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As of 18:33 CDT

Weather in Altona, IL

63°Current weather

Altona, Tuesday, 20 October, 18:33

Clear. Feels like 62°. High 71°, low 42°.

Pressure30.30 inHg
Wind4.8 mph SE
Humidity61%
Visibility6.2 mi
Dew point49°
Wed, 2174° / 45°0Clear
74 °Clear

Altona, Wednesday, 21 October

Clear. High 74°, low 45°.

Pressure30.27 inHg
Wind5.8 mph SW
Humidity49%
Visibility6.2 mi
Dew point48°
Thu, 2273° / 46°0Clear
73 °Clear

Altona, Thursday, 22 October

Clear. High 73°, low 46°.

Pressure30.27 inHg
Wind2.5 mph E
Humidity55%
Visibility6.2 mi
Dew point53°
Fri, 2371° / 53°0Partly cloudy
71 °Partly cloudy

Altona, Friday, 23 October

Partly cloudy. High 71°, low 53°.

Pressure30.30 inHg
Wind7.9 mph SE
Humidity58%
Visibility6.2 mi
Dew point53°
Sat, 2469° / 52°0Overcast
69 °Overcast

Altona, Saturday, 24 October

Overcast. High 69°, low 52°.

Pressure30.33 inHg
Wind10.2 mph S
Humidity57%
Visibility6.2 mi
Dew point50°
Sun, 2574° / 54°0Overcast
74 °Overcast

Altona, Sunday, 25 October

Overcast. High 74°, low 54°.

Pressure30.33 inHg
Wind7.5 mph S
Humidity50%
Visibility—
Dew point50°
Mon, 2671° / 52°0Overcast
71 °Overcast

Altona, Monday, 26 October

Overcast. High 71°, low 52°.

Pressure30.15 inHg
Wind12.7 mph N
Humidity49%
Visibility—
Dew point49°
Tue, 2751° / 44°0.16Light rain
51 °Light rain

Altona, Tuesday, 27 October

Light rain. High 51°, low 44°.

Pressure30.33 inHg
Wind13.5 mph N
Humidity89%
Visibility—
Dew point42°
Wed, 2843° / 38°0.03Light rain
43 °Light rain

Altona, Wednesday, 28 October

Light rain. High 43°, low 38°.

Pressure30.21 inHg
Wind17.6 mph NW
Humidity94%
Visibility—
Dew point37°
Thu, 2947° / 34°0Clear
47 °Clear

Altona, Thursday, 29 October

Clear. High 47°, low 34°.

Pressure30.30 inHg
Wind11.8 mph NW
Humidity50%
Visibility—
Dew point27°
Fri, 3049° / 31°0Clear
49 °Clear

Altona, Friday, 30 October

Clear. High 49°, low 31°.

Pressure30.24 inHg
Wind11.2 mph S
Humidity38%
Visibility—
Dew point20°
Sat, 3153° / 41°0.02Light rain
53 °Light rain

Altona, Saturday, 31 October

Light rain. High 53°, low 41°.

Pressure29.91 inHg
Wind17.2 mph S
Humidity42%
Visibility—
Dew point29°
Sun, 0167° / 48°0.17Light rain
67 °Light rain

Altona, Sunday, 1 November

Light rain. High 67°, low 48°.

Pressure29.74 inHg
Wind18.9 mph S
Humidity71%
Visibility—
Dew point53°
Mon, 0263° / 41°0.11Light rain
63 °Light rain

Altona, Monday, 2 November

Light rain. High 63°, low 41°.

Pressure30.18 inHg
Wind17.9 mph NW
Humidity41%
Visibility—
Dew point30°
Tue, 0352° / 36°0Clear
52 °Clear

Altona, Tuesday, 3 November

Clear. High 52°, low 36°.

Pressure30.50 inHg
Wind8.1 mph S
Humidity33%
Visibility—
Dew point21°
Wed, 0451° / 39°0Overcast
51 °Overcast

Altona, Wednesday, 4 November

Overcast. High 51°, low 39°.

Pressure30.33 inHg
Wind10.3 mph SW
Humidity41%
Visibility—
Dew point26°

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.