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As of 12:22 CDT

Weather in St. David, IL

86°Current weather

St. David, Monday, 12 October, 12:22

Mostly clear. Feels like 89°. High 87°, low 64°.

Pressure29.85 inHg
Wind10.8 mph SW
Humidity56%
Visibility6.2 mi
Dew point68°
Tue, 1385° / 65°0.01Light rain
85 °Light rain

St. David, Tuesday, 13 October

Light rain. High 85°, low 65°.

Pressure29.88 inHg
Wind5.9 mph W
Humidity61%
Visibility6.2 mi
Dew point65°
Wed, 1475° / 65°0.36Heavy rain
75 °Heavy rain

St. David, Wednesday, 14 October

Heavy rain. High 75°, low 65°.

Pressure30.06 inHg
Wind4.3 mph NE
Humidity68%
Visibility6.2 mi
Dew point63°
Thu, 1566° / 61°0.53Rain
66 °Rain

St. David, Thursday, 15 October

Rain. High 66°, low 61°.

Pressure30.03 inHg
Wind4.9 mph NE
Humidity96%
Visibility2.5 mi
Dew point63°
Fri, 1659° / 48°0Partly cloudy
59 °Partly cloudy

St. David, Friday, 16 October

Partly cloudy. High 59°, low 48°.

Pressure30.42 inHg
Wind17.3 mph N
Humidity49%
Visibility6.2 mi
Dew point37°
Sat, 1761° / 41°0Clear
61 °Clear

St. David, Saturday, 17 October

Clear. High 61°, low 41°.

Pressure30.50 inHg
Wind5.7 mph N
Humidity40%
Visibility—
Dew point32°
Sun, 1865° / 40°0Clear
65 °Clear

St. David, Sunday, 18 October

Clear. High 65°, low 40°.

Pressure30.27 inHg
Wind14.5 mph S
Humidity31%
Visibility—
Dew point28°
Mon, 1962° / 49°0.09Light rain
62 °Light rain

St. David, Monday, 19 October

Light rain. High 62°, low 49°.

Pressure30.18 inHg
Wind10.7 mph S
Humidity48%
Visibility—
Dew point41°
Tue, 2074° / 55°0.04Light rain
74 °Light rain

St. David, Tuesday, 20 October

Light rain. High 74°, low 55°.

Pressure30.18 inHg
Wind7.4 mph E
Humidity51%
Visibility—
Dew point49°
Wed, 2178° / 58°0Clear
78 °Clear

St. David, Wednesday, 21 October

Clear. High 78°, low 58°.

Pressure30.24 inHg
Wind10.4 mph SE
Humidity57%
Visibility—
Dew point58°
Thu, 2279° / 63°0Overcast
79 °Overcast

St. David, Thursday, 22 October

Overcast. High 79°, low 63°.

Pressure30.27 inHg
Wind12.8 mph S
Humidity50%
Visibility—
Dew point55°
Fri, 2378° / 68°0Light rain
78 °Light rain

St. David, Friday, 23 October

Light rain. High 78°, low 68°.

Pressure30.21 inHg
Wind12.7 mph S
Humidity49%
Visibility—
Dew point55°
Sat, 2479° / 65°0.71Rain
79 °Rain

St. David, Saturday, 24 October

Rain. High 79°, low 65°.

Pressure29.94 inHg
Wind20.4 mph S
Humidity51%
Visibility—
Dew point58°
Sun, 2564° / 52°0Overcast
64 °Overcast

St. David, Sunday, 25 October

Overcast. High 64°, low 52°.

Pressure30.03 inHg
Wind18.8 mph W
Humidity65%
Visibility—
Dew point44°
Mon, 2658° / 41°0Clear
58 °Clear

St. David, Monday, 26 October

Clear. High 58°, low 41°.

Pressure30.21 inHg
Wind12.9 mph NW
Humidity41%
Visibility—
Dew point31°
Tue, 2764° / 47°0Clear
64 °Clear

St. David, Tuesday, 27 October

Clear. High 64°, low 47°.

Pressure29.85 inHg
Wind18 mph N
Humidity52%
Visibility—
Dew point44°

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. David, 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. David, 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.