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As of 05:35 CDT

Weather in Altmar, IL

54°Current weather

Altmar, Friday, 9 October, 05:35

Overcast. Feels like 53°. High 78°, low 53°.

Pressure30.09 inHg
Wind7.2 mph SE
Humidity89%
Visibility6.2 mi
Dew point51°
Sat, 1080° / 58°0Overcast
80 °Overcast

Altmar, Saturday, 10 October

Overcast. High 80°, low 58°.

Pressure30.09 inHg
Wind8.6 mph SE
Humidity49%
Visibility6.2 mi
Dew point54°
Sun, 1174° / 57°0Clear
74 °Clear

Altmar, Sunday, 11 October

Clear. High 74°, low 57°.

Pressure29.91 inHg
Wind2.8 mph N
Humidity65%
Visibility6.2 mi
Dew point57°
Mon, 1284° / 60°0Overcast
84 °Overcast

Altmar, Monday, 12 October

Overcast. High 84°, low 60°.

Pressure29.83 inHg
Wind11.3 mph SW
Humidity51%
Visibility6.2 mi
Dew point62°
Tue, 1385° / 65°0.03Light rain
85 °Light rain

Altmar, Tuesday, 13 October

Light rain. High 85°, low 65°.

Pressure29.80 inHg
Wind10.5 mph SW
Humidity61%
Visibility—
Dew point66°
Wed, 1474° / 62°0.84Rain
74 °Rain

Altmar, Wednesday, 14 October

Rain. High 74°, low 62°.

Pressure29.85 inHg
Wind8.7 mph E
Humidity92%
Visibility—
Dew point69°
Thu, 1574° / 59°1.83Heavy rain
74 °Heavy rain

Altmar, Thursday, 15 October

Heavy rain. High 74°, low 59°.

Pressure29.80 inHg
Wind21.7 mph SW
Humidity83%
Visibility—
Dew point64°
Fri, 1659° / 46°0Partly cloudy
59 °Partly cloudy

Altmar, Friday, 16 October

Partly cloudy. High 59°, low 46°.

Pressure30.03 inHg
Wind22.6 mph W
Humidity47%
Visibility—
Dew point33°
Sat, 1747° / 43°0Overcast
47 °Overcast

Altmar, Saturday, 17 October

Overcast. High 47°, low 43°.

Pressure30.30 inHg
Wind15.8 mph NW
Humidity63%
Visibility—
Dew point33°
Sun, 1855° / 38°0Clear
55 °Clear

Altmar, Sunday, 18 October

Clear. High 55°, low 38°.

Pressure30.33 inHg
Wind6.1 mph SW
Humidity47%
Visibility—
Dew point31°
Mon, 1960° / 43°0Overcast
60 °Overcast

Altmar, Monday, 19 October

Overcast. High 60°, low 43°.

Pressure30.36 inHg
Wind5.7 mph E
Humidity44%
Visibility—
Dew point35°
Tue, 2064° / 45°0Clear
64 °Clear

Altmar, Tuesday, 20 October

Clear. High 64°, low 45°.

Pressure30.39 inHg
Wind7.7 mph SE
Humidity41%
Visibility—
Dew point35°
Wed, 2166° / 46°0Clear
66 °Clear

Altmar, Wednesday, 21 October

Clear. High 66°, low 46°.

Pressure30.30 inHg
Wind6.8 mph SE
Humidity42%
Visibility—
Dew point38°
Thu, 2267° / 48°0Clear
67 °Clear

Altmar, Thursday, 22 October

Clear. High 67°, low 48°.

Pressure30.24 inHg
Wind6.8 mph NE
Humidity42%
Visibility—
Dew point39°
Fri, 2367° / 48°0Clear
67 °Clear

Altmar, Friday, 23 October

Clear. High 67°, low 48°.

Pressure30.18 inHg
Wind6.9 mph NE
Humidity50%
Visibility—
Dew point44°
Sat, 2467° / 49°0Clear
67 °Clear

Altmar, Saturday, 24 October

Clear. High 67°, low 49°.

Pressure30.12 inHg
Wind6.2 mph E
Humidity46%
Visibility—
Dew point42°

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.