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As of 20:30 CST

Weather in Vandalia, IL

66°Current weather

Vandalia, Tuesday, 3 November, 20:30

Light rain. Feels like 67°. High 71°, low 65°.

Pressure29.80 inHg
Wind6 mph S
Humidity91%
Visibility2.0 mi
Dew point64°
Wed, 0464° / 52°0.45Heavy rain
64 °Heavy rain

Vandalia, Wednesday, 4 November

Heavy rain. High 64°, low 52°.

Pressure29.80 inHg
Wind12.5 mph W
Humidity65%
Visibility6.2 mi
Dew point48°
Thu, 0563° / 48°0Clear
63 °Clear

Vandalia, Thursday, 5 November

Clear. High 63°, low 48°.

Pressure29.85 inHg
Wind10.1 mph W
Humidity53%
Visibility6.2 mi
Dew point44°
Fri, 0654° / 42°0Overcast
54 °Overcast

Vandalia, Friday, 6 November

Overcast. High 54°, low 42°.

Pressure30.12 inHg
Wind10.7 mph N
Humidity58%
Visibility6.2 mi
Dew point39°
Sat, 0751° / 35°0Overcast
51 °Overcast

Vandalia, Saturday, 7 November

Overcast. High 51°, low 35°.

Pressure30.24 inHg
Wind3.5 mph NW
Humidity49%
Visibility6.2 mi
Dew point32°
Sun, 0862° / 38°0Clear
62 °Clear

Vandalia, Sunday, 8 November

Clear. High 62°, low 38°.

Pressure30.12 inHg
Wind8 mph W
Humidity59%
Visibility—
Dew point42°
Mon, 0963° / 40°0Clear
63 °Clear

Vandalia, Monday, 9 November

Clear. High 63°, low 40°.

Pressure30.18 inHg
Wind7.4 mph SW
Humidity40%
Visibility—
Dew point34°
Tue, 1063° / 42°0Overcast
63 °Overcast

Vandalia, Tuesday, 10 November

Overcast. High 63°, low 42°.

Pressure30.15 inHg
Wind8.3 mph W
Humidity34%
Visibility—
Dew point31°
Wed, 1161° / 46°0Overcast
61 °Overcast

Vandalia, Wednesday, 11 November

Overcast. High 61°, low 46°.

Pressure30.12 inHg
Wind7.2 mph NE
Humidity43%
Visibility—
Dew point36°
Thu, 1259° / 46°0Overcast
59 °Overcast

Vandalia, Thursday, 12 November

Overcast. High 59°, low 46°.

Pressure30.06 inHg
Wind6.7 mph E
Humidity35%
Visibility—
Dew point30°
Fri, 1365° / 44°0Clear
65 °Clear

Vandalia, Friday, 13 November

Clear. High 65°, low 44°.

Pressure29.94 inHg
Wind10 mph W
Humidity47%
Visibility—
Dew point40°
Sat, 1462° / 44°0Clear
62 °Clear

Vandalia, Saturday, 14 November

Clear. High 62°, low 44°.

Pressure30.00 inHg
Wind14.1 mph NE
Humidity56%
Visibility—
Dew point44°
Sun, 1551° / 35°0Clear
51 °Clear

Vandalia, Sunday, 15 November

Clear. High 51°, low 35°.

Pressure30.36 inHg
Wind13.8 mph E
Humidity27%
Visibility—
Dew point15°
Mon, 1654° / 32°0Clear
54 °Clear

Vandalia, Monday, 16 November

Clear. High 54°, low 32°.

Pressure30.39 inHg
Wind8.3 mph SE
Humidity31%
Visibility—
Dew point19°
Tue, 1759° / 35°0Mostly clear
59 °Mostly clear

Vandalia, Tuesday, 17 November

Mostly clear. High 59°, low 35°.

Pressure30.42 inHg
Wind9.1 mph S
Humidity30%
Visibility—
Dew point23°
Wed, 1860° / 42°0Overcast
60 °Overcast

Vandalia, Wednesday, 18 November

Overcast. High 60°, low 42°.

Pressure30.39 inHg
Wind9.7 mph SE
Humidity33%
Visibility—
Dew point26°

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.