As of 05:14 CDT

Weather in Smithfield, IL

51°

Smithfield, Thursday, 8 October, 05:14

Partly cloudy. Feels like 50°. High 79°, low 51°.

Pressure30.03 inHg

Wind2.9 mph W

Humidity88%

Visibility6.2 mi

Dew point47°

See detailed hourly forecast

Fri, 0986° / 53°

0.02

86 °

Smithfield, Friday, 9 October

Light rain. High 86°, low 53°.

Pressure30.06 inHg

Wind8.5 mph S

Humidity46%

Visibility6.2 mi

Dew point53°

Sat, 1081° / 62°

81 °

Smithfield, Saturday, 10 October

Overcast. High 81°, low 62°.

Pressure30.06 inHg

Wind5.7 mph S

Humidity44%

Visibility6.2 mi

Dew point55°

Sun, 1177° / 59°

77 °

Smithfield, Sunday, 11 October

Clear. High 77°, low 59°.

Pressure29.97 inHg

Wind3.2 mph E

Humidity53%

Visibility6.2 mi

Dew point55°

Mon, 1289° / 58°

89 °

Smithfield, Monday, 12 October

Clear. High 89°, low 58°.

Pressure29.83 inHg

Wind10.7 mph S

Humidity40%

Visibility—

Dew point55°

Tue, 1374° / 58°

74 °

Smithfield, Tuesday, 13 October

Overcast. High 74°, low 58°.

Pressure29.91 inHg

Wind10.3 mph NW

Humidity56%

Visibility—

Dew point56°

Wed, 1477° / 50°

77 °

Smithfield, Wednesday, 14 October

Partly cloudy. High 77°, low 50°.

Pressure30.00 inHg

Wind17.9 mph SE

Humidity40%

Visibility—

Dew point43°

Thu, 1593° / 70°

0.1

93 °

Smithfield, Thursday, 15 October

Light rain. High 93°, low 70°.

Pressure29.80 inHg

Wind22.3 mph SW

Humidity42%

Visibility—

Dew point62°

Fri, 1675° / 57°

0.19

75 °

Smithfield, Friday, 16 October

Rain. High 75°, low 57°.

Pressure30.12 inHg

Wind13.8 mph NW

Humidity35%

Visibility—

Dew point40°

Sat, 1760° / 49°

60 °

Smithfield, Saturday, 17 October

Overcast. High 60°, low 49°.

Pressure30.39 inHg

Wind9.6 mph NE

Humidity51%

Visibility—

Dew point40°

Sun, 1869° / 54°

69 °

Smithfield, Sunday, 18 October

Overcast. High 69°, low 54°.

Pressure30.24 inHg

Wind5.8 mph E

Humidity50%

Visibility—

Dew point46°

Mon, 1961° / 56°

1.63

61 °

Smithfield, Monday, 19 October

Rain. High 61°, low 56°.

Pressure30.15 inHg

Wind7.8 mph SE

Humidity97%

Visibility—

Dew point56°

Tue, 2067° / 59°

67 °

Smithfield, Tuesday, 20 October

Overcast. High 67°, low 59°.

Pressure30.12 inHg

Wind7.8 mph NW

Humidity62%

Visibility—

Dew point52°

Wed, 2170° / 53°

70 °

Smithfield, Wednesday, 21 October

Clear. High 70°, low 53°.

Pressure29.97 inHg

Wind5.9 mph SE

Humidity52%

Visibility—

Dew point49°

Thu, 2279° / 53°

0.07

79 °

Smithfield, Thursday, 22 October

Light rain. High 79°, low 53°.

Pressure29.65 inHg

Wind18.9 mph S

Humidity47%

Visibility—

Dew point51°

Fri, 2385° / 63°

0.04

85 °

Smithfield, Friday, 23 October

Light rain. High 85°, low 63°.

Pressure29.80 inHg

Wind12.1 mph S

Humidity54%

Visibility—

Dew point59°

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.