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As of 23:50 CDT

Weather in Vandalia, IL

60°Current weather

Vandalia, Friday, 30 October, 23:50

Overcast. Feels like 58°. High 73°, low 55°.

Pressure30.27 inHg
Wind1 mph NE
Humidity50%
Visibility6.2 mi
Dew point42°
Sat, 3170° / 60°0Overcast
70 °Overcast

Vandalia, Saturday, 31 October

Overcast. High 70°, low 60°.

Pressure30.30 inHg
Wind5.1 mph E
Humidity48%
Visibility6.2 mi
Dew point44°
Sun, 0168° / 56°0.02Light rain
68 °Light rain

Vandalia, Sunday, 1 November

Light rain. High 68°, low 56°.

Pressure30.30 inHg
Wind9.6 mph SE
Humidity61%
Visibility6.2 mi
Dew point52°
Mon, 0266° / 56°0.01Light rain
66 °Light rain

Vandalia, Monday, 2 November

Light rain. High 66°, low 56°.

Pressure30.12 inHg
Wind9 mph SE
Humidity78%
Visibility6.2 mi
Dew point54°
Tue, 0370° / 63°0.01Light rain
70 °Light rain

Vandalia, Tuesday, 3 November

Light rain. High 70°, low 63°.

Pressure29.94 inHg
Wind14.7 mph S
Humidity71%
Visibility6.2 mi
Dew point59°
Wed, 0467° / 64°0.58Rain
67 °Rain

Vandalia, Wednesday, 4 November

Rain. High 67°, low 64°.

Pressure29.77 inHg
Wind12.6 mph SE
Humidity96%
Visibility—
Dew point64°
Thu, 0568° / 53°0.1Light rain
68 °Light rain

Vandalia, Thursday, 5 November

Light rain. High 68°, low 53°.

Pressure29.68 inHg
Wind7.5 mph SE
Humidity60%
Visibility—
Dew point53°
Fri, 0663° / 47°0Clear
63 °Clear

Vandalia, Friday, 6 November

Clear. High 63°, low 47°.

Pressure30.00 inHg
Wind7.2 mph N
Humidity53%
Visibility—
Dew point43°
Sat, 0762° / 47°0Overcast
62 °Overcast

Vandalia, Saturday, 7 November

Overcast. High 62°, low 47°.

Pressure30.09 inHg
Wind5.2 mph NE
Humidity52%
Visibility—
Dew point42°
Sun, 0865° / 48°0Overcast
65 °Overcast

Vandalia, Sunday, 8 November

Overcast. High 65°, low 48°.

Pressure30.09 inHg
Wind5.7 mph E
Humidity51%
Visibility—
Dew point43°
Mon, 0966° / 50°0Overcast
66 °Overcast

Vandalia, Monday, 9 November

Overcast. High 66°, low 50°.

Pressure30.12 inHg
Wind6.6 mph NE
Humidity46%
Visibility—
Dew point41°
Tue, 1067° / 49°0Clear
67 °Clear

Vandalia, Tuesday, 10 November

Clear. High 67°, low 49°.

Pressure30.03 inHg
Wind6.5 mph W
Humidity48%
Visibility—
Dew point43°
Wed, 1169° / 49°0Clear
69 °Clear

Vandalia, Wednesday, 11 November

Clear. High 69°, low 49°.

Pressure29.83 inHg
Wind12.2 mph W
Humidity42%
Visibility—
Dew point42°
Thu, 1266° / 46°0Clear
66 °Clear

Vandalia, Thursday, 12 November

Clear. High 66°, low 46°.

Pressure29.83 inHg
Wind14.9 mph NW
Humidity43%
Visibility—
Dew point39°
Fri, 1351° / 41°0Clear
51 °Clear

Vandalia, Friday, 13 November

Clear. High 51°, low 41°.

Pressure30.00 inHg
Wind19.2 mph NW
Humidity32%
Visibility—
Dew point21°
Sat, 1451° / 33°0Clear
51 °Clear

Vandalia, Saturday, 14 November

Clear. High 51°, low 33°.

Pressure30.12 inHg
Wind11.4 mph NW
Humidity42%
Visibility—
Dew point25°

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 Vandalia, 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 Vandalia, 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.