As of 05:49 CDT

Weather in St. David, IL

37°

St. David, Saturday, 17 October, 05:49

Clear. Feels like 33°. High 56°, low 37°.

Pressure30.53 inHg

Wind4.6 mph N

Humidity99%

Visibility6.2 mi

Dew point36°

See detailed hourly forecast

Sun, 1862° / 41°

62 °

St. David, Sunday, 18 October

Clear. High 62°, low 41°.

Pressure30.45 inHg

Wind10.7 mph S

Humidity53%

Visibility6.2 mi

Dew point41°

Mon, 1965° / 43°

65 °

St. David, Monday, 19 October

Overcast. High 65°, low 43°.

Pressure30.39 inHg

Wind4.9 mph S

Humidity55%

Visibility6.2 mi

Dew point45°

Tue, 2067° / 46°

67 °

St. David, Tuesday, 20 October

Partly cloudy. High 67°, low 46°.

Pressure30.36 inHg

Wind5.1 mph SE

Humidity54%

Visibility6.2 mi

Dew point48°

Wed, 2169° / 48°

0.01

69 °

St. David, Wednesday, 21 October

Light rain. High 69°, low 48°.

Pressure30.27 inHg

Wind5.7 mph S

Humidity48%

Visibility—

Dew point45°

Thu, 2271° / 51°

71 °

St. David, Thursday, 22 October

Clear. High 71°, low 51°.

Pressure30.21 inHg

Wind5.8 mph SE

Humidity49%

Visibility—

Dew point47°

Fri, 2375° / 55°

75 °

St. David, Friday, 23 October

Overcast. High 75°, low 55°.

Pressure30.15 inHg

Wind10.5 mph SE

Humidity30%

Visibility—

Dew point38°

Sat, 2474° / 58°

74 °

St. David, Saturday, 24 October

Overcast. High 74°, low 58°.

Pressure30.15 inHg

Wind13.2 mph S

Humidity32%

Visibility—

Dew point40°

Sun, 2577° / 58°

0.15

77 °

St. David, Sunday, 25 October

Rain. High 77°, low 58°.

Pressure30.00 inHg

Wind16.6 mph W

Humidity31%

Visibility—

Dew point41°

Mon, 2654° / 41°

0.78

54 °

St. David, Monday, 26 October

Rain. High 54°, low 41°.

Pressure30.18 inHg

Wind14.5 mph NW

Humidity64%

Visibility—

Dew point37°

Tue, 2754° / 37°

54 °

St. David, Tuesday, 27 October

Overcast. High 54°, low 37°.

Pressure30.42 inHg

Wind8.3 mph SE

Humidity46%

Visibility—

Dew point29°

Wed, 2859° / 48°

0.41

59 °

St. David, Wednesday, 28 October

Rain. High 59°, low 48°.

Pressure30.06 inHg

Wind19.8 mph SW

Humidity75%

Visibility—

Dew point40°

Thu, 2962° / 50°

62 °

St. David, Thursday, 29 October

Light rain. High 62°, low 50°.

Pressure30.06 inHg

Wind22.6 mph SW

Humidity52%

Visibility—

Dew point42°

Fri, 3067° / 48°

0.02

67 °

St. David, Friday, 30 October

Light rain. High 67°, low 48°.

Pressure30.03 inHg

Wind14.7 mph SE

Humidity41%

Visibility—

Dew point38°

Sat, 3169° / 60°

0.39

69 °

St. David, Saturday, 31 October

Rain. High 69°, low 60°.

Pressure29.59 inHg

Wind21.8 mph S

Humidity81%

Visibility—

Dew point61°

Sun, 0164° / 46°

64 °

St. David, Sunday, 1 November

Light rain. High 64°, low 46°.

Pressure30.00 inHg

Wind14.7 mph SW

Humidity57%

Visibility—

Dew point38°

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.