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As of 14:28 CDT

Weather in Altmar, IL

81°Current weather

Altmar, Saturday, 8 August, 14:28

Clear. Feels like 85°. High 82°, low 69°.

Pressure30.00 inHg
Wind1 mph NE
Humidity74%
Visibility6.2 mi
Dew point70°
Sun, 0988° / 65°0.2Rain
88 °Rain

Altmar, Sunday, 9 August

Rain. High 88°, low 65°.

Pressure29.91 inHg
Wind8.3 mph S
Humidity79%
Visibility6.2 mi
Dew point75°
Mon, 1089° / 74°0.02Light rain
89 °Light rain

Altmar, Monday, 10 August

Light rain. High 89°, low 74°.

Pressure29.88 inHg
Wind8.7 mph S
Humidity75%
Visibility6.2 mi
Dew point75°
Tue, 1187° / 71°0.15Rain
87 °Rain

Altmar, Tuesday, 11 August

Rain. High 87°, low 71°.

Pressure29.80 inHg
Wind14.6 mph SW
Humidity76%
Visibility6.2 mi
Dew point74°
Wed, 1276° / 69°0.09Light rain
76 °Light rain

Altmar, Wednesday, 12 August

Light rain. High 76°, low 69°.

Pressure29.91 inHg
Wind7.7 mph N
Humidity81%
Visibility6.2 mi
Dew point69°
Thu, 1372° / 65°0.13Light rain
72 °Light rain

Altmar, Thursday, 13 August

Light rain. High 72°, low 65°.

Pressure29.91 inHg
Wind12.6 mph E
Humidity81%
Visibility—
Dew point65°
Fri, 1473° / 55°0Clear
73 °Clear

Altmar, Friday, 14 August

Clear. High 73°, low 55°.

Pressure30.18 inHg
Wind7.6 mph N
Humidity66%
Visibility—
Dew point58°
Sat, 1573° / 55°0Overcast
73 °Overcast

Altmar, Saturday, 15 August

Overcast. High 73°, low 55°.

Pressure30.33 inHg
Wind7.4 mph SE
Humidity62%
Visibility—
Dew point56°
Sun, 1676° / 57°0Overcast
76 °Overcast

Altmar, Sunday, 16 August

Overcast. High 76°, low 57°.

Pressure30.18 inHg
Wind10.4 mph S
Humidity68%
Visibility—
Dew point61°
Mon, 1779° / 67°0.03Light rain
79 °Light rain

Altmar, Monday, 17 August

Light rain. High 79°, low 67°.

Pressure29.97 inHg
Wind7.2 mph S
Humidity85%
Visibility—
Dew point72°
Tue, 1881° / 69°0.02Light rain
81 °Light rain

Altmar, Tuesday, 18 August

Light rain. High 81°, low 69°.

Pressure30.03 inHg
Wind7.2 mph E
Humidity78%
Visibility—
Dew point71°
Wed, 1983° / 65°0.17Light rain
83 °Light rain

Altmar, Wednesday, 19 August

Light rain. High 83°, low 65°.

Pressure29.91 inHg
Wind7.9 mph S
Humidity72%
Visibility—
Dew point71°
Thu, 2078° / 67°0.44Rain
78 °Rain

Altmar, Thursday, 20 August

Rain. High 78°, low 67°.

Pressure29.88 inHg
Wind9.6 mph N
Humidity75%
Visibility—
Dew point68°
Fri, 2179° / 62°0Clear
79 °Clear

Altmar, Friday, 21 August

Clear. High 79°, low 62°.

Pressure29.97 inHg
Wind7 mph N
Humidity65%
Visibility—
Dew point63°
Sat, 2278° / 59°0.02Light rain
78 °Light rain

Altmar, Saturday, 22 August

Light rain. High 78°, low 59°.

Pressure29.94 inHg
Wind15.7 mph NE
Humidity68%
Visibility—
Dew point65°
Sun, 2367° / 49°0Mostly clear
67 °Mostly clear

Altmar, Sunday, 23 August

Mostly clear. High 67°, low 49°.

Pressure30.24 inHg
Wind13 mph E
Humidity52%
Visibility—
Dew point45°

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.