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As of 11:57 CDT

Weather in Grand Tower, IL

64°Current weather

Grand Tower, Wednesday, 21 October, 11:57

Mostly clear. Feels like 63°. High 72°, low 46°.

Pressure30.27 inHg
Wind1.8 mph NE
Humidity51%
Visibility6.2 mi
Dew point46°
Thu, 2275° / 48°0Clear
75 °Clear

Grand Tower, Thursday, 22 October

Clear. High 75°, low 48°.

Pressure30.27 inHg
Wind3.8 mph N
Humidity47%
Visibility6.2 mi
Dew point49°
Fri, 2373° / 50°0Clear
73 °Clear

Grand Tower, Friday, 23 October

Clear. High 73°, low 50°.

Pressure30.30 inHg
Wind3.3 mph SE
Humidity47%
Visibility6.2 mi
Dew point49°
Sat, 2473° / 50°0Partly cloudy
73 °Partly cloudy

Grand Tower, Saturday, 24 October

Partly cloudy. High 73°, low 50°.

Pressure30.36 inHg
Wind3.6 mph SE
Humidity48%
Visibility6.2 mi
Dew point48°
Sun, 2574° / 52°0Overcast
74 °Overcast

Grand Tower, Sunday, 25 October

Overcast. High 74°, low 52°.

Pressure30.36 inHg
Wind6.2 mph S
Humidity38%
Visibility—
Dew point44°
Mon, 2672° / 53°0Overcast
72 °Overcast

Grand Tower, Monday, 26 October

Overcast. High 72°, low 53°.

Pressure30.27 inHg
Wind7.2 mph S
Humidity42%
Visibility—
Dew point45°
Tue, 2774° / 56°0Overcast
74 °Overcast

Grand Tower, Tuesday, 27 October

Overcast. High 74°, low 56°.

Pressure30.24 inHg
Wind7 mph S
Humidity34%
Visibility—
Dew point42°
Wed, 2879° / 56°0Mostly clear
79 °Mostly clear

Grand Tower, Wednesday, 28 October

Mostly clear. High 79°, low 56°.

Pressure30.15 inHg
Wind13.5 mph SW
Humidity28%
Visibility—
Dew point39°
Thu, 2973° / 62°0.02Light rain
73 °Light rain

Grand Tower, Thursday, 29 October

Light rain. High 73°, low 62°.

Pressure30.15 inHg
Wind10.6 mph W
Humidity37%
Visibility—
Dew point44°
Fri, 3068° / 58°0.02Light rain
68 °Light rain

Grand Tower, Friday, 30 October

Light rain. High 68°, low 58°.

Pressure30.15 inHg
Wind7.6 mph E
Humidity75%
Visibility—
Dew point55°
Sat, 3181° / 58°0Overcast
81 °Overcast

Grand Tower, Saturday, 31 October

Overcast. High 81°, low 58°.

Pressure29.94 inHg
Wind21.8 mph S
Humidity36%
Visibility—
Dew point49°
Sun, 0172° / 61°0.34Rain
72 °Rain

Grand Tower, Sunday, 1 November

Rain. High 72°, low 61°.

Pressure29.94 inHg
Wind21.5 mph S
Humidity91%
Visibility—
Dew point59°
Mon, 0264° / 54°0.16Light rain
64 °Light rain

Grand Tower, Monday, 2 November

Light rain. High 64°, low 54°.

Pressure29.80 inHg
Wind13.5 mph NW
Humidity90%
Visibility—
Dew point55°
Tue, 0355° / 52°0.52Rain
55 °Rain

Grand Tower, Tuesday, 3 November

Rain. High 55°, low 52°.

Pressure29.62 inHg
Wind19.5 mph NW
Humidity92%
Visibility—
Dew point52°
Wed, 0453° / 48°0.21Light rain
53 °Light rain

Grand Tower, Wednesday, 4 November

Light rain. High 53°, low 48°.

Pressure29.47 inHg
Wind18.6 mph NW
Humidity84%
Visibility—
Dew point48°
Thu, 0562° / 49°0.02Light rain
62 °Light rain

Grand Tower, Thursday, 5 November

Light rain. High 62°, low 49°.

Pressure29.71 inHg
Wind14.2 mph SW
Humidity51%
Visibility—
Dew point40°

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.