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As of 07:30 CST

Weather in Vandalia, IL

38°Current weather

Vandalia, Friday, 13 November, 07:30

Overcast. Feels like 31°. High 44°, low 36°.

Pressure30.09 inHg
Wind10.5 mph NW
Humidity76%
Visibility6.2 mi
Dew point31°
Sat, 1447° / 31°0Clear
47 °Clear

Vandalia, Saturday, 14 November

Clear. High 47°, low 31°.

Pressure30.33 inHg
Wind4.4 mph NW
Humidity56%
Visibility6.2 mi
Dew point26°
Sun, 1550° / 30°0Partly cloudy
50 °Partly cloudy

Vandalia, Sunday, 15 November

Partly cloudy. High 50°, low 30°.

Pressure30.47 inHg
Wind0.8 mph N
Humidity51%
Visibility6.2 mi
Dew point28°
Mon, 1653° / 32°0Clear
53 °Clear

Vandalia, Monday, 16 November

Clear. High 53°, low 32°.

Pressure30.53 inHg
Wind2.5 mph S
Humidity50%
Visibility6.2 mi
Dew point34°
Tue, 1753° / 33°0Mostly clear
53 °Mostly clear

Vandalia, Tuesday, 17 November

Mostly clear. High 53°, low 33°.

Pressure30.50 inHg
Wind6 mph SE
Humidity50%
Visibility—
Dew point32°
Wed, 1859° / 37°0Clear
59 °Clear

Vandalia, Wednesday, 18 November

Clear. High 59°, low 37°.

Pressure30.36 inHg
Wind9.6 mph S
Humidity49%
Visibility—
Dew point36°
Thu, 1959° / 47°0.02Light rain
59 °Light rain

Vandalia, Thursday, 19 November

Light rain. High 59°, low 47°.

Pressure30.24 inHg
Wind11.7 mph S
Humidity62%
Visibility—
Dew point44°
Fri, 2063° / 53°0Overcast
63 °Overcast

Vandalia, Friday, 20 November

Overcast. High 63°, low 53°.

Pressure30.33 inHg
Wind8.3 mph SE
Humidity62%
Visibility—
Dew point49°
Sat, 2169° / 51°0Light rain
69 °Light rain

Vandalia, Saturday, 21 November

Light rain. High 69°, low 51°.

Pressure29.88 inHg
Wind24.6 mph S
Humidity33%
Visibility—
Dew point37°
Sun, 2259° / 41°0.11Light rain
59 °Light rain

Vandalia, Sunday, 22 November

Light rain. High 59°, low 41°.

Pressure30.09 inHg
Wind15.9 mph SW
Humidity48%
Visibility—
Dew point32°
Mon, 2347° / 32°0Clear
47 °Clear

Vandalia, Monday, 23 November

Clear. High 47°, low 32°.

Pressure30.18 inHg
Wind15.7 mph N
Humidity40%
Visibility—
Dew point22°
Tue, 2436° / 23°0.02Light snow
36 °Light snow

Vandalia, Tuesday, 24 November

Light snow. High 36°, low 23°.

Pressure30.33 inHg
Wind18.3 mph NW
Humidity33%
Visibility—
Dew point1°
Wed, 2536° / 23°0Clear
36 °Clear

Vandalia, Wednesday, 25 November

Clear. High 36°, low 23°.

Pressure30.56 inHg
Wind14.8 mph N
Humidity25%
Visibility—
Dew point1°
Thu, 2639° / 23°0Overcast
39 °Overcast

Vandalia, Thursday, 26 November

Overcast. High 39°, low 23°.

Pressure30.53 inHg
Wind7.3 mph N
Humidity39%
Visibility—
Dew point13°
Fri, 2744° / 25°0Mostly clear
44 °Mostly clear

Vandalia, Friday, 27 November

Mostly clear. High 44°, low 25°.

Pressure30.33 inHg
Wind7.3 mph S
Humidity30%
Visibility—
Dew point10°
Sat, 2846° / 31°0Overcast
46 °Overcast

Vandalia, Saturday, 28 November

Overcast. High 46°, low 31°.

Pressure30.27 inHg
Wind10.4 mph S
Humidity36%
Visibility—
Dew point18°

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.