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As of 15:36 CDT

Weather in Grantfork, IL

86°Current weather

Grantfork, Thursday, 8 October, 15:36

Clear. Feels like 83°. High 86°, low 52°.

Pressure30.03 inHg
Wind4.6 mph S
Humidity24%
Visibility6.2 mi
Dew point45°
Fri, 0987° / 55°0Clear
87 °Clear

Grantfork, Friday, 9 October

Clear. High 87°, low 55°.

Pressure30.12 inHg
Wind11 mph S
Humidity29%
Visibility6.2 mi
Dew point46°
Sat, 1080° / 56°0Overcast
80 °Overcast

Grantfork, Saturday, 10 October

Overcast. High 80°, low 56°.

Pressure30.06 inHg
Wind5.4 mph SE
Humidity42%
Visibility6.2 mi
Dew point52°
Sun, 1181° / 58°0Clear
81 °Clear

Grantfork, Sunday, 11 October

Clear. High 81°, low 58°.

Pressure29.97 inHg
Wind7.1 mph NW
Humidity50%
Visibility6.2 mi
Dew point55°
Mon, 1292° / 62°0Mostly clear
92 °Mostly clear

Grantfork, Monday, 12 October

Mostly clear. High 92°, low 62°.

Pressure29.91 inHg
Wind8.9 mph SW
Humidity41%
Visibility6.2 mi
Dew point58°
Tue, 1388° / 69°0.12Light rain
88 °Light rain

Grantfork, Tuesday, 13 October

Light rain. High 88°, low 69°.

Pressure29.88 inHg
Wind9.4 mph SW
Humidity46%
Visibility—
Dew point62°
Wed, 1484° / 65°0.37Rain
84 °Rain

Grantfork, Wednesday, 14 October

Rain. High 84°, low 65°.

Pressure29.88 inHg
Wind12.8 mph S
Humidity67%
Visibility—
Dew point65°
Thu, 1592° / 73°0.02Light rain
92 °Light rain

Grantfork, Thursday, 15 October

Light rain. High 92°, low 73°.

Pressure29.97 inHg
Wind9.9 mph SW
Humidity42%
Visibility—
Dew point63°
Fri, 1676° / 57°0.12Light rain
76 °Light rain

Grantfork, Friday, 16 October

Light rain. High 76°, low 57°.

Pressure30.24 inHg
Wind17.3 mph N
Humidity75%
Visibility—
Dew point58°
Sat, 1758° / 45°0Mostly clear
58 °Mostly clear

Grantfork, Saturday, 17 October

Mostly clear. High 58°, low 45°.

Pressure30.47 inHg
Wind14.9 mph N
Humidity37%
Visibility—
Dew point31°
Sun, 1861° / 40°0Clear
61 °Clear

Grantfork, Sunday, 18 October

Clear. High 61°, low 40°.

Pressure30.53 inHg
Wind8.5 mph E
Humidity33%
Visibility—
Dew point27°
Mon, 1967° / 41°0Clear
67 °Clear

Grantfork, Monday, 19 October

Clear. High 67°, low 41°.

Pressure30.42 inHg
Wind9.1 mph SE
Humidity24%
Visibility—
Dew point23°
Tue, 2074° / 49°0Partly cloudy
74 °Partly cloudy

Grantfork, Tuesday, 20 October

Partly cloudy. High 74°, low 49°.

Pressure30.24 inHg
Wind11.6 mph S
Humidity29%
Visibility—
Dew point35°
Wed, 2172° / 56°0.16Light rain
72 °Light rain

Grantfork, Wednesday, 21 October

Light rain. High 72°, low 56°.

Pressure30.12 inHg
Wind13.4 mph SW
Humidity58%
Visibility—
Dew point52°
Thu, 2273° / 54°0Clear
73 °Clear

Grantfork, Thursday, 22 October

Clear. High 73°, low 54°.

Pressure30.18 inHg
Wind6.9 mph NW
Humidity44%
Visibility—
Dew point46°
Fri, 2376° / 54°0Overcast
76 °Overcast

Grantfork, Friday, 23 October

Overcast. High 76°, low 54°.

Pressure30.21 inHg
Wind6 mph E
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 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.