As of 10:30 CDT

Weather in Aviston, IL

67°

Aviston, Sunday, 11 October, 10:30

Clear. Feels like 67°. High 84°, low 53°.

Pressure30.03 inHg

Wind1.8 mph S

Humidity72%

Visibility6.2 mi

Dew point58°

See detailed hourly forecast

Mon, 1291° / 59°

91 °

Aviston, Monday, 12 October

Clear. High 91°, low 59°.

Pressure29.94 inHg

Wind10.6 mph SW

Humidity43%

Visibility6.2 mi

Dew point60°

Tue, 1391° / 69°

91 °

Aviston, Tuesday, 13 October

Clear. High 91°, low 69°.

Pressure29.91 inHg

Wind9 mph SW

Humidity48%

Visibility6.2 mi

Dew point65°

Wed, 1478° / 73°

0.44

78 °

Aviston, Wednesday, 14 October

Rain. High 78°, low 73°.

Pressure30.03 inHg

Wind5.3 mph SW

Humidity92%

Visibility2.0 mi

Dew point72°

Thu, 1583° / 71°

0.28

83 °

Aviston, Thursday, 15 October

Light rain. High 83°, low 71°.

Pressure30.03 inHg

Wind11.3 mph W

Humidity72%

Visibility—

Dew point70°

Fri, 1672° / 54°

0.05

72 °

Aviston, Friday, 16 October

Light rain. High 72°, low 54°.

Pressure30.33 inHg

Wind18 mph N

Humidity45%

Visibility—

Dew point41°

Sat, 1749° / 37°

49 °

Aviston, Saturday, 17 October

Clear. High 49°, low 37°.

Pressure30.56 inHg

Wind14 mph N

Humidity22%

Visibility—

Dew point9°

Sun, 1856° / 32°

56 °

Aviston, Sunday, 18 October

Clear. High 56°, low 32°.

Pressure30.56 inHg

Wind13.3 mph S

Humidity23%

Visibility—

Dew point14°

Mon, 1967° / 37°

67 °

Aviston, Monday, 19 October

Clear. High 67°, low 37°.

Pressure30.42 inHg

Wind12 mph SW

Humidity20%

Visibility—

Dew point19°

Tue, 2067° / 44°

67 °

Aviston, Tuesday, 20 October

Overcast. High 67°, low 44°.

Pressure30.33 inHg

Wind9.9 mph S

Humidity25%

Visibility—

Dew point26°

Wed, 2172° / 50°

72 °

Aviston, Wednesday, 21 October

Overcast. High 72°, low 50°.

Pressure30.24 inHg

Wind10.1 mph S

Humidity26%

Visibility—

Dew point31°

Thu, 2276° / 52°

76 °

Aviston, Thursday, 22 October

Mostly clear. High 76°, low 52°.

Pressure30.24 inHg

Wind6.7 mph S

Humidity26%

Visibility—

Dew point34°

Fri, 2378° / 56°

78 °

Aviston, Friday, 23 October

Partly cloudy. High 78°, low 56°.

Pressure30.18 inHg

Wind7.1 mph SW

Humidity30%

Visibility—

Dew point40°

Sat, 2480° / 59°

80 °

Aviston, Saturday, 24 October

Clear. High 80°, low 59°.

Pressure30.12 inHg

Wind6.6 mph SW

Humidity44%

Visibility—

Dew point52°

Sun, 2582° / 64°

0.15

82 °

Aviston, Sunday, 25 October

Light rain. High 82°, low 64°.

Pressure29.97 inHg

Wind16.3 mph NW

Humidity52%

Visibility—

Dew point58°

Mon, 2661° / 46°

61 °

Aviston, Monday, 26 October

Light rain. High 61°, low 46°.

Pressure29.97 inHg

Wind16.1 mph NW

Humidity44%

Visibility—

Dew point33°

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.