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As of 15:16 CDT

Weather in Erwin, IL

87°Current weather

Erwin, Saturday, 8 August, 15:16

Clear. Feels like 93°. High 87°, low 70°.

Pressure30.03 inHg
Wind4.4 mph NW
Humidity59%
Visibility6.2 mi
Dew point71°
Sun, 0996° / 71°0Overcast
96 °Overcast

Erwin, Sunday, 9 August

Overcast. High 96°, low 71°.

Pressure29.91 inHg
Wind11.1 mph SW
Humidity52%
Visibility6.2 mi
Dew point70°
Mon, 1098° / 75°0Partly cloudy
98 °Partly cloudy

Erwin, Monday, 10 August

Partly cloudy. High 98°, low 75°.

Pressure29.88 inHg
Wind12.3 mph SW
Humidity44%
Visibility6.2 mi
Dew point69°
Tue, 1196° / 81°0Overcast
96 °Overcast

Erwin, Tuesday, 11 August

Overcast. High 96°, low 81°.

Pressure29.80 inHg
Wind17.8 mph SW
Humidity45%
Visibility6.2 mi
Dew point67°
Wed, 1292° / 72°0.12Light rain
92 °Light rain

Erwin, Wednesday, 12 August

Light rain. High 92°, low 72°.

Pressure29.85 inHg
Wind12.6 mph NE
Humidity59%
Visibility6.2 mi
Dew point72°
Thu, 1375° / 68°0.35Rain
75 °Rain

Erwin, Thursday, 13 August

Rain. High 75°, low 68°.

Pressure29.88 inHg
Wind9.6 mph NW
Humidity93%
Visibility—
Dew point70°
Fri, 1479° / 58°0Clear
79 °Clear

Erwin, Friday, 14 August

Clear. High 79°, low 58°.

Pressure30.18 inHg
Wind10.2 mph NE
Humidity40%
Visibility—
Dew point49°
Sat, 1580° / 57°0Overcast
80 °Overcast

Erwin, Saturday, 15 August

Overcast. High 80°, low 57°.

Pressure30.27 inHg
Wind8.8 mph SE
Humidity43%
Visibility—
Dew point51°
Sun, 1680° / 61°0Light rain
80 °Light rain

Erwin, Sunday, 16 August

Light rain. High 80°, low 61°.

Pressure30.15 inHg
Wind13.4 mph S
Humidity66%
Visibility—
Dew point60°
Mon, 1790° / 69°0.06Light rain
90 °Light rain

Erwin, Monday, 17 August

Light rain. High 90°, low 69°.

Pressure29.91 inHg
Wind12.1 mph SE
Humidity60%
Visibility—
Dew point71°
Tue, 1891° / 72°0Overcast
91 °Overcast

Erwin, Tuesday, 18 August

Overcast. High 91°, low 72°.

Pressure30.00 inHg
Wind9.1 mph E
Humidity56%
Visibility—
Dew point68°
Wed, 1996° / 71°0Mostly clear
96 °Mostly clear

Erwin, Wednesday, 19 August

Mostly clear. High 96°, low 71°.

Pressure29.88 inHg
Wind7.4 mph SE
Humidity44%
Visibility—
Dew point65°
Thu, 2085° / 69°0.26Rain
85 °Rain

Erwin, Thursday, 20 August

Rain. High 85°, low 69°.

Pressure29.88 inHg
Wind11.4 mph NE
Humidity59%
Visibility—
Dew point67°
Fri, 2187° / 66°0Mostly clear
87 °Mostly clear

Erwin, Friday, 21 August

Mostly clear. High 87°, low 66°.

Pressure29.94 inHg
Wind10.3 mph NE
Humidity41%
Visibility—
Dew point56°
Sat, 2289° / 64°0.03Light rain
89 °Light rain

Erwin, Saturday, 22 August

Light rain. High 89°, low 64°.

Pressure29.91 inHg
Wind19.7 mph NE
Humidity41%
Visibility—
Dew point58°
Sun, 2379° / 56°0.03Light rain
79 °Light rain

Erwin, Sunday, 23 August

Light rain. High 79°, low 56°.

Pressure30.15 inHg
Wind12.9 mph NE
Humidity36%
Visibility—
Dew point43°

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 Erwin, 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 Erwin, 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.