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As of 12:10 CDT

Weather in Grantfork, IL

82°Current weather

Grantfork, Thursday, 8 October, 12:10

Clear. Feels like 81°. High 82°, low 52°.

Pressure30.09 inHg
Wind3.9 mph S
Humidity30%
Visibility6.2 mi
Dew point48°
Fri, 0987° / 54°0Clear
87 °Clear

Grantfork, Friday, 9 October

Clear. High 87°, low 54°.

Pressure30.12 inHg
Wind7.7 mph S
Humidity29%
Visibility6.2 mi
Dew point46°
Sat, 1082° / 57°0.02Light rain
82 °Light rain

Grantfork, Saturday, 10 October

Light rain. High 82°, low 57°.

Pressure30.09 inHg
Wind5.5 mph SE
Humidity46%
Visibility6.2 mi
Dew point56°
Sun, 1180° / 60°0Clear
80 °Clear

Grantfork, Sunday, 11 October

Clear. High 80°, low 60°.

Pressure29.94 inHg
Wind7.6 mph N
Humidity54%
Visibility6.2 mi
Dew point57°
Mon, 1291° / 61°0Mostly clear
91 °Mostly clear

Grantfork, Monday, 12 October

Mostly clear. High 91°, low 61°.

Pressure29.91 inHg
Wind8.1 mph SW
Humidity40%
Visibility6.2 mi
Dew point57°
Tue, 1390° / 69°0Partly cloudy
90 °Partly cloudy

Grantfork, Tuesday, 13 October

Partly cloudy. High 90°, low 69°.

Pressure29.85 inHg
Wind9.8 mph SW
Humidity43%
Visibility—
Dew point61°
Wed, 1492° / 63°0Overcast
92 °Overcast

Grantfork, Wednesday, 14 October

Overcast. High 92°, low 63°.

Pressure29.91 inHg
Wind12.9 mph S
Humidity44%
Visibility—
Dew point58°
Thu, 1595° / 76°0Clear
95 °Clear

Grantfork, Thursday, 15 October

Clear. High 95°, low 76°.

Pressure29.91 inHg
Wind18.5 mph SW
Humidity35%
Visibility—
Dew point61°
Fri, 1680° / 56°0.51Rain
80 °Rain

Grantfork, Friday, 16 October

Rain. High 80°, low 56°.

Pressure30.24 inHg
Wind15.6 mph N
Humidity68%
Visibility—
Dew point55°
Sat, 1765° / 49°0Overcast
65 °Overcast

Grantfork, Saturday, 17 October

Overcast. High 65°, low 49°.

Pressure30.53 inHg
Wind14.5 mph NE
Humidity43%
Visibility—
Dew point39°
Sun, 1867° / 43°0Overcast
67 °Overcast

Grantfork, Sunday, 18 October

Overcast. High 67°, low 43°.

Pressure30.39 inHg
Wind9.8 mph E
Humidity30%
Visibility—
Dew point29°
Mon, 1975° / 54°0.03Light rain
75 °Light rain

Grantfork, Monday, 19 October

Light rain. High 75°, low 54°.

Pressure30.24 inHg
Wind15.2 mph S
Humidity59%
Visibility—
Dew point54°
Tue, 2076° / 60°0.05Light rain
76 °Light rain

Grantfork, Tuesday, 20 October

Light rain. High 76°, low 60°.

Pressure30.18 inHg
Wind11.3 mph S
Humidity57%
Visibility—
Dew point58°
Wed, 2177° / 58°0.03Light rain
77 °Light rain

Grantfork, Wednesday, 21 October

Light rain. High 77°, low 58°.

Pressure30.09 inHg
Wind7.9 mph SW
Humidity58%
Visibility—
Dew point57°
Thu, 2274° / 53°0.03Light rain
74 °Light rain

Grantfork, Thursday, 22 October

Light rain. High 74°, low 53°.

Pressure29.94 inHg
Wind16.7 mph W
Humidity55%
Visibility—
Dew point55°
Fri, 2366° / 44°0Clear
66 °Clear

Grantfork, Friday, 23 October

Clear. High 66°, low 44°.

Pressure30.18 inHg
Wind9 mph SE
Humidity32%
Visibility—
Dew point30°

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 Grantfork, 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 Grantfork, 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.