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As of 02:44 CDT

Weather in Dorchester, IL

73°Current weather

Dorchester, Sunday, 9 August, 02:44

Mostly clear. Feels like 75°. High 95°, low 72°.

Pressure30.00 inHg
Wind7 mph S
Humidity93%
Visibility6.2 mi
Dew point71°
Mon, 1099° / 71°0.28Heavy rain
99 °Heavy rain

Dorchester, Monday, 10 August

Heavy rain. High 99°, low 71°.

Pressure29.94 inHg
Wind11.1 mph SW
Humidity58%
Visibility6.2 mi
Dew point74°
Tue, 1196° / 73°0.01Light rain
96 °Light rain

Dorchester, Tuesday, 11 August

Light rain. High 96°, low 73°.

Pressure29.88 inHg
Wind12.3 mph SW
Humidity61%
Visibility6.2 mi
Dew point74°
Wed, 1289° / 72°0.2Rain
89 °Rain

Dorchester, Wednesday, 12 August

Rain. High 89°, low 72°.

Pressure29.83 inHg
Wind6.6 mph NW
Humidity68%
Visibility6.2 mi
Dew point73°
Thu, 1383° / 69°0.36Light rain
83 °Light rain

Dorchester, Thursday, 13 August

Light rain. High 83°, low 69°.

Pressure29.91 inHg
Wind12.2 mph NE
Humidity69%
Visibility—
Dew point70°
Fri, 1473° / 64°0.2Light rain
73 °Light rain

Dorchester, Friday, 14 August

Light rain. High 73°, low 64°.

Pressure30.06 inHg
Wind15.8 mph NE
Humidity85%
Visibility—
Dew point64°
Sat, 1582° / 64°0.12Light rain
82 °Light rain

Dorchester, Saturday, 15 August

Light rain. High 82°, low 64°.

Pressure30.12 inHg
Wind13.3 mph SE
Humidity78%
Visibility—
Dew point68°
Sun, 1686° / 69°0Overcast
86 °Overcast

Dorchester, Sunday, 16 August

Overcast. High 86°, low 69°.

Pressure30.03 inHg
Wind9.2 mph E
Humidity75%
Visibility—
Dew point73°
Mon, 1784° / 69°0Partly cloudy
84 °Partly cloudy

Dorchester, Monday, 17 August

Partly cloudy. High 84°, low 69°.

Pressure30.06 inHg
Wind8.1 mph E
Humidity69%
Visibility—
Dew point69°
Tue, 1885° / 66°0Overcast
85 °Overcast

Dorchester, Tuesday, 18 August

Overcast. High 85°, low 66°.

Pressure29.97 inHg
Wind11.4 mph SE
Humidity66%
Visibility—
Dew point68°
Wed, 1998° / 75°0Partly cloudy
98 °Partly cloudy

Dorchester, Wednesday, 19 August

Partly cloudy. High 98°, low 75°.

Pressure29.88 inHg
Wind12.5 mph S
Humidity52%
Visibility—
Dew point71°
Thu, 20108° / 78°0Partly cloudy
108 °Partly cloudy

Dorchester, Thursday, 20 August

Partly cloudy. High 108°, low 78°.

Pressure29.83 inHg
Wind12.2 mph SW
Humidity41%
Visibility—
Dew point70°
Fri, 2196° / 75°0Clear
96 °Clear

Dorchester, Friday, 21 August

Clear. High 96°, low 75°.

Pressure29.85 inHg
Wind10.2 mph E
Humidity54%
Visibility—
Dew point71°
Sat, 22102° / 76°0Clear
102 °Clear

Dorchester, Saturday, 22 August

Clear. High 102°, low 76°.

Pressure29.85 inHg
Wind8.7 mph SE
Humidity40%
Visibility—
Dew point67°
Sun, 23103° / 75°0.02Light rain
103 °Light rain

Dorchester, Sunday, 23 August

Light rain. High 103°, low 75°.

Pressure29.85 inHg
Wind11 mph SW
Humidity49%
Visibility—
Dew point69°
Mon, 2493° / 73°0.04Light rain
93 °Light rain

Dorchester, Monday, 24 August

Light rain. High 93°, low 73°.

Pressure30.00 inHg
Wind9.8 mph E
Humidity61%
Visibility—
Dew point71°

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 Dorchester, 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 Dorchester, 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.