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As of 05:07 CDT

Weather in Somonauk, IL

37°Current weather

Somonauk, Wednesday, 21 October, 05:07

Clear. Feels like 37°. High 73°, low 37°.

Pressure30.27 inHg
Wind1.6 mph SE
Humidity93%
Visibility6.2 mi
Dew point36°
Thu, 2273° / 45°0Clear
73 °Clear

Somonauk, Thursday, 22 October

Clear. High 73°, low 45°.

Pressure30.27 inHg
Wind2.4 mph E
Humidity56%
Visibility6.2 mi
Dew point53°
Fri, 2369° / 51°0Mostly clear
69 °Mostly clear

Somonauk, Friday, 23 October

Mostly clear. High 69°, low 51°.

Pressure30.33 inHg
Wind3.8 mph SE
Humidity74%
Visibility6.2 mi
Dew point55°
Sat, 2468° / 49°0Overcast
68 °Overcast

Somonauk, Saturday, 24 October

Overcast. High 68°, low 49°.

Pressure30.36 inHg
Wind7.8 mph S
Humidity59%
Visibility6.2 mi
Dew point51°
Sun, 2571° / 50°0Overcast
71 °Overcast

Somonauk, Sunday, 25 October

Overcast. High 71°, low 50°.

Pressure30.36 inHg
Wind6.5 mph S
Humidity52%
Visibility—
Dew point48°
Mon, 2672° / 51°0Overcast
72 °Overcast

Somonauk, Monday, 26 October

Overcast. High 72°, low 51°.

Pressure30.21 inHg
Wind11.8 mph NE
Humidity53%
Visibility—
Dew point50°
Tue, 2756° / 50°0.04Light rain
56 °Light rain

Somonauk, Tuesday, 27 October

Light rain. High 56°, low 50°.

Pressure30.21 inHg
Wind10.8 mph NE
Humidity77%
Visibility—
Dew point48°
Wed, 2859° / 49°0.16Rain
59 °Rain

Somonauk, Wednesday, 28 October

Rain. High 59°, low 49°.

Pressure30.09 inHg
Wind11.5 mph SW
Humidity69%
Visibility—
Dew point48°
Thu, 2950° / 41°0.07Light rain
50 °Light rain

Somonauk, Thursday, 29 October

Light rain. High 50°, low 41°.

Pressure30.21 inHg
Wind19.3 mph NW
Humidity64%
Visibility—
Dew point33°
Fri, 3051° / 37°0Clear
51 °Clear

Somonauk, Friday, 30 October

Clear. High 51°, low 37°.

Pressure30.30 inHg
Wind7 mph NW
Humidity45%
Visibility—
Dew point28°
Sat, 3149° / 36°0Overcast
49 °Overcast

Somonauk, Saturday, 31 October

Overcast. High 49°, low 36°.

Pressure30.30 inHg
Wind12.4 mph SE
Humidity43%
Visibility—
Dew point25°
Sun, 0151° / 44°0.43Rain
51 °Rain

Somonauk, Sunday, 1 November

Rain. High 51°, low 44°.

Pressure30.00 inHg
Wind10.7 mph SE
Humidity97%
Visibility—
Dew point49°
Mon, 0254° / 51°0.35Rain
54 °Rain

Somonauk, Monday, 2 November

Rain. High 54°, low 51°.

Pressure29.97 inHg
Wind5.4 mph N
Humidity96%
Visibility—
Dew point53°
Tue, 0361° / 52°0Overcast
61 °Overcast

Somonauk, Tuesday, 3 November

Overcast. High 61°, low 52°.

Pressure29.97 inHg
Wind9.3 mph E
Humidity80%
Visibility—
Dew point51°
Wed, 0466° / 53°0.75Heavy rain
66 °Heavy rain

Somonauk, Wednesday, 4 November

Heavy rain. High 66°, low 53°.

Pressure29.77 inHg
Wind16.4 mph S
Humidity87%
Visibility—
Dew point58°
Thu, 0567° / 59°0.09Light rain
67 °Light rain

Somonauk, Thursday, 5 November

Light rain. High 67°, low 59°.

Pressure29.85 inHg
Wind17.5 mph SW
Humidity70%
Visibility—
Dew point56°

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.