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As of 12:22 CDT

Weather in Somonauk, IL

67°Current weather

Somonauk, Wednesday, 21 October, 12:22

Clear. Feels like 66°. High 70°, low 42°.

Pressure30.27 inHg
Wind4.7 mph S
Humidity60%
Visibility6.2 mi
Dew point51°
Thu, 2272° / 45°0Clear
72 °Clear

Somonauk, Thursday, 22 October

Clear. High 72°, low 45°.

Pressure30.27 inHg
Wind2.1 mph SE
Humidity60%
Visibility6.2 mi
Dew point54°
Fri, 2369° / 48°0Clear
69 °Clear

Somonauk, Friday, 23 October

Clear. High 69°, low 48°.

Pressure30.33 inHg
Wind4.7 mph SE
Humidity69%
Visibility6.2 mi
Dew point54°
Sat, 2467° / 48°0Overcast
67 °Overcast

Somonauk, Saturday, 24 October

Overcast. High 67°, low 48°.

Pressure30.39 inHg
Wind7.5 mph S
Humidity59%
Visibility6.2 mi
Dew point50°
Sun, 2570° / 48°0Overcast
70 °Overcast

Somonauk, Sunday, 25 October

Overcast. High 70°, low 48°.

Pressure30.36 inHg
Wind5.7 mph S
Humidity58%
Visibility6.2 mi
Dew point50°
Mon, 2670° / 51°0Overcast
70 °Overcast

Somonauk, Monday, 26 October

Overcast. High 70°, low 51°.

Pressure30.21 inHg
Wind8.4 mph SW
Humidity52%
Visibility—
Dew point48°
Tue, 2761° / 51°0Overcast
61 °Overcast

Somonauk, Tuesday, 27 October

Overcast. High 61°, low 51°.

Pressure30.30 inHg
Wind9.6 mph E
Humidity59%
Visibility—
Dew point44°
Wed, 2869° / 54°0.02Light rain
69 °Light rain

Somonauk, Wednesday, 28 October

Light rain. High 69°, low 54°.

Pressure30.06 inHg
Wind13.8 mph SW
Humidity57%
Visibility—
Dew point50°
Thu, 2962° / 44°0.04Light rain
62 °Light rain

Somonauk, Thursday, 29 October

Light rain. High 62°, low 44°.

Pressure30.24 inHg
Wind13.8 mph N
Humidity52%
Visibility—
Dew point36°
Fri, 3057° / 42°0Overcast
57 °Overcast

Somonauk, Friday, 30 October

Overcast. High 57°, low 42°.

Pressure30.27 inHg
Wind10.9 mph E
Humidity38%
Visibility—
Dew point29°
Sat, 3162° / 47°0.39Rain
62 °Rain

Somonauk, Saturday, 31 October

Rain. High 62°, low 47°.

Pressure29.91 inHg
Wind17.9 mph S
Humidity78%
Visibility—
Dew point49°
Sun, 0160° / 57°1.67Rain
60 °Rain

Somonauk, Sunday, 1 November

Rain. High 60°, low 57°.

Pressure29.85 inHg
Wind18.4 mph S
Humidity92%
Visibility—
Dew point56°
Mon, 0261° / 57°0.73Rain
61 °Rain

Somonauk, Monday, 2 November

Rain. High 61°, low 57°.

Pressure29.83 inHg
Wind11.3 mph N
Humidity98%
Visibility—
Dew point59°
Tue, 0360° / 56°0.77Rain
60 °Rain

Somonauk, Tuesday, 3 November

Rain. High 60°, low 56°.

Pressure29.68 inHg
Wind14.9 mph NE
Humidity97%
Visibility—
Dew point58°
Wed, 0461° / 54°0.42Light rain
61 °Light rain

Somonauk, Wednesday, 4 November

Light rain. High 61°, low 54°.

Pressure29.41 inHg
Wind14.5 mph NE
Humidity79%
Visibility—
Dew point54°
Thu, 0553° / 48°0.15Light rain
53 °Light rain

Somonauk, Thursday, 5 November

Light rain. High 53°, low 48°.

Pressure29.53 inHg
Wind13.4 mph S
Humidity91%
Visibility—
Dew point47°

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 Somonauk, 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 Somonauk, 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.