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As of 04:22 CST

Weather in Vandalia, IL

48°Current weather

Vandalia, Tuesday, 10 November, 04:22

Clear. Feels like 48°. High 70°, low 48°.

Pressure30.09 inHg
Wind1 mph S
Humidity82%
Visibility6.2 mi
Dew point43°
Wed, 1169° / 45°0Overcast
69 °Overcast

Vandalia, Wednesday, 11 November

Overcast. High 69°, low 45°.

Pressure29.77 inHg
Wind13.9 mph W
Humidity69%
Visibility6.2 mi
Dew point55°
Thu, 1248° / 39°0Light rain
48 °Light rain

Vandalia, Thursday, 12 November

Light rain. High 48°, low 39°.

Pressure29.97 inHg
Wind13 mph N
Humidity57%
Visibility6.2 mi
Dew point33°
Fri, 1342° / 35°0Overcast
42 °Overcast

Vandalia, Friday, 13 November

Overcast. High 42°, low 35°.

Pressure30.09 inHg
Wind12.5 mph NW
Humidity62%
Visibility6.2 mi
Dew point24°
Sat, 1447° / 29°0Clear
47 °Clear

Vandalia, Saturday, 14 November

Clear. High 47°, low 29°.

Pressure30.24 inHg
Wind4.4 mph NW
Humidity56%
Visibility—
Dew point28°
Sun, 1551° / 31°0Partly cloudy
51 °Partly cloudy

Vandalia, Sunday, 15 November

Partly cloudy. High 51°, low 31°.

Pressure30.36 inHg
Wind6.8 mph E
Humidity50%
Visibility—
Dew point29°
Mon, 1654° / 37°0Overcast
54 °Overcast

Vandalia, Monday, 16 November

Overcast. High 54°, low 37°.

Pressure30.39 inHg
Wind10 mph E
Humidity32%
Visibility—
Dew point21°
Tue, 1754° / 43°0Overcast
54 °Overcast

Vandalia, Tuesday, 17 November

Overcast. High 54°, low 43°.

Pressure30.39 inHg
Wind7.5 mph E
Humidity41%
Visibility—
Dew point28°
Wed, 1861° / 46°0Overcast
61 °Overcast

Vandalia, Wednesday, 18 November

Overcast. High 61°, low 46°.

Pressure30.33 inHg
Wind9.1 mph SE
Humidity38%
Visibility—
Dew point31°
Thu, 1964° / 46°0Overcast
64 °Overcast

Vandalia, Thursday, 19 November

Overcast. High 64°, low 46°.

Pressure30.24 inHg
Wind12.3 mph SE
Humidity53%
Visibility—
Dew point40°
Fri, 2059° / 56°0.22Light rain
59 °Light rain

Vandalia, Friday, 20 November

Light rain. High 59°, low 56°.

Pressure30.03 inHg
Wind17.3 mph S
Humidity91%
Visibility—
Dew point53°
Sat, 2160° / 46°0.4Rain
60 °Rain

Vandalia, Saturday, 21 November

Rain. High 60°, low 46°.

Pressure29.85 inHg
Wind18.1 mph W
Humidity61%
Visibility—
Dew point42°
Sun, 2248° / 42°0Overcast
48 °Overcast

Vandalia, Sunday, 22 November

Overcast. High 48°, low 42°.

Pressure30.09 inHg
Wind10.3 mph NW
Humidity47%
Visibility—
Dew point28°
Mon, 2341° / 33°0.28Snow
41 °Snow

Vandalia, Monday, 23 November

Snow. High 41°, low 33°.

Pressure29.85 inHg
Wind13.6 mph N
Humidity96%
Visibility—
Dew point35°
Tue, 2442° / 32°0.01Light snow
42 °Light snow

Vandalia, Tuesday, 24 November

Light snow. High 42°, low 32°.

Pressure29.83 inHg
Wind17.4 mph W
Humidity51%
Visibility—
Dew point24°
Wed, 2534° / 23°0Clear
34 °Clear

Vandalia, Wednesday, 25 November

Clear. High 34°, low 23°.

Pressure30.36 inHg
Wind15 mph NW
Humidity42%
Visibility—
Dew point11°

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.