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As of 06:41 CDT

Weather in Diamond City, IL

72°Current weather

Diamond City, Sunday, 9 August, 06:41

Clear. Feels like 73°. High 92°, low 71°.

Pressure30.06 inHg
Wind4.8 mph S
Humidity96%
Visibility6.2 mi
Dew point70°
Mon, 1096° / 76°0Clear
96 °Clear

Diamond City, Monday, 10 August

Clear. High 96°, low 76°.

Pressure29.97 inHg
Wind15.2 mph SW
Humidity46%
Visibility6.2 mi
Dew point69°
Tue, 1198° / 78°0Overcast
98 °Overcast

Diamond City, Tuesday, 11 August

Overcast. High 98°, low 78°.

Pressure29.91 inHg
Wind8.7 mph W
Humidity51%
Visibility6.2 mi
Dew point71°
Wed, 1299° / 73°0.32Rain
99 °Rain

Diamond City, Wednesday, 12 August

Rain. High 99°, low 73°.

Pressure29.83 inHg
Wind13.3 mph W
Humidity44%
Visibility6.2 mi
Dew point70°
Thu, 1385° / 71°0.36Rain
85 °Rain

Diamond City, Thursday, 13 August

Rain. High 85°, low 71°.

Pressure29.91 inHg
Wind12.5 mph NE
Humidity70%
Visibility—
Dew point72°
Fri, 1477° / 68°0.24Rain
77 °Rain

Diamond City, Friday, 14 August

Rain. High 77°, low 68°.

Pressure30.03 inHg
Wind13.8 mph NE
Humidity76%
Visibility—
Dew point68°
Sat, 1585° / 66°0.06Light rain
85 °Light rain

Diamond City, Saturday, 15 August

Light rain. High 85°, low 66°.

Pressure30.12 inHg
Wind11.3 mph E
Humidity71%
Visibility—
Dew point69°
Sun, 1692° / 69°0.01Light rain
92 °Light rain

Diamond City, Sunday, 16 August

Light rain. High 92°, low 69°.

Pressure30.00 inHg
Wind10.2 mph NW
Humidity52%
Visibility—
Dew point69°
Mon, 1788° / 71°0.01Light rain
88 °Light rain

Diamond City, Monday, 17 August

Light rain. High 88°, low 71°.

Pressure30.03 inHg
Wind7.5 mph N
Humidity60%
Visibility—
Dew point69°
Tue, 1889° / 68°0Clear
89 °Clear

Diamond City, Tuesday, 18 August

Clear. High 89°, low 68°.

Pressure30.00 inHg
Wind8.5 mph E
Humidity53%
Visibility—
Dew point65°
Wed, 1999° / 73°0Overcast
99 °Overcast

Diamond City, Wednesday, 19 August

Overcast. High 99°, low 73°.

Pressure29.94 inHg
Wind15 mph SE
Humidity44%
Visibility—
Dew point68°
Thu, 20111° / 80°0Overcast
111 °Overcast

Diamond City, Thursday, 20 August

Overcast. High 111°, low 80°.

Pressure29.85 inHg
Wind11.9 mph S
Humidity22%
Visibility—
Dew point58°
Fri, 21105° / 81°0Mostly clear
105 °Mostly clear

Diamond City, Friday, 21 August

Mostly clear. High 105°, low 81°.

Pressure29.85 inHg
Wind12.9 mph SW
Humidity29%
Visibility—
Dew point61°
Sat, 22108° / 78°0Clear
108 °Clear

Diamond City, Saturday, 22 August

Clear. High 108°, low 78°.

Pressure29.85 inHg
Wind11.1 mph SE
Humidity26%
Visibility—
Dew point60°
Sun, 23107° / 79°0.16Light rain
107 °Light rain

Diamond City, Sunday, 23 August

Light rain. High 107°, low 79°.

Pressure29.88 inHg
Wind23.9 mph SW
Humidity31%
Visibility—
Dew point64°
Mon, 2498° / 73°0.17Light rain
98 °Light rain

Diamond City, Monday, 24 August

Light rain. High 98°, low 73°.

Pressure29.97 inHg
Wind8.8 mph E
Humidity43%
Visibility—
Dew point67°

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 Diamond City, 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 Diamond City, 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.