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As of 22:20 CDT

Weather in Janesville, IL

61°Current weather

Janesville, Saturday, 31 October, 22:20

Overcast. Feels like 60°. High 67°, low 55°.

Pressure30.30 inHg
Wind4.6 mph E
Humidity59%
Visibility6.2 mi
Dew point47°
Sun, 0169° / 56°0.01Light rain
69 °Light rain

Janesville, Sunday, 1 November

Light rain. High 69°, low 56°.

Pressure30.30 inHg
Wind9.5 mph SE
Humidity71%
Visibility6.2 mi
Dew point53°
Mon, 0265° / 55°0.05Light rain
65 °Light rain

Janesville, Monday, 2 November

Light rain. High 65°, low 55°.

Pressure30.09 inHg
Wind11.2 mph S
Humidity86%
Visibility6.2 mi
Dew point57°
Tue, 0374° / 63°0Overcast
74 °Overcast

Janesville, Tuesday, 3 November

Overcast. High 74°, low 63°.

Pressure29.91 inHg
Wind20.6 mph S
Humidity65%
Visibility6.2 mi
Dew point61°
Wed, 0465° / 57°0.58Rain
65 °Rain

Janesville, Wednesday, 4 November

Rain. High 65°, low 57°.

Pressure29.74 inHg
Wind10.8 mph SW
Humidity69%
Visibility6.2 mi
Dew point53°
Thu, 0560° / 51°0Overcast
60 °Overcast

Janesville, Thursday, 5 November

Overcast. High 60°, low 51°.

Pressure29.77 inHg
Wind14 mph W
Humidity55%
Visibility—
Dew point42°
Fri, 0655° / 49°0.02Light rain
55 °Light rain

Janesville, Friday, 6 November

Light rain. High 55°, low 49°.

Pressure29.91 inHg
Wind11.9 mph NW
Humidity64%
Visibility—
Dew point42°
Sat, 0760° / 47°0.01Light rain
60 °Light rain

Janesville, Saturday, 7 November

Light rain. High 60°, low 47°.

Pressure29.71 inHg
Wind13.7 mph W
Humidity43%
Visibility—
Dew point34°
Sun, 0853° / 43°0.02Light rain
53 °Light rain

Janesville, Sunday, 8 November

Light rain. High 53°, low 43°.

Pressure29.68 inHg
Wind19.4 mph NW
Humidity36%
Visibility—
Dew point26°
Mon, 0953° / 37°0Mostly clear
53 °Mostly clear

Janesville, Monday, 9 November

Mostly clear. High 53°, low 37°.

Pressure29.91 inHg
Wind16.7 mph NW
Humidity44%
Visibility—
Dew point28°
Tue, 1056° / 40°0Overcast
56 °Overcast

Janesville, Tuesday, 10 November

Overcast. High 56°, low 40°.

Pressure30.06 inHg
Wind14.2 mph NW
Humidity41%
Visibility—
Dew point30°
Wed, 1154° / 36°0Clear
54 °Clear

Janesville, Wednesday, 11 November

Clear. High 54°, low 36°.

Pressure30.15 inHg
Wind9.9 mph NW
Humidity33%
Visibility—
Dew point22°
Thu, 1255° / 41°0Overcast
55 °Overcast

Janesville, Thursday, 12 November

Overcast. High 55°, low 41°.

Pressure29.97 inHg
Wind12.9 mph S
Humidity41%
Visibility—
Dew point30°
Fri, 1359° / 46°0.02Light rain
59 °Light rain

Janesville, Friday, 13 November

Light rain. High 59°, low 46°.

Pressure29.74 inHg
Wind11.6 mph NW
Humidity67%
Visibility—
Dew point45°
Sat, 1455° / 44°0Partly cloudy
55 °Partly cloudy

Janesville, Saturday, 14 November

Partly cloudy. High 55°, low 44°.

Pressure29.88 inHg
Wind19.2 mph NW
Humidity52%
Visibility—
Dew point36°
Sun, 1554° / 37°0Clear
54 °Clear

Janesville, Sunday, 15 November

Clear. High 54°, low 37°.

Pressure30.12 inHg
Wind10.2 mph N
Humidity52%
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 Janesville, 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 Janesville, 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.