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As of 13:30 CDT

Weather in Olin, IL

83°Current weather

Olin, Saturday, 8 August, 13:30

Clear. Feels like 87°. High 85°, low 69°.

Pressure30.03 inHg
Wind5 mph N
Humidity63%
Visibility6.2 mi
Dew point70°
Sun, 0993° / 68°0Overcast
93 °Overcast

Olin, Sunday, 9 August

Overcast. High 93°, low 68°.

Pressure29.88 inHg
Wind14.8 mph SW
Humidity62%
Visibility6.2 mi
Dew point74°
Mon, 1091° / 76°0Overcast
91 °Overcast

Olin, Monday, 10 August

Overcast. High 91°, low 76°.

Pressure29.88 inHg
Wind13.1 mph SW
Humidity58%
Visibility6.2 mi
Dew point71°
Tue, 1191° / 71°0.03Light rain
91 °Light rain

Olin, Tuesday, 11 August

Light rain. High 91°, low 71°.

Pressure29.80 inHg
Wind12.4 mph SW
Humidity52%
Visibility6.2 mi
Dew point70°
Wed, 1282° / 69°0.02Light rain
82 °Light rain

Olin, Wednesday, 12 August

Light rain. High 82°, low 69°.

Pressure29.88 inHg
Wind11.1 mph NE
Humidity76%
Visibility6.2 mi
Dew point71°
Thu, 1371° / 66°0.38Rain
71 °Rain

Olin, Thursday, 13 August

Rain. High 71°, low 66°.

Pressure29.91 inHg
Wind10.8 mph NE
Humidity95%
Visibility—
Dew point68°
Fri, 1476° / 55°0Clear
76 °Clear

Olin, Friday, 14 August

Clear. High 76°, low 55°.

Pressure30.18 inHg
Wind8.3 mph NE
Humidity57%
Visibility—
Dew point56°
Sat, 1576° / 56°0Overcast
76 °Overcast

Olin, Saturday, 15 August

Overcast. High 76°, low 56°.

Pressure30.30 inHg
Wind8.1 mph SE
Humidity54%
Visibility—
Dew point54°
Sun, 1681° / 58°0Overcast
81 °Overcast

Olin, Sunday, 16 August

Overcast. High 81°, low 58°.

Pressure30.18 inHg
Wind12.7 mph S
Humidity69%
Visibility—
Dew point59°
Mon, 1782° / 66°0.06Light rain
82 °Light rain

Olin, Monday, 17 August

Light rain. High 82°, low 66°.

Pressure29.94 inHg
Wind9.4 mph S
Humidity80%
Visibility—
Dew point72°
Tue, 1885° / 71°0.01Light rain
85 °Light rain

Olin, Tuesday, 18 August

Light rain. High 85°, low 71°.

Pressure30.00 inHg
Wind8.1 mph E
Humidity66%
Visibility—
Dew point70°
Wed, 1991° / 68°0.13Light rain
91 °Light rain

Olin, Wednesday, 19 August

Light rain. High 91°, low 68°.

Pressure29.88 inHg
Wind7.6 mph S
Humidity56%
Visibility—
Dew point69°
Thu, 2082° / 68°0.37Rain
82 °Rain

Olin, Thursday, 20 August

Rain. High 82°, low 68°.

Pressure29.88 inHg
Wind10.5 mph N
Humidity65%
Visibility—
Dew point67°
Fri, 2182° / 62°0Clear
82 °Clear

Olin, Friday, 21 August

Clear. High 82°, low 62°.

Pressure29.94 inHg
Wind8.3 mph NE
Humidity58%
Visibility—
Dew point62°
Sat, 2282° / 62°0Partly cloudy
82 °Partly cloudy

Olin, Saturday, 22 August

Partly cloudy. High 82°, low 62°.

Pressure29.91 inHg
Wind18.5 mph NE
Humidity58%
Visibility—
Dew point63°
Sun, 2370° / 49°0Clear
70 °Clear

Olin, Sunday, 23 August

Clear. High 70°, low 49°.

Pressure30.21 inHg
Wind13.7 mph E
Humidity46%
Visibility—
Dew point44°

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 Olin, 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 Olin, 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.