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As of 15:47 CDT

Weather in Griffin, IL

84°Current weather

Griffin, Saturday, 8 August, 15:47

Clear. Feels like 86°. High 84°, low 68°.

Pressure30.03 inHg
Wind2.2 mph NW
Humidity56%
Visibility6.2 mi
Dew point66°
Sun, 0991° / 66°0Overcast
91 °Overcast

Griffin, Sunday, 9 August

Overcast. High 91°, low 66°.

Pressure29.88 inHg
Wind10.8 mph SW
Humidity69%
Visibility6.2 mi
Dew point73°
Mon, 1087° / 73°0.01Light rain
87 °Light rain

Griffin, Monday, 10 August

Light rain. High 87°, low 73°.

Pressure29.85 inHg
Wind3.6 mph SW
Humidity76%
Visibility6.2 mi
Dew point73°
Tue, 1192° / 73°0.01Light rain
92 °Light rain

Griffin, Tuesday, 11 August

Light rain. High 92°, low 73°.

Pressure29.77 inHg
Wind14.2 mph SW
Humidity66%
Visibility6.2 mi
Dew point72°
Wed, 1281° / 70°0.05Light rain
81 °Light rain

Griffin, Wednesday, 12 August

Light rain. High 81°, low 70°.

Pressure29.88 inHg
Wind3.8 mph NE
Humidity86%
Visibility6.2 mi
Dew point69°
Thu, 1374° / 63°0.31Rain
74 °Rain

Griffin, Thursday, 13 August

Rain. High 74°, low 63°.

Pressure29.91 inHg
Wind11.3 mph NE
Humidity80%
Visibility—
Dew point66°
Fri, 1476° / 57°0Clear
76 °Clear

Griffin, Friday, 14 August

Clear. High 76°, low 57°.

Pressure30.18 inHg
Wind7.3 mph E
Humidity59%
Visibility—
Dew point57°
Sat, 1576° / 57°0Overcast
76 °Overcast

Griffin, Saturday, 15 August

Overcast. High 76°, low 57°.

Pressure30.30 inHg
Wind8.8 mph SE
Humidity60%
Visibility—
Dew point57°
Sun, 1675° / 59°0Overcast
75 °Overcast

Griffin, Sunday, 16 August

Overcast. High 75°, low 59°.

Pressure30.15 inHg
Wind12.5 mph SE
Humidity69%
Visibility—
Dew point60°
Mon, 1783° / 67°0.02Light rain
83 °Light rain

Griffin, Monday, 17 August

Light rain. High 83°, low 67°.

Pressure29.94 inHg
Wind7 mph SE
Humidity80%
Visibility—
Dew point71°
Tue, 1885° / 71°0.01Light rain
85 °Light rain

Griffin, Tuesday, 18 August

Light rain. High 85°, low 71°.

Pressure30.00 inHg
Wind7.7 mph SE
Humidity65%
Visibility—
Dew point70°
Wed, 1989° / 69°0.11Light rain
89 °Light rain

Griffin, Wednesday, 19 August

Light rain. High 89°, low 69°.

Pressure29.88 inHg
Wind12.3 mph NE
Humidity63%
Visibility—
Dew point70°
Thu, 2080° / 66°0.34Rain
80 °Rain

Griffin, Thursday, 20 August

Rain. High 80°, low 66°.

Pressure29.91 inHg
Wind10.5 mph NE
Humidity66%
Visibility—
Dew point65°
Fri, 2182° / 63°0Light rain
82 °Light rain

Griffin, Friday, 21 August

Light rain. High 82°, low 63°.

Pressure29.97 inHg
Wind6.1 mph NE
Humidity58%
Visibility—
Dew point61°
Sat, 2281° / 61°0.03Light rain
81 °Light rain

Griffin, Saturday, 22 August

Light rain. High 81°, low 61°.

Pressure29.91 inHg
Wind16.2 mph NE
Humidity57%
Visibility—
Dew point62°
Sun, 2369° / 46°0Mostly clear
69 °Mostly clear

Griffin, Sunday, 23 August

Mostly clear. High 69°, low 46°.

Pressure30.21 inHg
Wind12.6 mph E
Humidity49%
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 Griffin, 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 Griffin, 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.