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As of 15:02 CST

Weather in Vandalia, IL

62°Current weather

Vandalia, Monday, 2 November, 15:02

Overcast. Feels like 63°. High 65°, low 56°.

Pressure30.00 inHg
Wind3 mph SW
Humidity94%
Visibility6.2 mi
Dew point61°
Tue, 0369° / 63°0.65Rain
69 °Rain

Vandalia, Tuesday, 3 November

Rain. High 69°, low 63°.

Pressure29.85 inHg
Wind20.9 mph S
Humidity65%
Visibility6.2 mi
Dew point62°
Wed, 0462° / 53°0.16Rain
62 °Rain

Vandalia, Wednesday, 4 November

Rain. High 62°, low 53°.

Pressure29.80 inHg
Wind11.8 mph SW
Humidity64%
Visibility6.2 mi
Dew point49°
Thu, 0567° / 47°0.02Light rain
67 °Light rain

Vandalia, Thursday, 5 November

Light rain. High 67°, low 47°.

Pressure29.83 inHg
Wind10.5 mph SW
Humidity48%
Visibility6.2 mi
Dew point45°
Fri, 0656° / 47°0.02Light rain
56 °Light rain

Vandalia, Friday, 6 November

Light rain. High 56°, low 47°.

Pressure29.91 inHg
Wind7.9 mph NW
Humidity65%
Visibility6.2 mi
Dew point45°
Sat, 0758° / 49°0Overcast
58 °Overcast

Vandalia, Saturday, 7 November

Overcast. High 58°, low 49°.

Pressure30.06 inHg
Wind8.5 mph NW
Humidity64%
Visibility—
Dew point44°
Sun, 0851° / 45°0.01Light rain
51 °Light rain

Vandalia, Sunday, 8 November

Light rain. High 51°, low 45°.

Pressure29.85 inHg
Wind20.1 mph W
Humidity71%
Visibility—
Dew point40°
Mon, 0954° / 38°0Mostly clear
54 °Mostly clear

Vandalia, Monday, 9 November

Mostly clear. High 54°, low 38°.

Pressure30.09 inHg
Wind14 mph NW
Humidity51%
Visibility—
Dew point31°
Tue, 1062° / 40°0Clear
62 °Clear

Vandalia, Tuesday, 10 November

Clear. High 62°, low 40°.

Pressure30.03 inHg
Wind12.8 mph NW
Humidity44%
Visibility—
Dew point36°
Wed, 1159° / 43°0.09Light rain
59 °Light rain

Vandalia, Wednesday, 11 November

Light rain. High 59°, low 43°.

Pressure30.06 inHg
Wind6.4 mph NW
Humidity47%
Visibility—
Dew point35°
Thu, 1255° / 43°0Overcast
55 °Overcast

Vandalia, Thursday, 12 November

Overcast. High 55°, low 43°.

Pressure30.06 inHg
Wind9.7 mph N
Humidity42%
Visibility—
Dew point30°
Fri, 1355° / 37°0Clear
55 °Clear

Vandalia, Friday, 13 November

Clear. High 55°, low 37°.

Pressure30.06 inHg
Wind6.4 mph NE
Humidity37%
Visibility—
Dew point26°
Sat, 1460° / 40°0Overcast
60 °Overcast

Vandalia, Saturday, 14 November

Overcast. High 60°, low 40°.

Pressure30.15 inHg
Wind6.8 mph SW
Humidity28%
Visibility—
Dew point23°
Sun, 1559° / 46°0Overcast
59 °Overcast

Vandalia, Sunday, 15 November

Overcast. High 59°, low 46°.

Pressure30.06 inHg
Wind10.1 mph NE
Humidity30%
Visibility—
Dew point26°
Mon, 1654° / 46°0Overcast
54 °Overcast

Vandalia, Monday, 16 November

Overcast. High 54°, low 46°.

Pressure30.06 inHg
Wind14.7 mph NE
Humidity34%
Visibility—
Dew point26°
Tue, 1761° / 40°0Clear
61 °Clear

Vandalia, Tuesday, 17 November

Clear. High 61°, low 40°.

Pressure30.12 inHg
Wind12.1 mph NE
Humidity38%
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.