As of 09:42 CDT

Weather in Smithfield, IL

67°

Smithfield, Thursday, 8 October, 09:42

Mostly clear. Feels like 66°. High 78°, low 51°.

Pressure30.09 inHg

Wind0.7 mph SW

Humidity68%

Visibility6.2 mi

Dew point56°

See detailed hourly forecast

Fri, 0983° / 52°

83 °

Smithfield, Friday, 9 October

Clear. High 83°, low 52°.

Pressure30.06 inHg

Wind9.5 mph S

Humidity49%

Visibility6.2 mi

Dew point54°

Sat, 1079° / 60°

79 °

Smithfield, Saturday, 10 October

Overcast. High 79°, low 60°.

Pressure30.06 inHg

Wind6.3 mph SE

Humidity54%

Visibility6.2 mi

Dew point57°

Sun, 1177° / 57°

77 °

Smithfield, Sunday, 11 October

Clear. High 77°, low 57°.

Pressure29.94 inHg

Wind1.9 mph N

Humidity59%

Visibility6.2 mi

Dew point57°

Mon, 1287° / 61°

87 °

Smithfield, Monday, 12 October

Partly cloudy. High 87°, low 61°.

Pressure29.83 inHg

Wind10.1 mph SW

Humidity44%

Visibility—

Dew point58°

Tue, 1383° / 66°

0.05

83 °

Smithfield, Tuesday, 13 October

Light rain. High 83°, low 66°.

Pressure29.85 inHg

Wind9 mph NE

Humidity58%

Visibility—

Dew point65°

Wed, 1479° / 58°

0.15

79 °

Smithfield, Wednesday, 14 October

Light rain. High 79°, low 58°.

Pressure29.94 inHg

Wind13.8 mph SE

Humidity65%

Visibility—

Dew point54°

Thu, 1590° / 73°

0.38

90 °

Smithfield, Thursday, 15 October

Rain. High 90°, low 73°.

Pressure29.83 inHg

Wind19.7 mph SW

Humidity45%

Visibility—

Dew point64°

Fri, 1671° / 52°

0.56

71 °

Smithfield, Friday, 16 October

Heavy rain. High 71°, low 52°.

Pressure30.27 inHg

Wind14 mph N

Humidity63%

Visibility—

Dew point48°

Sat, 1757° / 44°

57 °

Smithfield, Saturday, 17 October

Partly cloudy. High 57°, low 44°.

Pressure30.62 inHg

Wind13.7 mph NE

Humidity52%

Visibility—

Dew point37°

Sun, 1859° / 42°

59 °

Smithfield, Sunday, 18 October

Overcast. High 59°, low 42°.

Pressure30.45 inHg

Wind9.3 mph SE

Humidity42%

Visibility—

Dew point33°

Mon, 1974° / 50°

0.03

74 °

Smithfield, Monday, 19 October

Light rain. High 74°, low 50°.

Pressure30.15 inHg

Wind14.1 mph S

Humidity54%

Visibility—

Dew point51°

Tue, 2076° / 57°

76 °

Smithfield, Tuesday, 20 October

Partly cloudy. High 76°, low 57°.

Pressure30.12 inHg

Wind9.4 mph W

Humidity51%

Visibility—

Dew point53°

Wed, 2172° / 53°

72 °

Smithfield, Wednesday, 21 October

Clear. High 72°, low 53°.

Pressure30.09 inHg

Wind6.6 mph NW

Humidity33%

Visibility—

Dew point38°

Thu, 2262° / 51°

0.23

62 °

Smithfield, Thursday, 22 October

Rain. High 62°, low 51°.

Pressure29.97 inHg

Wind17.9 mph W

Humidity42%

Visibility—

Dew point38°

Fri, 2361° / 43°

61 °

Smithfield, Friday, 23 October

Clear. High 61°, low 43°.

Pressure30.15 inHg

Wind12.4 mph W

Humidity47%

Visibility—

Dew point36°

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.