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As of 23:35 CDT

Weather in Olney, IL

64°Current weather

Olney, Wednesday, 7 October, 23:35

Clear. Feels like 64°. High 85°, low 51°.

Pressure29.97 inHg
Wind0 mph N
Humidity76%
Visibility6.2 mi
Dew point56°
Thu, 0883° / 52°0Clear
83 °Clear

Olney, Thursday, 8 October

Clear. High 83°, low 52°.

Pressure30.09 inHg
Wind2.3 mph SW
Humidity30%
Visibility6.2 mi
Dew point45°
Fri, 0985° / 50°0Clear
85 °Clear

Olney, Friday, 9 October

Clear. High 85°, low 50°.

Pressure30.15 inHg
Wind8.3 mph S
Humidity32%
Visibility6.2 mi
Dew point48°
Sat, 1081° / 59°0Overcast
81 °Overcast

Olney, Saturday, 10 October

Overcast. High 81°, low 59°.

Pressure30.15 inHg
Wind5.6 mph E
Humidity47%
Visibility6.2 mi
Dew point57°
Sun, 1169° / 61°0.45Rain
69 °Rain

Olney, Sunday, 11 October

Rain. High 69°, low 61°.

Pressure29.91 inHg
Wind6.3 mph NE
Humidity84%
Visibility6.2 mi
Dew point61°
Mon, 1285° / 59°0Clear
85 °Clear

Olney, Monday, 12 October

Clear. High 85°, low 59°.

Pressure29.91 inHg
Wind11.9 mph SW
Humidity47%
Visibility—
Dew point56°
Tue, 1373° / 58°0Light rain
73 °Light rain

Olney, Tuesday, 13 October

Light rain. High 73°, low 58°.

Pressure29.97 inHg
Wind14.6 mph N
Humidity54%
Visibility—
Dew point54°
Wed, 1466° / 46°0Partly cloudy
66 °Partly cloudy

Olney, Wednesday, 14 October

Partly cloudy. High 66°, low 46°.

Pressure30.06 inHg
Wind9.8 mph SE
Humidity36%
Visibility—
Dew point36°
Thu, 1593° / 62°0Clear
93 °Clear

Olney, Thursday, 15 October

Clear. High 93°, low 62°.

Pressure29.91 inHg
Wind18.5 mph SW
Humidity41%
Visibility—
Dew point61°
Fri, 1689° / 71°0.02Light rain
89 °Light rain

Olney, Friday, 16 October

Light rain. High 89°, low 71°.

Pressure29.97 inHg
Wind20.8 mph SW
Humidity44%
Visibility—
Dew point62°
Sat, 1762° / 51°0.04Light rain
62 °Light rain

Olney, Saturday, 17 October

Light rain. High 62°, low 51°.

Pressure30.21 inHg
Wind14.5 mph NW
Humidity44%
Visibility—
Dew point36°
Sun, 1862° / 43°0Clear
62 °Clear

Olney, Sunday, 18 October

Clear. High 62°, low 43°.

Pressure30.27 inHg
Wind9.2 mph NW
Humidity39%
Visibility—
Dew point33°
Mon, 1966° / 41°0Clear
66 °Clear

Olney, Monday, 19 October

Clear. High 66°, low 41°.

Pressure30.27 inHg
Wind6.5 mph N
Humidity32%
Visibility—
Dew point30°
Tue, 2072° / 46°0Overcast
72 °Overcast

Olney, Tuesday, 20 October

Overcast. High 72°, low 46°.

Pressure30.15 inHg
Wind7.8 mph N
Humidity27%
Visibility—
Dew point31°
Wed, 2165° / 46°0Overcast
65 °Overcast

Olney, Wednesday, 21 October

Overcast. High 65°, low 46°.

Pressure30.18 inHg
Wind11.9 mph NE
Humidity28%
Visibility—
Dew point27°
Thu, 2259° / 50°0.17Light rain
59 °Light rain

Olney, Thursday, 22 October

Light rain. High 59°, low 50°.

Pressure29.83 inHg
Wind12.1 mph S
Humidity86%
Visibility—
Dew point50°

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 Olney, 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 Olney, 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.