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As of 09:39 CST

Weather in Vandalia, IL

68°Current weather

Vandalia, Tuesday, 3 November, 09:39

Partly cloudy. Feels like 68°. High 70°, low 63°.

Pressure29.91 inHg
Wind6 mph SW
Humidity79%
Visibility6.2 mi
Dew point61°
Wed, 0463° / 54°0.25Heavy rain
63 °Heavy rain

Vandalia, Wednesday, 4 November

Heavy rain. High 63°, low 54°.

Pressure29.77 inHg
Wind13.3 mph SW
Humidity64%
Visibility6.2 mi
Dew point50°
Thu, 0563° / 48°0Clear
63 °Clear

Vandalia, Thursday, 5 November

Clear. High 63°, low 48°.

Pressure29.88 inHg
Wind10.1 mph W
Humidity53%
Visibility6.2 mi
Dew point44°
Fri, 0655° / 50°0.01Light rain
55 °Light rain

Vandalia, Friday, 6 November

Light rain. High 55°, low 50°.

Pressure30.06 inHg
Wind11.6 mph N
Humidity72%
Visibility6.2 mi
Dew point46°
Sat, 0753° / 42°0Overcast
53 °Overcast

Vandalia, Saturday, 7 November

Overcast. High 53°, low 42°.

Pressure30.21 inHg
Wind5.5 mph N
Humidity54%
Visibility—
Dew point35°
Sun, 0863° / 38°0Clear
63 °Clear

Vandalia, Sunday, 8 November

Clear. High 63°, low 38°.

Pressure30.15 inHg
Wind7.7 mph SW
Humidity57%
Visibility—
Dew point42°
Mon, 0969° / 47°0Mostly clear
69 °Mostly clear

Vandalia, Monday, 9 November

Mostly clear. High 69°, low 47°.

Pressure30.09 inHg
Wind11.9 mph S
Humidity39%
Visibility—
Dew point39°
Tue, 1069° / 56°0Overcast
69 °Overcast

Vandalia, Tuesday, 10 November

Overcast. High 69°, low 56°.

Pressure30.06 inHg
Wind10.6 mph SW
Humidity41%
Visibility—
Dew point43°
Wed, 1161° / 48°0.01Light rain
61 °Light rain

Vandalia, Wednesday, 11 November

Light rain. High 61°, low 48°.

Pressure30.12 inHg
Wind8.5 mph NE
Humidity37%
Visibility—
Dew point33°
Thu, 1256° / 40°0Clear
56 °Clear

Vandalia, Thursday, 12 November

Clear. High 56°, low 40°.

Pressure30.18 inHg
Wind9.8 mph N
Humidity38%
Visibility—
Dew point28°
Fri, 1354° / 36°0Clear
54 °Clear

Vandalia, Friday, 13 November

Clear. High 54°, low 36°.

Pressure30.24 inHg
Wind7.7 mph NE
Humidity45%
Visibility—
Dew point30°
Sat, 1456° / 36°0Clear
56 °Clear

Vandalia, Saturday, 14 November

Clear. High 56°, low 36°.

Pressure30.24 inHg
Wind5.2 mph E
Humidity33%
Visibility—
Dew point24°
Sun, 1558° / 37°0Clear
58 °Clear

Vandalia, Sunday, 15 November

Clear. High 58°, low 37°.

Pressure30.09 inHg
Wind7.4 mph SE
Humidity31%
Visibility—
Dew point24°
Mon, 1662° / 40°0.04Light rain
62 °Light rain

Vandalia, Monday, 16 November

Light rain. High 62°, low 40°.

Pressure29.80 inHg
Wind15.1 mph S
Humidity44%
Visibility—
Dew point36°
Tue, 1756° / 49°0.05Light rain
56 °Light rain

Vandalia, Tuesday, 17 November

Light rain. High 56°, low 49°.

Pressure29.68 inHg
Wind10.3 mph SE
Humidity78%
Visibility—
Dew point46°
Wed, 1861° / 45°0.02Light rain
61 °Light rain

Vandalia, Wednesday, 18 November

Light rain. High 61°, low 45°.

Pressure29.94 inHg
Wind12.9 mph E
Humidity52%
Visibility—
Dew point41°

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.