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As of 05:23 CDT

Weather in Vandalia, IL

60°Current weather

Vandalia, Saturday, 31 October, 05:23

Overcast. Feels like 57°. High 70°, low 59°.

Pressure30.27 inHg
Wind5.4 mph E
Humidity44%
Visibility6.2 mi
Dew point39°
Sun, 0169° / 57°0.07Light rain
69 °Light rain

Vandalia, Sunday, 1 November

Light rain. High 69°, low 57°.

Pressure30.30 inHg
Wind7 mph SE
Humidity74%
Visibility6.2 mi
Dew point54°
Mon, 0267° / 56°0.02Light rain
67 °Light rain

Vandalia, Monday, 2 November

Light rain. High 67°, low 56°.

Pressure30.09 inHg
Wind11.6 mph SE
Humidity77%
Visibility6.2 mi
Dew point56°
Tue, 0371° / 62°0.02Light rain
71 °Light rain

Vandalia, Tuesday, 3 November

Light rain. High 71°, low 62°.

Pressure29.97 inHg
Wind18.6 mph S
Humidity68%
Visibility6.2 mi
Dew point60°
Wed, 0468° / 63°1.25Heavy rain
68 °Heavy rain

Vandalia, Wednesday, 4 November

Heavy rain. High 68°, low 63°.

Pressure29.77 inHg
Wind10.6 mph S
Humidity92%
Visibility—
Dew point64°
Thu, 0566° / 56°0.46Rain
66 °Rain

Vandalia, Thursday, 5 November

Rain. High 66°, low 56°.

Pressure29.59 inHg
Wind7.6 mph SE
Humidity89%
Visibility—
Dew point62°
Fri, 0669° / 49°0Clear
69 °Clear

Vandalia, Friday, 6 November

Clear. High 69°, low 49°.

Pressure29.94 inHg
Wind7.8 mph NE
Humidity59%
Visibility—
Dew point50°
Sat, 0769° / 62°0.08Light rain
69 °Light rain

Vandalia, Saturday, 7 November

Light rain. High 69°, low 62°.

Pressure29.94 inHg
Wind6.9 mph SE
Humidity85%
Visibility—
Dew point60°
Sun, 0864° / 60°1.24Heavy rain
64 °Heavy rain

Vandalia, Sunday, 8 November

Heavy rain. High 64°, low 60°.

Pressure29.94 inHg
Wind10.2 mph E
Humidity93%
Visibility—
Dew point61°
Mon, 0966° / 56°0.9Heavy rain
66 °Heavy rain

Vandalia, Monday, 9 November

Heavy rain. High 66°, low 56°.

Pressure29.88 inHg
Wind9 mph SE
Humidity75%
Visibility—
Dew point57°
Tue, 1065° / 53°0.01Light rain
65 °Light rain

Vandalia, Tuesday, 10 November

Light rain. High 65°, low 53°.

Pressure29.88 inHg
Wind11.3 mph NW
Humidity69%
Visibility—
Dew point53°
Wed, 1160° / 44°0Clear
60 °Clear

Vandalia, Wednesday, 11 November

Clear. High 60°, low 44°.

Pressure30.12 inHg
Wind10.9 mph NW
Humidity38%
Visibility—
Dew point31°
Thu, 1262° / 45°0Overcast
62 °Overcast

Vandalia, Thursday, 12 November

Overcast. High 62°, low 45°.

Pressure30.00 inHg
Wind6.8 mph SE
Humidity45%
Visibility—
Dew point37°
Fri, 1366° / 50°0Overcast
66 °Overcast

Vandalia, Friday, 13 November

Overcast. High 66°, low 50°.

Pressure29.94 inHg
Wind12.8 mph S
Humidity57%
Visibility—
Dew point47°
Sat, 1461° / 46°0Clear
61 °Clear

Vandalia, Saturday, 14 November

Clear. High 61°, low 46°.

Pressure30.12 inHg
Wind11.1 mph NW
Humidity54%
Visibility—
Dew point40°
Sun, 1568° / 48°0Overcast
68 °Overcast

Vandalia, Sunday, 15 November

Overcast. High 68°, low 48°.

Pressure30.09 inHg
Wind13.9 mph SW
Humidity47%
Visibility—
Dew point42°

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.