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As of 09:25 CDT

Weather in Grand Tower, IL

54°Current weather

Grand Tower, Friday, 16 October, 09:25

Overcast. Feels like 52°. High 66°, low 52°.

Pressure30.21 inHg
Wind16 mph NW
Humidity75%
Visibility6.2 mi
Dew point46°
Sat, 1759° / 47°0Clear
59 °Clear

Grand Tower, Saturday, 17 October

Clear. High 59°, low 47°.

Pressure30.56 inHg
Wind7.4 mph NE
Humidity52%
Visibility6.2 mi
Dew point39°
Sun, 1864° / 43°0Clear
64 °Clear

Grand Tower, Sunday, 18 October

Clear. High 64°, low 43°.

Pressure30.50 inHg
Wind5.3 mph SE
Humidity46%
Visibility6.2 mi
Dew point39°
Mon, 1968° / 46°0Clear
68 °Clear

Grand Tower, Monday, 19 October

Clear. High 68°, low 46°.

Pressure30.36 inHg
Wind1.2 mph E
Humidity48%
Visibility6.2 mi
Dew point44°
Tue, 2070° / 47°0Clear
70 °Clear

Grand Tower, Tuesday, 20 October

Clear. High 70°, low 47°.

Pressure30.30 inHg
Wind5.2 mph NE
Humidity41%
Visibility—
Dew point42°
Wed, 2171° / 48°0Clear
71 °Clear

Grand Tower, Wednesday, 21 October

Clear. High 71°, low 48°.

Pressure30.27 inHg
Wind4.2 mph E
Humidity40%
Visibility—
Dew point42°
Thu, 2277° / 52°0Partly cloudy
77 °Partly cloudy

Grand Tower, Thursday, 22 October

Partly cloudy. High 77°, low 52°.

Pressure30.15 inHg
Wind5.5 mph SW
Humidity25%
Visibility—
Dew point34°
Fri, 2380° / 58°0Clear
80 °Clear

Grand Tower, Friday, 23 October

Clear. High 80°, low 58°.

Pressure30.15 inHg
Wind5.8 mph E
Humidity28%
Visibility—
Dew point40°
Sat, 2474° / 54°0Overcast
74 °Overcast

Grand Tower, Saturday, 24 October

Overcast. High 74°, low 54°.

Pressure30.21 inHg
Wind6.4 mph E
Humidity46%
Visibility—
Dew point48°
Sun, 2571° / 50°0Overcast
71 °Overcast

Grand Tower, Sunday, 25 October

Overcast. High 71°, low 50°.

Pressure30.15 inHg
Wind4.7 mph SE
Humidity31%
Visibility—
Dew point35°
Mon, 2677° / 52°0Overcast
77 °Overcast

Grand Tower, Monday, 26 October

Overcast. High 77°, low 52°.

Pressure30.12 inHg
Wind9.9 mph S
Humidity31%
Visibility—
Dew point39°
Tue, 2778° / 57°0Overcast
78 °Overcast

Grand Tower, Tuesday, 27 October

Overcast. High 78°, low 57°.

Pressure30.18 inHg
Wind5.4 mph S
Humidity35%
Visibility—
Dew point44°
Wed, 2876° / 62°0Overcast
76 °Overcast

Grand Tower, Wednesday, 28 October

Overcast. High 76°, low 62°.

Pressure30.09 inHg
Wind12.5 mph S
Humidity47%
Visibility—
Dew point52°
Thu, 2981° / 62°0Overcast
81 °Overcast

Grand Tower, Thursday, 29 October

Overcast. High 81°, low 62°.

Pressure30.03 inHg
Wind15.5 mph S
Humidity51%
Visibility—
Dew point57°
Fri, 3084° / 65°0.03Light rain
84 °Light rain

Grand Tower, Friday, 30 October

Light rain. High 84°, low 65°.

Pressure30.03 inHg
Wind8.4 mph S
Humidity44%
Visibility—
Dew point55°
Sat, 3181° / 66°0.04Light rain
81 °Light rain

Grand Tower, Saturday, 31 October

Light rain. High 81°, low 66°.

Pressure29.97 inHg
Wind10.2 mph SE
Humidity68%
Visibility—
Dew point62°

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 Grand Tower, 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 Grand Tower, 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.