As of 12:54 CDT

Weather in St. Augustine, IL

81°

St. Augustine, Saturday, 10 October, 12:54

Overcast. Feels like 82°. High 82°, low 59°.

Pressure30.03 inHg

Wind8.8 mph S

Humidity53%

Visibility6.2 mi

Dew point62°

See detailed hourly forecast

Sun, 1182° / 53°

82 °

St. Augustine, Sunday, 11 October

Clear. High 82°, low 53°.

Pressure29.97 inHg

Wind7 mph S

Humidity55%

Visibility6.2 mi

Dew point57°

Mon, 1286° / 64°

86 °

St. Augustine, Monday, 12 October

Clear. High 86°, low 64°.

Pressure29.85 inHg

Wind11.6 mph SW

Humidity55%

Visibility6.2 mi

Dew point64°

Tue, 1379° / 69°

79 °

St. Augustine, Tuesday, 13 October

Clear. High 79°, low 69°.

Pressure29.88 inHg

Wind7.4 mph W

Humidity66%

Visibility6.2 mi

Dew point64°

Wed, 1472° / 62°

0.08

72 °

St. Augustine, Wednesday, 14 October

Light rain. High 72°, low 62°.

Pressure30.09 inHg

Wind9.1 mph NE

Humidity65%

Visibility6.2 mi

Dew point58°

Thu, 1558° / 56°

0.71

58 °

St. Augustine, Thursday, 15 October

Rain. High 58°, low 56°.

Pressure30.24 inHg

Wind11.4 mph E

Humidity93%

Visibility—

Dew point55°

Fri, 1658° / 39°

58 °

St. Augustine, Friday, 16 October

Partly cloudy. High 58°, low 39°.

Pressure29.97 inHg

Wind24.9 mph W

Humidity45%

Visibility—

Dew point33°

Sat, 1742° / 33°

42 °

St. Augustine, Saturday, 17 October

Overcast. High 42°, low 33°.

Pressure30.39 inHg

Wind22.7 mph NW

Humidity48%

Visibility—

Dew point21°

Sun, 1849° / 28°

49 °

St. Augustine, Sunday, 18 October

Clear. High 49°, low 28°.

Pressure30.53 inHg

Wind7.7 mph S

Humidity36%

Visibility—

Dew point18°

Mon, 1960° / 36°

60 °

St. Augustine, Monday, 19 October

Overcast. High 60°, low 36°.

Pressure30.33 inHg

Wind15.2 mph S

Humidity33%

Visibility—

Dew point25°

Tue, 2064° / 42°

64 °

St. Augustine, Tuesday, 20 October

Overcast. High 64°, low 42°.

Pressure30.21 inHg

Wind16.2 mph S

Humidity30%

Visibility—

Dew point28°

Wed, 2159° / 47°

0.32

59 °

St. Augustine, Wednesday, 21 October

Rain. High 59°, low 47°.

Pressure29.97 inHg

Wind16 mph S

Humidity92%

Visibility—

Dew point48°

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.