As of 16:57 CST

Weather in Vandalia, IL

45°

Vandalia, Saturday, 14 November, 16:57

Clear. Feels like 44°. High 47°, low 28°.

Pressure30.30 inHg

Wind3.1 mph NW

Humidity60%

Visibility6.2 mi

Dew point32°

See detailed hourly forecast

Sun, 1551° / 27°

51 °

Vandalia, Sunday, 15 November

Clear. High 51°, low 27°.

Pressure30.45 inHg

Wind0.9 mph NE

Humidity51%

Visibility6.2 mi

Dew point29°

Mon, 1654° / 31°

54 °

Vandalia, Monday, 16 November

Clear. High 54°, low 31°.

Pressure30.53 inHg

Wind2 mph S

Humidity48%

Visibility6.2 mi

Dew point33°

Tue, 1755° / 33°

55 °

Vandalia, Tuesday, 17 November

Clear. High 55°, low 33°.

Pressure30.53 inHg

Wind5.8 mph S

Humidity53%

Visibility6.2 mi

Dew point37°

Wed, 1858° / 38°

58 °

Vandalia, Wednesday, 18 November

Overcast. High 58°, low 38°.

Pressure30.39 inHg

Wind9.6 mph S

Humidity51%

Visibility6.2 mi

Dew point39°

Thu, 1959° / 44°

59 °

Vandalia, Thursday, 19 November

Overcast. High 59°, low 44°.

Pressure30.30 inHg

Wind9.5 mph S

Humidity56%

Visibility—

Dew point40°

Fri, 2068° / 48°

68 °

Vandalia, Friday, 20 November

Overcast. High 68°, low 48°.

Pressure30.24 inHg

Wind10.8 mph S

Humidity63%

Visibility—

Dew point51°

Sat, 2164° / 53°

0.04

64 °

Vandalia, Saturday, 21 November

Light rain. High 64°, low 53°.

Pressure30.00 inHg

Wind17.7 mph S

Humidity59%

Visibility—

Dew point46°

Sun, 2254° / 42°

54 °

Vandalia, Sunday, 22 November

Clear. High 54°, low 42°.

Pressure30.27 inHg

Wind11.6 mph NW

Humidity47%

Visibility—

Dew point33°

Mon, 2350° / 34°

50 °

Vandalia, Monday, 23 November

Clear. High 50°, low 34°.

Pressure30.47 inHg

Wind9.7 mph NE

Humidity34%

Visibility—

Dew point20°

Tue, 2449° / 31°

49 °

Vandalia, Tuesday, 24 November

Overcast. High 49°, low 31°.

Pressure30.45 inHg

Wind13.2 mph SE

Humidity31%

Visibility—

Dew point16°

Wed, 2554° / 41°

54 °

Vandalia, Wednesday, 25 November

Overcast. High 54°, low 41°.

Pressure30.21 inHg

Wind11.9 mph S

Humidity52%

Visibility—

Dew point34°

Thu, 2659° / 43°

59 °

Vandalia, Thursday, 26 November

Overcast. High 59°, low 43°.

Pressure30.27 inHg

Wind17.5 mph E

Humidity57%

Visibility—

Dew point42°

Fri, 2757° / 46°

0.67

57 °

Vandalia, Friday, 27 November

Rain. High 57°, low 46°.

Pressure30.18 inHg

Wind19.2 mph E

Humidity66%

Visibility—

Dew point43°

Sat, 2860° / 54°

0.14

60 °

Vandalia, Saturday, 28 November

Light rain. High 60°, low 54°.

Pressure30.03 inHg

Wind13.2 mph SE

Humidity85%

Visibility—

Dew point53°

Sun, 2967° / 55°

67 °

Vandalia, Sunday, 29 November

Overcast. High 67°, low 55°.

Pressure30.03 inHg

Wind11.1 mph S

Humidity64%

Visibility—

Dew point51°

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.