As of 23:38 CDT

Weather in Smithfield, IL

66°

Smithfield, Friday, 9 October, 23:38

Clear. Feels like 65°. High 81°, low 56°.

Pressure30.03 inHg

Wind8.7 mph S

Humidity59%

Visibility6.2 mi

Dew point51°

See detailed hourly forecast

Sat, 1081° / 59°

81 °

Smithfield, Saturday, 10 October

Overcast. High 81°, low 59°.

Pressure30.06 inHg

Wind8.2 mph SE

Humidity51%

Visibility6.2 mi

Dew point56°

Sun, 1181° / 52°

81 °

Smithfield, Sunday, 11 October

Clear. High 81°, low 52°.

Pressure29.94 inHg

Wind5.1 mph S

Humidity54%

Visibility6.2 mi

Dew point56°

Mon, 1288° / 66°

88 °

Smithfield, Monday, 12 October

Clear. High 88°, low 66°.

Pressure29.85 inHg

Wind10.3 mph SW

Humidity49%

Visibility6.2 mi

Dew point61°

Tue, 1383° / 72°

0.01

83 °

Smithfield, Tuesday, 13 October

Light rain. High 83°, low 72°.

Pressure29.85 inHg

Wind7.2 mph W

Humidity62%

Visibility6.2 mi

Dew point67°

Wed, 1470° / 65°

0.09

70 °

Smithfield, Wednesday, 14 October

Light rain. High 70°, low 65°.

Pressure30.06 inHg

Wind9.7 mph NE

Humidity74%

Visibility—

Dew point60°

Thu, 1574° / 57°

0.05

74 °

Smithfield, Thursday, 15 October

Light rain. High 74°, low 57°.

Pressure30.24 inHg

Wind16 mph W

Humidity66%

Visibility—

Dew point52°

Fri, 1662° / 48°

62 °

Smithfield, Friday, 16 October

Mostly clear. High 62°, low 48°.

Pressure29.97 inHg

Wind23.5 mph W

Humidity41%

Visibility—

Dew point36°

Sat, 1747° / 36°

47 °

Smithfield, Saturday, 17 October

Light rain. High 47°, low 36°.

Pressure30.39 inHg

Wind21.8 mph W

Humidity45%

Visibility—

Dew point26°

Sun, 1855° / 31°

55 °

Smithfield, Sunday, 18 October

Clear. High 55°, low 31°.

Pressure30.42 inHg

Wind12.7 mph S

Humidity31%

Visibility—

Dew point19°

Mon, 1961° / 39°

61 °

Smithfield, Monday, 19 October

Clear. High 61°, low 39°.

Pressure30.33 inHg

Wind8.6 mph S

Humidity32%

Visibility—

Dew point28°

Tue, 2068° / 46°

68 °

Smithfield, Tuesday, 20 October

Overcast. High 68°, low 46°.

Pressure30.18 inHg

Wind14 mph S

Humidity33%

Visibility—

Dew point33°

Wed, 2163° / 51°

0.75

63 °

Smithfield, Wednesday, 21 October

Rain. High 63°, low 51°.

Pressure29.97 inHg

Wind16.7 mph S

Humidity68%

Visibility—

Dew point51°

Thu, 2261° / 55°

0.41

61 °

Smithfield, Thursday, 22 October

Rain. High 61°, low 55°.

Pressure29.65 inHg

Wind15.5 mph SE

Humidity93%

Visibility—

Dew point55°

Fri, 2367° / 49°

67 °

Smithfield, Friday, 23 October

Partly cloudy. High 67°, low 49°.

Pressure29.94 inHg

Wind11.2 mph NW

Humidity62%

Visibility—

Dew point49°

Sat, 2457° / 45°

57 °

Smithfield, Saturday, 24 October

Overcast. High 57°, low 45°.

Pressure30.03 inHg

Wind16.7 mph NW

Humidity49%

Visibility—

Dew point37°

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 Smithfield, 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 Smithfield, 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.