0Overcast
67 °Overcast

Altona, Saturday, 24 October

Overcast. High 67°, low 49°.

Pressure30.36 inHg
Wind10.3 mph S
Humidity46%
Visibility—
Dew point42°
Sun, 2567° / 56°0Overcast
67 °Overcast

Altona, Sunday, 25 October

Overcast. High 67°, low 56°.

Pressure30.30 inHg
Wind9.5 mph NW
Humidity67%
Visibility—
Dew point55°
Mon, 2659° / 53°0.08Light rain
59 °Light rain

Altona, Monday, 26 October

Light rain. High 59°, low 53°.

Pressure30.24 inHg
Wind8.3 mph SE
Humidity79%
Visibility—
Dew point47°
Tue, 2760° / 41°0.17Light rain
60 °Light rain

Altona, Tuesday, 27 October

Light rain. High 60°, low 41°.

Pressure29.97 inHg
Wind17.7 mph N
Humidity93%
Visibility—
Dew point53°
Wed, 2842° / 30°0Clear
42 °Clear

Altona, Wednesday, 28 October

Clear. High 42°, low 30°.

Pressure30.36 inHg
Wind15.6 mph NW
Humidity35%
Visibility—
Dew point13°
Thu, 2951° / 29°0Clear
51 °Clear

Altona, Thursday, 29 October

Clear. High 51°, low 29°.

Pressure30.24 inHg
Wind11.8 mph SW
Humidity35%
Visibility—
Dew point20°
Fri, 3057° / 38°0Overcast
57 °Overcast

Altona, Friday, 30 October

Overcast. High 57°, low 38°.

Pressure29.94 inHg
Wind13.2 mph SW
Humidity33%
Visibility—
Dew point24°
Sat, 3153° / 42°0Overcast
53 °Overcast

Altona, Saturday, 31 October

Overcast. High 53°, low 42°.

Pressure30.06 inHg
Wind10.4 mph SE
Humidity67%
Visibility—
Dew point39°
Sun, 0154° / 40°0.25Rain
54 °Rain

Altona, Sunday, 1 November

Rain. High 54°, low 40°.

Pressure29.94 inHg
Wind18 mph NW
Humidity78%
Visibility—
Dew point46°
Mon, 0247° / 35°0Clear
47 °Clear

Altona, Monday, 2 November

Clear. High 47°, low 35°.

Pressure30.21 inHg
Wind16 mph NW
Humidity52%
Visibility—
Dew point27°
Tue, 0347° / 34°0Overcast
47 °Overcast

Altona, Tuesday, 3 November

Overcast. High 47°, low 34°.

Pressure30.03 inHg
Wind7 mph NE
Humidity61%
Visibility—
Dew point31°

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 Altona, 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 Altona, 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.