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As of 17:34 CDT

Weather in Jefferson, WI

81°Current weather

Jefferson, Saturday, 8 August, 17:34

Clear. Feels like 82°. High 81°, low 66°.

Pressure30.00 inHg
Wind3 mph W
Humidity50%
Visibility6.2 mi
Dew point61°
Sun, 0984° / 64°0.6Rain
84 °Rain

Jefferson, Sunday, 9 August

Rain. High 84°, low 64°.

Pressure29.85 inHg
Wind7.8 mph S
Humidity92%
Visibility6.2 mi
Dew point67°
Mon, 1082° / 71°0.04Light rain
82 °Light rain

Jefferson, Monday, 10 August

Light rain. High 82°, low 71°.

Pressure29.88 inHg
Wind0.5 mph SW
Humidity75%
Visibility6.2 mi
Dew point69°
Tue, 1178° / 66°0.07Light rain
78 °Light rain

Jefferson, Tuesday, 11 August

Light rain. High 78°, low 66°.

Pressure29.85 inHg
Wind13.4 mph NE
Humidity93%
Visibility6.2 mi
Dew point68°
Wed, 1284° / 64°0.01Light rain
84 °Light rain

Jefferson, Wednesday, 12 August

Light rain. High 84°, low 64°.

Pressure29.85 inHg
Wind4.9 mph NW
Humidity71%
Visibility6.2 mi
Dew point70°
Thu, 1373° / 58°0.02Light rain
73 °Light rain

Jefferson, Thursday, 13 August

Light rain. High 73°, low 58°.

Pressure29.97 inHg
Wind7.9 mph N
Humidity65%
Visibility—
Dew point58°
Fri, 1472° / 54°0Clear
72 °Clear

Jefferson, Friday, 14 August

Clear. High 72°, low 54°.

Pressure30.21 inHg
Wind7.9 mph S
Humidity56%
Visibility—
Dew point52°
Sat, 1574° / 54°0Overcast
74 °Overcast

Jefferson, Saturday, 15 August

Overcast. High 74°, low 54°.

Pressure30.30 inHg
Wind9.1 mph SW
Humidity60%
Visibility—
Dew point56°
Sun, 1677° / 56°0Overcast
77 °Overcast

Jefferson, Sunday, 16 August

Overcast. High 77°, low 56°.

Pressure30.15 inHg
Wind11.9 mph S
Humidity60%
Visibility—
Dew point58°
Mon, 1782° / 65°0.1Light rain
82 °Light rain

Jefferson, Monday, 17 August

Light rain. High 82°, low 65°.

Pressure29.97 inHg
Wind7.4 mph S
Humidity74%
Visibility—
Dew point69°
Tue, 1881° / 65°0.01Light rain
81 °Light rain

Jefferson, Tuesday, 18 August

Light rain. High 81°, low 65°.

Pressure30.03 inHg
Wind8.1 mph SE
Humidity64%
Visibility—
Dew point64°
Wed, 1975° / 63°0.42Rain
75 °Rain

Jefferson, Wednesday, 19 August

Rain. High 75°, low 63°.

Pressure29.91 inHg
Wind7.6 mph NW
Humidity87%
Visibility—
Dew point69°
Thu, 2076° / 61°0Light rain
76 °Light rain

Jefferson, Thursday, 20 August

Light rain. High 76°, low 61°.

Pressure29.94 inHg
Wind11.9 mph NE
Humidity67%
Visibility—
Dew point62°
Fri, 2177° / 60°0.02Light rain
77 °Light rain

Jefferson, Friday, 21 August

Light rain. High 77°, low 60°.

Pressure30.00 inHg
Wind7.8 mph SE
Humidity66%
Visibility—
Dew point60°
Sat, 2265° / 52°0.13Light rain
65 °Light rain

Jefferson, Saturday, 22 August

Light rain. High 65°, low 52°.

Pressure30.03 inHg
Wind15.3 mph NE
Humidity85%
Visibility—
Dew point57°
Sun, 2368° / 43°0Partly cloudy
68 °Partly cloudy

Jefferson, Sunday, 23 August

Partly cloudy. High 68°, low 43°.

Pressure30.24 inHg
Wind9.3 mph NE
Humidity55%
Visibility—
Dew point46°

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 Jefferson, 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 Jefferson, 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.