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As of 16:17 CDT

Weather in South Streator, IL

85°Current weather

South Streator, Sunday, 9 August, 16:17

Rain. Feels like 98°. High 85°, low 65°.

Pressure29.88 inHg
Wind11.4 mph S
Humidity87%
Visibility6.2 mi
Dew point80°
Mon, 1091° / 74°0Overcast
91 °Overcast

South Streator, Monday, 10 August

Overcast. High 91°, low 74°.

Pressure29.88 inHg
Wind6.8 mph W
Humidity69%
Visibility6.2 mi
Dew point74°
Tue, 1191° / 72°0.02Light rain
91 °Light rain

South Streator, Tuesday, 11 August

Light rain. High 91°, low 72°.

Pressure29.83 inHg
Wind5 mph W
Humidity77%
Visibility6.2 mi
Dew point74°
Wed, 1286° / 66°0Light rain
86 °Light rain

South Streator, Wednesday, 12 August

Light rain. High 86°, low 66°.

Pressure29.88 inHg
Wind4.1 mph E
Humidity61%
Visibility6.2 mi
Dew point67°
Thu, 1383° / 64°0.66Heavy rain
83 °Heavy rain

South Streator, Thursday, 13 August

Heavy rain. High 83°, low 64°.

Pressure29.94 inHg
Wind10.7 mph SE
Humidity65%
Visibility6.2 mi
Dew point68°
Fri, 1480° / 69°1.65Heavy rain
80 °Heavy rain

South Streator, Friday, 14 August

Heavy rain. High 80°, low 69°.

Pressure30.00 inHg
Wind12.5 mph SE
Humidity85%
Visibility—
Dew point71°
Sat, 1591° / 72°0Overcast
91 °Overcast

South Streator, Saturday, 15 August

Overcast. High 91°, low 72°.

Pressure29.91 inHg
Wind11.7 mph E
Humidity65%
Visibility—
Dew point73°
Sun, 1687° / 70°0.02Light rain
87 °Light rain

South Streator, Sunday, 16 August

Light rain. High 87°, low 70°.

Pressure30.00 inHg
Wind15.7 mph SW
Humidity80%
Visibility—
Dew point66°
Mon, 1779° / 63°0Overcast
79 °Overcast

South Streator, Monday, 17 August

Overcast. High 79°, low 63°.

Pressure30.00 inHg
Wind13.9 mph SE
Humidity70%
Visibility—
Dew point63°
Tue, 1887° / 74°0Overcast
87 °Overcast

South Streator, Tuesday, 18 August

Overcast. High 87°, low 74°.

Pressure29.88 inHg
Wind14.3 mph SW
Humidity67%
Visibility—
Dew point72°
Wed, 1986° / 69°0Overcast
86 °Overcast

South Streator, Wednesday, 19 August

Overcast. High 86°, low 69°.

Pressure30.03 inHg
Wind6.8 mph NW
Humidity62%
Visibility—
Dew point67°
Thu, 2088° / 70°0.43Rain
88 °Rain

South Streator, Thursday, 20 August

Rain. High 88°, low 70°.

Pressure29.83 inHg
Wind11.6 mph SE
Humidity69%
Visibility—
Dew point72°
Fri, 2179° / 68°0Overcast
79 °Overcast

South Streator, Friday, 21 August

Overcast. High 79°, low 68°.

Pressure29.88 inHg
Wind12.5 mph N
Humidity84%
Visibility—
Dew point70°
Sat, 2280° / 60°0Clear
80 °Clear

South Streator, Saturday, 22 August

Clear. High 80°, low 60°.

Pressure30.00 inHg
Wind8.7 mph NE
Humidity57%
Visibility—
Dew point60°
Sun, 2384° / 62°0Overcast
84 °Overcast

South Streator, Sunday, 23 August

Overcast. High 84°, low 62°.

Pressure29.97 inHg
Wind6.5 mph SE
Humidity62%
Visibility—
Dew point65°
Mon, 2487° / 68°0.01Light rain
87 °Light rain

South Streator, Monday, 24 August

Light rain. High 87°, low 68°.

Pressure30.00 inHg
Wind7.3 mph NW
Humidity59%
Visibility—
Dew point67°

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 South Streator, 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 South Streator, 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.