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As of 19:31 CDT

Weather in Hermon, IL

68°Current weather

Hermon, Friday, 9 October, 19:31

Mostly clear. Feels like 68°. High 79°, low 55°.

Pressure30.00 inHg
Wind9.8 mph SE
Humidity69%
Visibility6.2 mi
Dew point58°
Sat, 1080° / 59°0Overcast
80 °Overcast

Hermon, Saturday, 10 October

Overcast. High 80°, low 59°.

Pressure30.06 inHg
Wind8.5 mph S
Humidity54%
Visibility6.2 mi
Dew point56°
Sun, 1179° / 54°0Clear
79 °Clear

Hermon, Sunday, 11 October

Clear. High 79°, low 54°.

Pressure29.94 inHg
Wind4.7 mph S
Humidity56%
Visibility6.2 mi
Dew point57°
Mon, 1285° / 65°0Partly cloudy
85 °Partly cloudy

Hermon, Monday, 12 October

Partly cloudy. High 85°, low 65°.

Pressure29.83 inHg
Wind10.8 mph SW
Humidity53%
Visibility6.2 mi
Dew point61°
Tue, 1382° / 72°0Light rain
82 °Light rain

Hermon, Tuesday, 13 October

Light rain. High 82°, low 72°.

Pressure29.85 inHg
Wind6 mph W
Humidity67%
Visibility6.2 mi
Dew point68°
Wed, 1471° / 63°0.73Heavy rain
71 °Heavy rain

Hermon, Wednesday, 14 October

Heavy rain. High 71°, low 63°.

Pressure30.06 inHg
Wind11.1 mph E
Humidity66%
Visibility—
Dew point58°
Thu, 1576° / 56°0.56Heavy rain
76 °Heavy rain

Hermon, Thursday, 15 October

Heavy rain. High 76°, low 56°.

Pressure29.85 inHg
Wind18.3 mph SW
Humidity77%
Visibility—
Dew point61°
Fri, 1664° / 45°0Clear
64 °Clear

Hermon, Friday, 16 October

Clear. High 64°, low 45°.

Pressure30.06 inHg
Wind22.8 mph W
Humidity44%
Visibility—
Dew point33°
Sat, 1744° / 37°0Overcast
44 °Overcast

Hermon, Saturday, 17 October

Overcast. High 44°, low 37°.

Pressure30.42 inHg
Wind20.7 mph NW
Humidity57%
Visibility—
Dew point28°
Sun, 1850° / 32°0Clear
50 °Clear

Hermon, Sunday, 18 October

Clear. High 50°, low 32°.

Pressure30.50 inHg
Wind5.7 mph SE
Humidity40%
Visibility—
Dew point23°
Mon, 1958° / 40°0Overcast
58 °Overcast

Hermon, Monday, 19 October

Overcast. High 58°, low 40°.

Pressure30.39 inHg
Wind10.2 mph S
Humidity40%
Visibility—
Dew point29°
Tue, 2065° / 43°0Clear
65 °Clear

Hermon, Tuesday, 20 October

Clear. High 65°, low 43°.

Pressure30.39 inHg
Wind8 mph S
Humidity37%
Visibility—
Dew point33°
Wed, 2169° / 46°0Clear
69 °Clear

Hermon, Wednesday, 21 October

Clear. High 69°, low 46°.

Pressure30.27 inHg
Wind12 mph S
Humidity38%
Visibility—
Dew point37°
Thu, 2269° / 49°0Clear
69 °Clear

Hermon, Thursday, 22 October

Clear. High 69°, low 49°.

Pressure30.12 inHg
Wind9.1 mph W
Humidity43%
Visibility—
Dew point42°
Fri, 2372° / 51°0Clear
72 °Clear

Hermon, Friday, 23 October

Clear. High 72°, low 51°.

Pressure30.03 inHg
Wind8 mph SW
Humidity44%
Visibility—
Dew point45°
Sat, 2474° / 53°0Mostly clear
74 °Mostly clear

Hermon, Saturday, 24 October

Mostly clear. High 74°, low 53°.

Pressure30.00 inHg
Wind13.2 mph SW
Humidity35%
Visibility—
Dew point42°

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 Hermon, 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 Hermon, 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.