As of 17:09 CDT

Weather in Sparta, IL

77°

Sparta, Saturday, 10 October, 17:09

Overcast. Feels like 76°. High 77°, low 56°.

Pressure30.00 inHg

Wind11.5 mph E

Humidity36%

Visibility6.2 mi

Dew point50°

See detailed hourly forecast

Sun, 1187° / 50°

87 °

Sparta, Sunday, 11 October

Clear. High 87°, low 50°.

Pressure30.00 inHg

Wind1.8 mph SW

Humidity45%

Visibility6.2 mi

Dew point53°

Mon, 1290° / 60°

90 °

Sparta, Monday, 12 October

Clear. High 90°, low 60°.

Pressure29.94 inHg

Wind10 mph SW

Humidity40%

Visibility6.2 mi

Dew point59°

Tue, 1391° / 68°

91 °

Sparta, Tuesday, 13 October

Clear. High 91°, low 68°.

Pressure29.91 inHg

Wind8.2 mph SW

Humidity47%

Visibility6.2 mi

Dew point64°

Wed, 1479° / 73°

0.2

79 °

Sparta, Wednesday, 14 October

Light rain. High 79°, low 73°.

Pressure30.00 inHg

Wind4.9 mph W

Humidity86%

Visibility3.3 mi

Dew point73°

Thu, 1585° / 70°

0.7

85 °

Sparta, Thursday, 15 October

Rain. High 85°, low 70°.

Pressure30.06 inHg

Wind7.2 mph SE

Humidity76%

Visibility—

Dew point70°

Fri, 1671° / 48°

0.71

71 °

Sparta, Friday, 16 October

Rain. High 71°, low 48°.

Pressure30.15 inHg

Wind17.2 mph NW

Humidity40%

Visibility—

Dew point37°

Sat, 1743° / 36°

43 °

Sparta, Saturday, 17 October

Overcast. High 43°, low 36°.

Pressure30.36 inHg

Wind18 mph NW

Humidity48%

Visibility—

Dew point21°

Sun, 1849° / 30°

49 °

Sparta, Sunday, 18 October

Clear. High 49°, low 30°.

Pressure30.59 inHg

Wind12.8 mph NW

Humidity30%

Visibility—

Dew point15°

Mon, 1956° / 32°

56 °

Sparta, Monday, 19 October

Mostly clear. High 56°, low 32°.

Pressure30.62 inHg

Wind8.9 mph S

Humidity31%

Visibility—

Dew point21°

Tue, 2063° / 37°

63 °

Sparta, Tuesday, 20 October

Clear. High 63°, low 37°.

Pressure30.42 inHg

Wind8.3 mph S

Humidity26%

Visibility—

Dew point22°

Wed, 2168° / 43°

68 °

Sparta, Wednesday, 21 October

Clear. High 68°, low 43°.

Pressure30.33 inHg

Wind10.7 mph S

Humidity25%

Visibility—

Dew point27°

Thu, 2270° / 46°

70 °

Sparta, Thursday, 22 October

Clear. High 70°, low 46°.

Pressure30.30 inHg

Wind12.7 mph S

Humidity25%

Visibility—

Dew point29°

Fri, 2357° / 47°

0.09

57 °

Sparta, Friday, 23 October

Light rain. High 57°, low 47°.

Pressure30.21 inHg

Wind12.2 mph N

Humidity57%

Visibility—

Dew point41°

Sat, 2454° / 45°

0.01

54 °

Sparta, Saturday, 24 October

Light rain. High 54°, low 45°.

Pressure30.15 inHg

Wind11.5 mph N

Humidity58%

Visibility—

Dew point37°

Sun, 2564° / 50°

0.02

64 °

Sparta, Sunday, 25 October

Light rain. High 64°, low 50°.

Pressure30.06 inHg

Wind14.1 mph N

Humidity49%

Visibility—

Dew point42°

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 Sparta, 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 Sparta, 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.