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As of 04:38 CDT

Weather in Janesville, WI

61°Current weather

Janesville, Sunday, 9 August, 04:38

Overcast. Feels like 61°. High 79°, low 61°.

Pressure30.00 inHg
Wind5.8 mph S
Humidity95%
Visibility6.2 mi
Dew point60°
Mon, 1086° / 70°0.15Light rain
86 °Light rain

Janesville, Monday, 10 August

Light rain. High 86°, low 70°.

Pressure29.85 inHg
Wind12.7 mph E
Humidity82%
Visibility6.2 mi
Dew point71°
Tue, 1183° / 66°0.52Heavy rain
83 °Heavy rain

Janesville, Tuesday, 11 August

Heavy rain. High 83°, low 66°.

Pressure29.80 inHg
Wind14.9 mph SE
Humidity88%
Visibility6.2 mi
Dew point70°
Wed, 1280° / 67°0Overcast
80 °Overcast

Janesville, Wednesday, 12 August

Overcast. High 80°, low 67°.

Pressure29.85 inHg
Wind9.6 mph N
Humidity68%
Visibility6.2 mi
Dew point67°
Thu, 1370° / 59°0Overcast
70 °Overcast

Janesville, Thursday, 13 August

Overcast. High 70°, low 59°.

Pressure30.03 inHg
Wind8.4 mph NE
Humidity65%
Visibility—
Dew point57°
Fri, 1474° / 55°0Mostly clear
74 °Mostly clear

Janesville, Friday, 14 August

Mostly clear. High 74°, low 55°.

Pressure30.18 inHg
Wind9.9 mph E
Humidity58%
Visibility—
Dew point55°
Sat, 1574° / 54°0Overcast
74 °Overcast

Janesville, Saturday, 15 August

Overcast. High 74°, low 54°.

Pressure30.24 inHg
Wind7.6 mph E
Humidity60%
Visibility—
Dew point56°
Sun, 1673° / 62°0.04Light rain
73 °Light rain

Janesville, Sunday, 16 August

Light rain. High 73°, low 62°.

Pressure30.12 inHg
Wind6.4 mph SE
Humidity87%
Visibility—
Dew point62°
Mon, 1779° / 63°0Partly cloudy
79 °Partly cloudy

Janesville, Monday, 17 August

Partly cloudy. High 79°, low 63°.

Pressure30.09 inHg
Wind7.3 mph E
Humidity64%
Visibility—
Dew point63°
Tue, 1876° / 59°0Overcast
76 °Overcast

Janesville, Tuesday, 18 August

Overcast. High 76°, low 59°.

Pressure30.03 inHg
Wind8.2 mph S
Humidity77%
Visibility—
Dew point63°
Wed, 1986° / 67°0.18Light rain
86 °Light rain

Janesville, Wednesday, 19 August

Light rain. High 86°, low 67°.

Pressure29.88 inHg
Wind15.4 mph S
Humidity70%
Visibility—
Dew point70°
Thu, 2093° / 75°0Overcast
93 °Overcast

Janesville, Thursday, 20 August

Overcast. High 93°, low 75°.

Pressure29.77 inHg
Wind7.8 mph NW
Humidity59%
Visibility—
Dew point73°
Fri, 2184° / 69°0Partly cloudy
84 °Partly cloudy

Janesville, Friday, 21 August

Partly cloudy. High 84°, low 69°.

Pressure29.94 inHg
Wind11.5 mph NE
Humidity59%
Visibility—
Dew point65°
Sat, 2289° / 64°0.02Light rain
89 °Light rain

Janesville, Saturday, 22 August

Light rain. High 89°, low 64°.

Pressure29.85 inHg
Wind11.6 mph SE
Humidity59%
Visibility—
Dew point67°
Sun, 2383° / 67°0.01Light rain
83 °Light rain

Janesville, Sunday, 23 August

Light rain. High 83°, low 67°.

Pressure29.83 inHg
Wind13.4 mph NE
Humidity65%
Visibility—
Dew point68°
Mon, 2476° / 65°0.02Light rain
76 °Light rain

Janesville, Monday, 24 August

Light rain. High 76°, low 65°.

Pressure30.06 inHg
Wind11.2 mph NE
Humidity75%
Visibility—
Dew point66°

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, WI 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, WI 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.