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As of 21:43 CST

Weather in Vandalia, IL

58°Current weather

Vandalia, Sunday, 1 November, 21:43

Overcast. Feels like 58°. High 64°, low 58°.

Pressure30.21 inHg
Wind2 mph SW
Humidity91%
Visibility6.2 mi
Dew point55°
Mon, 0267° / 57°0.01Light rain
67 °Light rain

Vandalia, Monday, 2 November

Light rain. High 67°, low 57°.

Pressure30.06 inHg
Wind12.9 mph S
Humidity85%
Visibility6.2 mi
Dew point60°
Tue, 0375° / 64°0.57Rain
75 °Rain

Vandalia, Tuesday, 3 November

Rain. High 75°, low 64°.

Pressure29.85 inHg
Wind19.2 mph S
Humidity67%
Visibility6.2 mi
Dew point62°
Wed, 0465° / 55°0.42Heavy rain
65 °Heavy rain

Vandalia, Wednesday, 4 November

Heavy rain. High 65°, low 55°.

Pressure29.83 inHg
Wind10.8 mph SW
Humidity56%
Visibility6.2 mi
Dew point47°
Thu, 0568° / 48°0.01Light rain
68 °Light rain

Vandalia, Thursday, 5 November

Light rain. High 68°, low 48°.

Pressure29.85 inHg
Wind10.3 mph SW
Humidity50%
Visibility6.2 mi
Dew point47°
Fri, 0657° / 46°0.1Light rain
57 °Light rain

Vandalia, Friday, 6 November

Light rain. High 57°, low 46°.

Pressure29.91 inHg
Wind9.3 mph NW
Humidity69%
Visibility—
Dew point44°
Sat, 0759° / 50°0Overcast
59 °Overcast

Vandalia, Saturday, 7 November

Overcast. High 59°, low 50°.

Pressure30.00 inHg
Wind7.6 mph N
Humidity59%
Visibility—
Dew point42°
Sun, 0860° / 45°0Overcast
60 °Overcast

Vandalia, Sunday, 8 November

Overcast. High 60°, low 45°.

Pressure30.15 inHg
Wind5.5 mph NE
Humidity48%
Visibility—
Dew point38°
Mon, 0963° / 45°0Clear
63 °Clear

Vandalia, Monday, 9 November

Clear. High 63°, low 45°.

Pressure30.03 inHg
Wind4.9 mph NW
Humidity47%
Visibility—
Dew point39°
Tue, 1065° / 46°0Clear
65 °Clear

Vandalia, Tuesday, 10 November

Clear. High 65°, low 46°.

Pressure30.06 inHg
Wind9.4 mph W
Humidity45%
Visibility—
Dew point40°
Wed, 1161° / 45°0Mostly clear
61 °Mostly clear

Vandalia, Wednesday, 11 November

Mostly clear. High 61°, low 45°.

Pressure30.15 inHg
Wind8.8 mph N
Humidity41%
Visibility—
Dew point35°
Thu, 1257° / 40°0Mostly clear
57 °Mostly clear

Vandalia, Thursday, 12 November

Mostly clear. High 57°, low 40°.

Pressure30.27 inHg
Wind6.8 mph NE
Humidity45%
Visibility—
Dew point32°
Fri, 1360° / 40°0Clear
60 °Clear

Vandalia, Friday, 13 November

Clear. High 60°, low 40°.

Pressure30.33 inHg
Wind10.2 mph S
Humidity37%
Visibility—
Dew point30°
Sat, 1467° / 43°0Clear
67 °Clear

Vandalia, Saturday, 14 November

Clear. High 67°, low 43°.

Pressure30.24 inHg
Wind15.4 mph SW
Humidity35%
Visibility—
Dew point33°
Sun, 1573° / 52°0Clear
73 °Clear

Vandalia, Sunday, 15 November

Clear. High 73°, low 52°.

Pressure30.15 inHg
Wind14 mph SW
Humidity54%
Visibility—
Dew point51°
Mon, 1673° / 55°0Clear
73 °Clear

Vandalia, Monday, 16 November

Clear. High 73°, low 55°.

Pressure30.15 inHg
Wind11.3 mph S
Humidity54%
Visibility—
Dew point52°

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.