As of 13:57 CDT

Weather in Aviston, IL

78°

Aviston, Saturday, 10 October, 13:57

Overcast. Feels like 77°. High 78°, low 56°.

Pressure30.03 inHg

Wind3 mph SE

Humidity43%

Visibility6.2 mi

Dew point53°

See detailed hourly forecast

Sun, 1186° / 49°

86 °

Aviston, Sunday, 11 October

Clear. High 86°, low 49°.

Pressure30.00 inHg

Wind1.5 mph W

Humidity51%

Visibility6.2 mi

Dew point55°

Mon, 1291° / 61°

91 °

Aviston, Monday, 12 October

Clear. High 91°, low 61°.

Pressure29.94 inHg

Wind9.8 mph SW

Humidity41%

Visibility6.2 mi

Dew point59°

Tue, 1391° / 70°

91 °

Aviston, Tuesday, 13 October

Clear. High 91°, low 70°.

Pressure29.91 inHg

Wind9.1 mph W

Humidity49%

Visibility6.2 mi

Dew point65°

Wed, 1479° / 69°

0.39

79 °

Aviston, Wednesday, 14 October

Rain. High 79°, low 69°.

Pressure30.03 inHg

Wind0.9 mph SW

Humidity92%

Visibility2.6 mi

Dew point70°

Thu, 1568° / 61°

1.2

68 °

Aviston, Thursday, 15 October

Rain. High 68°, low 61°.

Pressure30.15 inHg

Wind11.7 mph NE

Humidity84%

Visibility—

Dew point60°

Fri, 1666° / 48°

0.19

66 °

Aviston, Friday, 16 October

Rain. High 66°, low 48°.

Pressure30.06 inHg

Wind23.8 mph NW

Humidity32%

Visibility—

Dew point30°

Sat, 1745° / 36°

45 °

Aviston, Saturday, 17 October

Overcast. High 45°, low 36°.

Pressure30.36 inHg

Wind20.5 mph NW

Humidity39%

Visibility—

Dew point19°

Sun, 1851° / 30°

51 °

Aviston, Sunday, 18 October

Clear. High 51°, low 30°.

Pressure30.53 inHg

Wind7.7 mph NW

Humidity30%

Visibility—

Dew point17°

Mon, 1960° / 35°

60 °

Aviston, Monday, 19 October

Mostly clear. High 60°, low 35°.

Pressure30.42 inHg

Wind12 mph S

Humidity32%

Visibility—

Dew point25°

Tue, 2065° / 41°

65 °

Aviston, Tuesday, 20 October

Overcast. High 65°, low 41°.

Pressure30.30 inHg

Wind14.7 mph S

Humidity32%

Visibility—

Dew point31°

Wed, 2156° / 49°

0.29

56 °

Aviston, Wednesday, 21 October

Rain. High 56°, low 49°.

Pressure30.09 inHg

Wind15.1 mph S

Humidity92%

Visibility—

Dew point51°

Thu, 2269° / 46°

69 °

Aviston, Thursday, 22 October

Clear. High 69°, low 46°.

Pressure30.21 inHg

Wind7.8 mph S

Humidity40%

Visibility—

Dew point38°

Fri, 2370° / 49°

70 °

Aviston, Friday, 23 October

Clear. High 70°, low 49°.

Pressure30.18 inHg

Wind7.8 mph SW

Humidity30%

Visibility—

Dew point33°

Sat, 2470° / 49°

70 °

Aviston, Saturday, 24 October

Overcast. High 70°, low 49°.

Pressure30.15 inHg

Wind7.7 mph S

Humidity32%

Visibility—

Dew point35°

Sun, 2568° / 54°

0.15

68 °

Aviston, Sunday, 25 October

Light rain. High 68°, low 54°.

Pressure29.83 inHg

Wind18.1 mph NW

Humidity70%

Visibility—

Dew point57°

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 Aviston, 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 Aviston, 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.