As of 20:35 CDT

Weather in Aviston, IL

67°

Aviston, Sunday, 11 October, 20:35

Clear. Feels like 67°. High 85°, low 53°.

Pressure29.94 inHg

Wind1 mph S

Humidity77%

Visibility6.2 mi

Dew point60°

See detailed hourly forecast

Mon, 1291° / 62°

91 °

Aviston, Monday, 12 October

Clear. High 91°, low 62°.

Pressure29.94 inHg

Wind11 mph SW

Humidity42%

Visibility6.2 mi

Dew point60°

Tue, 1392° / 65°

92 °

Aviston, Tuesday, 13 October

Clear. High 92°, low 65°.

Pressure29.91 inHg

Wind8.5 mph SW

Humidity48%

Visibility6.2 mi

Dew point64°

Wed, 1483° / 72°

0.18

83 °

Aviston, Wednesday, 14 October

Rain. High 83°, low 72°.

Pressure30.00 inHg

Wind4.6 mph S

Humidity70%

Visibility6.0 mi

Dew point69°

Thu, 1578° / 70°

1.04

78 °

Aviston, Thursday, 15 October

Heavy rain. High 78°, low 70°.

Pressure30.03 inHg

Wind8.9 mph SW

Humidity90%

Visibility4.4 mi

Dew point73°

Fri, 1671° / 53°

0.03

71 °

Aviston, Friday, 16 October

Light rain. High 71°, low 53°.

Pressure30.39 inHg

Wind19.7 mph NW

Humidity45%

Visibility—

Dew point38°

Sat, 1760° / 44°

60 °

Aviston, Saturday, 17 October

Clear. High 60°, low 44°.

Pressure30.50 inHg

Wind7.9 mph N

Humidity43%

Visibility—

Dew point35°

Sun, 1866° / 37°

66 °

Aviston, Sunday, 18 October

Clear. High 66°, low 37°.

Pressure30.45 inHg

Wind11.9 mph S

Humidity20%

Visibility—

Dew point17°

Mon, 1972° / 48°

72 °

Aviston, Monday, 19 October

Overcast. High 72°, low 48°.

Pressure30.33 inHg

Wind13.4 mph S

Humidity43%

Visibility—

Dew point43°

Tue, 2078° / 56°

78 °

Aviston, Tuesday, 20 October

Overcast. High 78°, low 56°.

Pressure30.15 inHg

Wind12.9 mph S

Humidity48%

Visibility—

Dew point53°

Wed, 2180° / 63°

0.14

80 °

Aviston, Wednesday, 21 October

Light rain. High 80°, low 63°.

Pressure30.00 inHg

Wind19.3 mph S

Humidity51%

Visibility—

Dew point58°

Thu, 2268° / 55°

0.28

68 °

Aviston, Thursday, 22 October

Light rain. High 68°, low 55°.

Pressure29.88 inHg

Wind20.8 mph S

Humidity49%

Visibility—

Dew point45°

Fri, 2358° / 46°

58 °

Aviston, Friday, 23 October

Clear. High 58°, low 46°.

Pressure30.06 inHg

Wind17.9 mph NW

Humidity37%

Visibility—

Dew point31°

Sat, 2458° / 39°

58 °

Aviston, Saturday, 24 October

Mostly clear. High 58°, low 39°.

Pressure30.15 inHg

Wind7.8 mph SE

Humidity36%

Visibility—

Dew point28°

Sun, 2567° / 50°

67 °

Aviston, Sunday, 25 October

Overcast. High 67°, low 50°.

Pressure29.71 inHg

Wind16.5 mph S

Humidity36%

Visibility—

Dew point35°

Mon, 2663° / 47°

63 °

Aviston, Monday, 26 October

Overcast. High 63°, low 47°.

Pressure30.00 inHg

Wind12.6 mph NW

Humidity50%

Visibility—

Dew point41°

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.