As of 07:53 CDT

Weather in Altmar, IL

56°

Altmar, Saturday, 10 October, 07:53

Clear. Feels like 55°. High 80°, low 56°.

Pressure30.09 inHg

Wind9.2 mph S

Humidity87%

Visibility6.2 mi

Dew point52°

See detailed hourly forecast

Sun, 1177° / 55°

77 °

Altmar, Sunday, 11 October

Clear. High 77°, low 55°.

Pressure29.97 inHg

Wind3.6 mph S

Humidity57%

Visibility6.2 mi

Dew point55°

Mon, 1284° / 61°

84 °

Altmar, Monday, 12 October

Partly cloudy. High 84°, low 61°.

Pressure29.85 inHg

Wind11.1 mph SW

Humidity52%

Visibility6.2 mi

Dew point62°

Tue, 1382° / 69°

82 °

Altmar, Tuesday, 13 October

Clear. High 82°, low 69°.

Pressure29.83 inHg

Wind9.9 mph W

Humidity61%

Visibility6.2 mi

Dew point66°

Wed, 1471° / 59°

0.63

71 °

Altmar, Wednesday, 14 October

Rain. High 71°, low 59°.

Pressure30.09 inHg

Wind11.9 mph NE

Humidity61%

Visibility—

Dew point54°

Thu, 1562° / 53°

0.06

62 °

Altmar, Thursday, 15 October

Light rain. High 62°, low 53°.

Pressure30.33 inHg

Wind17.9 mph NW

Humidity60%

Visibility—

Dew point44°

Fri, 1663° / 50°

63 °

Altmar, Friday, 16 October

Overcast. High 63°, low 50°.

Pressure29.91 inHg

Wind19.1 mph W

Humidity41%

Visibility—

Dew point38°

Sat, 1747° / 40°

0.06

47 °

Altmar, Saturday, 17 October

Light rain. High 47°, low 40°.

Pressure30.15 inHg

Wind15.8 mph N

Humidity94%

Visibility—

Dew point39°

Sun, 1848° / 32°

48 °

Altmar, Sunday, 18 October

Clear. High 48°, low 32°.

Pressure30.47 inHg

Wind15 mph N

Humidity47%

Visibility—

Dew point25°

Mon, 1952° / 35°

52 °

Altmar, Monday, 19 October

Overcast. High 52°, low 35°.

Pressure30.42 inHg

Wind9.1 mph S

Humidity46%

Visibility—

Dew point28°

Tue, 2059° / 40°

59 °

Altmar, Tuesday, 20 October

Overcast. High 59°, low 40°.

Pressure30.30 inHg

Wind10.5 mph S

Humidity35%

Visibility—

Dew point27°

Wed, 2164° / 42°

64 °

Altmar, Wednesday, 21 October

Clear. High 64°, low 42°.

Pressure30.27 inHg

Wind11.1 mph S

Humidity32%

Visibility—

Dew point29°

Thu, 2269° / 46°

69 °

Altmar, Thursday, 22 October

Clear. High 69°, low 46°.

Pressure30.12 inHg

Wind15.5 mph S

Humidity36%

Visibility—

Dew point37°

Fri, 2364° / 52°

0.03

64 °

Altmar, Friday, 23 October

Light rain. High 64°, low 52°.

Pressure29.97 inHg

Wind14.7 mph S

Humidity61%

Visibility—

Dew point46°

Sat, 2463° / 48°

0.08

63 °

Altmar, Saturday, 24 October

Light rain. High 63°, low 48°.

Pressure29.80 inHg

Wind12.7 mph S

Humidity54%

Visibility—

Dew point44°

Sun, 2555° / 43°

55 °

Altmar, Sunday, 25 October

Clear. High 55°, low 43°.

Pressure29.88 inHg

Wind18.3 mph W

Humidity46%

Visibility—

Dew point33°

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 Altmar, 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 Altmar, 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.