As of 10:05 CDT

Weather in Jacob, IL

74°

Jacob, Friday, 9 October, 10:05

Clear. Feels like 73°. High 86°, low 54°.

Pressure30.15 inHg

Wind5.1 mph SE

Humidity53%

Visibility6.2 mi

Dew point55°

See detailed hourly forecast

Sat, 1075° / 56°

75 °

Jacob, Saturday, 10 October

Overcast. High 75°, low 56°.

Pressure30.03 inHg

Wind3.5 mph NE

Humidity61%

Visibility6.2 mi

Dew point54°

Sun, 1183° / 55°

83 °

Jacob, Sunday, 11 October

Clear. High 83°, low 55°.

Pressure29.97 inHg

Wind4.5 mph W

Humidity55%

Visibility6.2 mi

Dew point58°

Mon, 1289° / 65°

89 °

Jacob, Monday, 12 October

Clear. High 89°, low 65°.

Pressure29.94 inHg

Wind11.3 mph SW

Humidity43%

Visibility6.2 mi

Dew point61°

Tue, 1390° / 69°

90 °

Jacob, Tuesday, 13 October

Clear. High 90°, low 69°.

Pressure29.88 inHg

Wind9.4 mph SW

Humidity50%

Visibility—

Dew point65°

Wed, 1476° / 71°

0.31

76 °

Jacob, Wednesday, 14 October

Rain. High 76°, low 71°.

Pressure29.94 inHg

Wind5.7 mph E

Humidity97%

Visibility—

Dew point73°

Thu, 1582° / 65°

0.06

82 °

Jacob, Thursday, 15 October

Light rain. High 82°, low 65°.

Pressure29.94 inHg

Wind10.9 mph S

Humidity53%

Visibility—

Dew point60°

Fri, 1679° / 52°

0.09

79 °

Jacob, Friday, 16 October

Light rain. High 79°, low 52°.

Pressure30.06 inHg

Wind21.4 mph NW

Humidity27%

Visibility—

Dew point34°

Sat, 1755° / 40°

55 °

Jacob, Saturday, 17 October

Clear. High 55°, low 40°.

Pressure30.42 inHg

Wind18.3 mph NW

Humidity27%

Visibility—

Dew point19°

Sun, 1861° / 34°

61 °

Jacob, Sunday, 18 October

Clear. High 61°, low 34°.

Pressure30.39 inHg

Wind7.8 mph S

Humidity25%

Visibility—

Dew point19°

Mon, 1967° / 42°

67 °

Jacob, Monday, 19 October

Overcast. High 67°, low 42°.

Pressure30.30 inHg

Wind10.6 mph S

Humidity21%

Visibility—

Dew point22°

Tue, 2074° / 46°

74 °

Jacob, Tuesday, 20 October

Clear. High 74°, low 46°.

Pressure30.33 inHg

Wind8.9 mph S

Humidity25%

Visibility—

Dew point31°

Wed, 2176° / 53°

76 °

Jacob, Wednesday, 21 October

Overcast. High 76°, low 53°.

Pressure30.27 inHg

Wind12.3 mph S

Humidity26%

Visibility—

Dew point34°

Thu, 2278° / 51°

0.01

78 °

Jacob, Thursday, 22 October

Light rain. High 78°, low 51°.

Pressure30.06 inHg

Wind15.9 mph S

Humidity37%

Visibility—

Dew point45°

Fri, 2362° / 47°

0.08

62 °

Jacob, Friday, 23 October

Light rain. High 62°, low 47°.

Pressure30.09 inHg

Wind17.1 mph NW

Humidity33%

Visibility—

Dew point31°

Sat, 2454° / 35°

54 °

Jacob, Saturday, 24 October

Clear. High 54°, low 35°.

Pressure30.21 inHg

Wind14.7 mph NW

Humidity33%

Visibility—

Dew point22°

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 Jacob, 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 Jacob, 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.