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As of 01:23 CST

Weather in Vandalia, IL

35°Current weather

Vandalia, Sunday, 8 November, 01:23

Clear. Feels like 31°. High 63°, low 35°.

Pressure30.18 inHg
Wind4.8 mph SW
Humidity89%
Visibility6.2 mi
Dew point33°
Mon, 0963° / 38°0Clear
63 °Clear

Vandalia, Monday, 9 November

Clear. High 63°, low 38°.

Pressure30.18 inHg
Wind5.8 mph SW
Humidity50%
Visibility6.2 mi
Dew point42°
Tue, 1066° / 47°0Clear
66 °Clear

Vandalia, Tuesday, 10 November

Clear. High 66°, low 47°.

Pressure30.09 inHg
Wind4.8 mph W
Humidity62%
Visibility6.2 mi
Dew point51°
Wed, 1166° / 44°0.03Light rain
66 °Light rain

Vandalia, Wednesday, 11 November

Light rain. High 66°, low 44°.

Pressure29.85 inHg
Wind6.5 mph S
Humidity62%
Visibility6.2 mi
Dew point53°
Thu, 1252° / 43°0Partly cloudy
52 °Partly cloudy

Vandalia, Thursday, 12 November

Partly cloudy. High 52°, low 43°.

Pressure29.88 inHg
Wind17 mph NW
Humidity51%
Visibility—
Dew point34°
Fri, 1345° / 34°0Partly cloudy
45 °Partly cloudy

Vandalia, Friday, 13 November

Partly cloudy. High 45°, low 34°.

Pressure30.09 inHg
Wind13.2 mph NW
Humidity56%
Visibility—
Dew point28°
Sat, 1447° / 30°0Clear
47 °Clear

Vandalia, Saturday, 14 November

Clear. High 47°, low 30°.

Pressure30.09 inHg
Wind12 mph NW
Humidity41%
Visibility—
Dew point20°
Sun, 1559° / 32°0Clear
59 °Clear

Vandalia, Sunday, 15 November

Clear. High 59°, low 32°.

Pressure30.12 inHg
Wind11.6 mph SW
Humidity30%
Visibility—
Dew point21°
Mon, 1666° / 44°0Overcast
66 °Overcast

Vandalia, Monday, 16 November

Overcast. High 66°, low 44°.

Pressure30.09 inHg
Wind9.7 mph S
Humidity42%
Visibility—
Dew point38°
Tue, 1769° / 50°0.06Light rain
69 °Light rain

Vandalia, Tuesday, 17 November

Light rain. High 69°, low 50°.

Pressure30.06 inHg
Wind15 mph S
Humidity52%
Visibility—
Dew point47°
Wed, 1862° / 51°0.81Rain
62 °Rain

Vandalia, Wednesday, 18 November

Rain. High 62°, low 51°.

Pressure29.91 inHg
Wind18.6 mph S
Humidity70%
Visibility—
Dew point52°
Thu, 1963° / 47°0.14Light rain
63 °Light rain

Vandalia, Thursday, 19 November

Light rain. High 63°, low 47°.

Pressure30.00 inHg
Wind14.9 mph S
Humidity83%
Visibility—
Dew point56°
Fri, 2068° / 57°0.07Light rain
68 °Light rain

Vandalia, Friday, 20 November

Light rain. High 68°, low 57°.

Pressure29.85 inHg
Wind19.9 mph SW
Humidity68%
Visibility—
Dew point54°
Sat, 2167° / 51°0Overcast
67 °Overcast

Vandalia, Saturday, 21 November

Overcast. High 67°, low 51°.

Pressure29.85 inHg
Wind14.5 mph NW
Humidity46%
Visibility—
Dew point42°
Sun, 2251° / 42°0Clear
51 °Clear

Vandalia, Sunday, 22 November

Clear. High 51°, low 42°.

Pressure29.88 inHg
Wind16 mph NW
Humidity44%
Visibility—
Dew point29°
Mon, 2349° / 38°0Partly cloudy
49 °Partly cloudy

Vandalia, Monday, 23 November

Partly cloudy. High 49°, low 38°.

Pressure30.03 inHg
Wind13.7 mph NW
Humidity53%
Visibility—
Dew point31°

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.