As of 15:26 CDT

Weather in St. Augustine, IL

82°

St. Augustine, Saturday, 10 October, 15:26

Overcast. Feels like 83°. High 82°, low 58°.

Pressure30.00 inHg

Wind11.4 mph S

Humidity51%

Visibility6.2 mi

Dew point61°

See detailed hourly forecast

Sun, 1184° / 52°

84 °

St. Augustine, Sunday, 11 October

Clear. High 84°, low 52°.

Pressure29.97 inHg

Wind7.1 mph S

Humidity57%

Visibility6.2 mi

Dew point57°

Mon, 1285° / 61°

85 °

St. Augustine, Monday, 12 October

Clear. High 85°, low 61°.

Pressure29.85 inHg

Wind12.1 mph SW

Humidity57%

Visibility6.2 mi

Dew point64°

Tue, 1382° / 71°

82 °

St. Augustine, Tuesday, 13 October

Clear. High 82°, low 71°.

Pressure29.85 inHg

Wind6.7 mph W

Humidity64%

Visibility6.2 mi

Dew point66°

Wed, 1473° / 64°

1.17

73 °

St. Augustine, Wednesday, 14 October

Heavy rain. High 73°, low 64°.

Pressure30.06 inHg

Wind7.3 mph NE

Humidity70%

Visibility6.2 mi

Dew point61°

Thu, 1562° / 56°

1.74

62 °

St. Augustine, Thursday, 15 October

Heavy rain. High 62°, low 56°.

Pressure30.18 inHg

Wind13.7 mph E

Humidity97%

Visibility—

Dew point56°

Fri, 1656° / 39°

56 °

St. Augustine, Friday, 16 October

Partly cloudy. High 56°, low 39°.

Pressure30.15 inHg

Wind21.5 mph W

Humidity48%

Visibility—

Dew point35°

Sat, 1739° / 32°

39 °

St. Augustine, Saturday, 17 October

Light snow. High 39°, low 32°.

Pressure30.33 inHg

Wind19.5 mph NW

Humidity54%

Visibility—

Dew point22°

Sun, 1845° / 26°

45 °

St. Augustine, Sunday, 18 October

Clear. High 45°, low 26°.

Pressure30.62 inHg

Wind12.3 mph NW

Humidity33%

Visibility—

Dew point14°

Mon, 1953° / 31°

53 °

St. Augustine, Monday, 19 October

Overcast. High 53°, low 31°.

Pressure30.59 inHg

Wind13.2 mph S

Humidity29%

Visibility—

Dew point16°

Tue, 2063° / 37°

63 °

St. Augustine, Tuesday, 20 October

Clear. High 63°, low 37°.

Pressure30.36 inHg

Wind13.2 mph S

Humidity32%

Visibility—

Dew point27°

Wed, 2159° / 43°

0.19

59 °

St. Augustine, Wednesday, 21 October

Light rain. High 59°, low 43°.

Pressure29.97 inHg

Wind16 mph S

Humidity92%

Visibility—

Dew point47°

Thu, 2268° / 43°

68 °

St. Augustine, Thursday, 22 October

Clear. High 68°, low 43°.

Pressure30.12 inHg

Wind14.2 mph SW

Humidity41%

Visibility—

Dew point38°

Fri, 2360° / 44°

60 °

St. Augustine, Friday, 23 October

Clear. High 60°, low 44°.

Pressure30.21 inHg

Wind8.9 mph N

Humidity41%

Visibility—

Dew point33°

Sat, 2460° / 49°

0.12

60 °

St. Augustine, Saturday, 24 October

Light rain. High 60°, low 49°.

Pressure30.18 inHg

Wind8.9 mph SE

Humidity46%

Visibility—

Dew point35°

Sun, 2560° / 39°

0.24

60 °

St. Augustine, Sunday, 25 October

Light rain. High 60°, low 39°.

Pressure29.83 inHg

Wind19.1 mph NW

Humidity78%

Visibility—

Dew point49°

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 St. Augustine, 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 St. Augustine, 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.