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As of 14:25 CDT

Weather in Olney, IL

83°Current weather

Olney, Thursday, 8 October, 14:25

Clear. Feels like 81°. High 83°, low 52°.

Pressure30.06 inHg
Wind6.9 mph NW
Humidity23%
Visibility6.2 mi
Dew point42°
Fri, 0987° / 51°0Clear
87 °Clear

Olney, Friday, 9 October

Clear. High 87°, low 51°.

Pressure30.15 inHg
Wind7 mph S
Humidity34%
Visibility6.2 mi
Dew point49°
Sat, 1075° / 57°0.02Light rain
75 °Light rain

Olney, Saturday, 10 October

Light rain. High 75°, low 57°.

Pressure30.09 inHg
Wind6.9 mph E
Humidity46%
Visibility6.2 mi
Dew point53°
Sun, 1172° / 60°0.63Heavy rain
72 °Heavy rain

Olney, Sunday, 11 October

Heavy rain. High 72°, low 60°.

Pressure29.91 inHg
Wind7.2 mph N
Humidity93%
Visibility2.2 mi
Dew point61°
Mon, 1284° / 56°0Clear
84 °Clear

Olney, Monday, 12 October

Clear. High 84°, low 56°.

Pressure29.94 inHg
Wind7.1 mph SW
Humidity57%
Visibility6.2 mi
Dew point62°
Tue, 1386° / 67°0Clear
86 °Clear

Olney, Tuesday, 13 October

Clear. High 86°, low 67°.

Pressure29.88 inHg
Wind10.6 mph SW
Humidity48%
Visibility—
Dew point61°
Wed, 1487° / 63°0Overcast
87 °Overcast

Olney, Wednesday, 14 October

Overcast. High 87°, low 63°.

Pressure29.97 inHg
Wind10.4 mph SE
Humidity49%
Visibility—
Dew point58°
Thu, 1594° / 74°0Clear
94 °Clear

Olney, Thursday, 15 October

Clear. High 94°, low 74°.

Pressure29.94 inHg
Wind19.2 mph SW
Humidity36%
Visibility—
Dew point61°
Fri, 1680° / 59°0.17Light rain
80 °Light rain

Olney, Friday, 16 October

Light rain. High 80°, low 59°.

Pressure30.15 inHg
Wind17 mph NW
Humidity68%
Visibility—
Dew point67°
Sat, 1765° / 51°0Overcast
65 °Overcast

Olney, Saturday, 17 October

Overcast. High 65°, low 51°.

Pressure30.50 inHg
Wind17.5 mph NE
Humidity36%
Visibility—
Dew point35°
Sun, 1868° / 42°0Overcast
68 °Overcast

Olney, Sunday, 18 October

Overcast. High 68°, low 42°.

Pressure30.39 inHg
Wind11.9 mph E
Humidity25%
Visibility—
Dew point25°
Mon, 1969° / 55°0.05Light rain
69 °Light rain

Olney, Monday, 19 October

Light rain. High 69°, low 55°.

Pressure30.27 inHg
Wind13.2 mph S
Humidity42%
Visibility—
Dew point41°
Tue, 2075° / 60°0.04Light rain
75 °Light rain

Olney, Tuesday, 20 October

Light rain. High 75°, low 60°.

Pressure30.18 inHg
Wind14.3 mph S
Humidity51%
Visibility—
Dew point53°
Wed, 2177° / 59°0.09Light rain
77 °Light rain

Olney, Wednesday, 21 October

Light rain. High 77°, low 59°.

Pressure30.09 inHg
Wind10.1 mph SW
Humidity57%
Visibility—
Dew point57°
Thu, 2277° / 55°0.07Light rain
77 °Light rain

Olney, Thursday, 22 October

Light rain. High 77°, low 55°.

Pressure29.94 inHg
Wind16.7 mph SW
Humidity49%
Visibility—
Dew point54°
Fri, 2366° / 45°0Clear
66 °Clear

Olney, Friday, 23 October

Clear. High 66°, low 45°.

Pressure30.18 inHg
Wind7.8 mph NW
Humidity30%
Visibility—
Dew point29°

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.