EN
English Español

As of 01:11 CDT

Weather in Seneca, IL

54°Current weather

Seneca, Friday, 9 October, 01:11

Overcast. Feels like 53°. High 76°, low 53°.

Pressure30.09 inHg
Wind4.1 mph SE
Humidity77%
Visibility6.2 mi
Dew point48°
Sat, 1079° / 57°0Overcast
79 °Overcast

Seneca, Saturday, 10 October

Overcast. High 79°, low 57°.

Pressure30.09 inHg
Wind7.1 mph SE
Humidity53%
Visibility6.2 mi
Dew point55°
Sun, 1174° / 57°0Partly cloudy
74 °Partly cloudy

Seneca, Sunday, 11 October

Partly cloudy. High 74°, low 57°.

Pressure29.94 inHg
Wind4.3 mph NE
Humidity63%
Visibility6.2 mi
Dew point57°
Mon, 1283° / 59°0Clear
83 °Clear

Seneca, Monday, 12 October

Clear. High 83°, low 59°.

Pressure29.83 inHg
Wind9.3 mph SW
Humidity55%
Visibility6.2 mi
Dew point61°
Tue, 1378° / 63°0Partly cloudy
78 °Partly cloudy

Seneca, Tuesday, 13 October

Partly cloudy. High 78°, low 63°.

Pressure29.83 inHg
Wind10.3 mph NW
Humidity67%
Visibility—
Dew point65°
Wed, 1468° / 58°0.02Light rain
68 °Light rain

Seneca, Wednesday, 14 October

Light rain. High 68°, low 58°.

Pressure30.06 inHg
Wind11.8 mph E
Humidity57%
Visibility—
Dew point49°
Thu, 1583° / 59°0.44Rain
83 °Rain

Seneca, Thursday, 15 October

Rain. High 83°, low 59°.

Pressure29.80 inHg
Wind17.8 mph SW
Humidity61%
Visibility—
Dew point65°
Fri, 1667° / 50°0Overcast
67 °Overcast

Seneca, Friday, 16 October

Overcast. High 67°, low 50°.

Pressure30.12 inHg
Wind14.2 mph NW
Humidity65%
Visibility—
Dew point45°
Sat, 1751° / 41°0Clear
51 °Clear

Seneca, Saturday, 17 October

Clear. High 51°, low 41°.

Pressure30.47 inHg
Wind15.1 mph N
Humidity44%
Visibility—
Dew point28°
Sun, 1853° / 39°0Overcast
53 °Overcast

Seneca, Sunday, 18 October

Overcast. High 53°, low 39°.

Pressure30.50 inHg
Wind4.3 mph E
Humidity41%
Visibility—
Dew point28°
Mon, 1957° / 39°0Overcast
57 °Overcast

Seneca, Monday, 19 October

Overcast. High 57°, low 39°.

Pressure30.50 inHg
Wind7.3 mph E
Humidity42%
Visibility—
Dew point31°
Tue, 2053° / 46°0Overcast
53 °Overcast

Seneca, Tuesday, 20 October

Overcast. High 53°, low 46°.

Pressure30.33 inHg
Wind7.1 mph S
Humidity60%
Visibility—
Dew point37°
Wed, 2167° / 46°0Clear
67 °Clear

Seneca, Wednesday, 21 October

Clear. High 67°, low 46°.

Pressure30.15 inHg
Wind9.9 mph W
Humidity59%
Visibility—
Dew point47°
Thu, 2265° / 51°0Clear
65 °Clear

Seneca, Thursday, 22 October

Clear. High 65°, low 51°.

Pressure30.18 inHg
Wind9.1 mph N
Humidity55%
Visibility—
Dew point47°
Fri, 2357° / 45°0Mostly clear
57 °Mostly clear

Seneca, Friday, 23 October

Mostly clear. High 57°, low 45°.

Pressure30.33 inHg
Wind12.2 mph NE
Humidity50%
Visibility—
Dew point37°
Sat, 2460° / 41°0Clear
60 °Clear

Seneca, Saturday, 24 October

Clear. High 60°, low 41°.

Pressure30.18 inHg
Wind14.1 mph SW
Humidity41%
Visibility—
Dew point34°

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 Seneca, 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 Seneca, 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.