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As of 06:26 CDT

Weather in Grand Tower, IL

55°Current weather

Grand Tower, Friday, 16 October, 06:26

Light rain. Feels like 54°. High 66°, low 53°.

Pressure30.12 inHg
Wind15.9 mph NW
Humidity83%
Visibility6.2 mi
Dew point50°
Sat, 1760° / 47°0Clear
60 °Clear

Grand Tower, Saturday, 17 October

Clear. High 60°, low 47°.

Pressure30.53 inHg
Wind7.4 mph NE
Humidity52%
Visibility6.2 mi
Dew point39°
Sun, 1865° / 44°0Clear
65 °Clear

Grand Tower, Sunday, 18 October

Clear. High 65°, low 44°.

Pressure30.50 inHg
Wind5.5 mph SE
Humidity45%
Visibility6.2 mi
Dew point38°
Mon, 1969° / 46°0Clear
69 °Clear

Grand Tower, Monday, 19 October

Clear. High 69°, low 46°.

Pressure30.39 inHg
Wind1.3 mph E
Humidity47%
Visibility6.2 mi
Dew point44°
Tue, 2069° / 47°0Clear
69 °Clear

Grand Tower, Tuesday, 20 October

Clear. High 69°, low 47°.

Pressure30.33 inHg
Wind6.4 mph NE
Humidity40%
Visibility—
Dew point41°
Wed, 2171° / 47°0Clear
71 °Clear

Grand Tower, Wednesday, 21 October

Clear. High 71°, low 47°.

Pressure30.27 inHg
Wind4.3 mph NE
Humidity42%
Visibility—
Dew point42°
Thu, 2278° / 53°0Partly cloudy
78 °Partly cloudy

Grand Tower, Thursday, 22 October

Partly cloudy. High 78°, low 53°.

Pressure30.18 inHg
Wind4.2 mph S
Humidity25%
Visibility—
Dew point35°
Fri, 2380° / 60°0Mostly clear
80 °Mostly clear

Grand Tower, Friday, 23 October

Mostly clear. High 80°, low 60°.

Pressure30.15 inHg
Wind5.5 mph SE
Humidity25%
Visibility—
Dew point37°
Sat, 2479° / 55°0Partly cloudy
79 °Partly cloudy

Grand Tower, Saturday, 24 October

Partly cloudy. High 79°, low 55°.

Pressure30.18 inHg
Wind5.6 mph SE
Humidity29%
Visibility—
Dew point40°
Sun, 2579° / 56°0Overcast
79 °Overcast

Grand Tower, Sunday, 25 October

Overcast. High 79°, low 56°.

Pressure30.12 inHg
Wind4.7 mph E
Humidity28%
Visibility—
Dew point39°
Mon, 2681° / 55°0.09Light rain
81 °Light rain

Grand Tower, Monday, 26 October

Light rain. High 81°, low 55°.

Pressure29.91 inHg
Wind13 mph S
Humidity29%
Visibility—
Dew point41°
Tue, 2768° / 49°0.01Light rain
68 °Light rain

Grand Tower, Tuesday, 27 October

Light rain. High 68°, low 49°.

Pressure30.00 inHg
Wind9.2 mph W
Humidity46%
Visibility—
Dew point41°
Wed, 2869° / 54°0.1Light rain
69 °Light rain

Grand Tower, Wednesday, 28 October

Light rain. High 69°, low 54°.

Pressure30.03 inHg
Wind10.1 mph S
Humidity32%
Visibility—
Dew point36°
Thu, 2962° / 55°0.15Light rain
62 °Light rain

Grand Tower, Thursday, 29 October

Light rain. High 62°, low 55°.

Pressure29.80 inHg
Wind8.3 mph SE
Humidity93%
Visibility—
Dew point58°
Fri, 3079° / 55°0.02Light rain
79 °Light rain

Grand Tower, Friday, 30 October

Light rain. High 79°, low 55°.

Pressure29.59 inHg
Wind25.2 mph SW
Humidity66%
Visibility—
Dew point61°
Sat, 3166° / 43°0Clear
66 °Clear

Grand Tower, Saturday, 31 October

Clear. High 66°, low 43°.

Pressure30.00 inHg
Wind14.2 mph NW
Humidity32%
Visibility—
Dew point29°

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.