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Current weather in Jefferson is overcast clouds.

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This page shows hourly weather forecast for Jefferson, including temperature, wind, precipitation, humidity and cloud cover.

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Weather data for Jefferson is updated regularly with the latest available observations and forecasts.

Now · 3:08 AM

Jefferson Weather & Hourly Forecast

United States · Wisconsin · 53549

64°F

Overcast night

Feels like: 64°F

💧 Humidity 85% 🌡 Pressure 30.12 inHg 💨 Wind 7 mph 👁 Visibility 18.0 mi ☁ Clouds 98% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Jefferson

Today

4:00 AM

Mostly cloudy night

64° 💧 None 💨 6 mph H 83%30.09 inHg

7:00 AM

Overcast

64° 💧 None 💨 8 mph H 79%30.12 inHg

10:00 AM

Overcast

71° 💧 None 💨 7 mph H 72%30.12 inHg

1:00 PM

Overcast

77° 💧 None 💨 10 mph H 60%30.06 inHg

4:00 PM

Partly cloudy

80° 💧 0.000 in 💨 10 mph H 58%30.00 inHg

7:00 PM

Sunny

78° 💧 None 💨 10 mph H 67%29.97 inHg

10:00 PM

Overcast night

76° 💧 None 💨 10 mph H 67%30.00 inHg

Tomorrow

1:00 AM

Overcast night

75° 💧 0.208 in 💨 9 mph H 69%29.94 inHg

4:00 AM

Light thunderstorms

70° 💧 0.237 in 💨 3 mph H 93%29.94 inHg

7:00 AM

Light rain

70° 💧 0.083 in 💨 8 mph H 96%29.97 inHg

10:00 AM

Overcast

73° 💧 0.002 in 💨 9 mph H 94%30.00 inHg

1:00 PM

Overcast

78° 💧 None 💨 8 mph H 66%29.97 inHg

4:00 PM

Mostly sunny

80° 💧 None 💨 8 mph H 59%29.94 inHg

7:00 PM

Mostly sunny

74° 💧 None 💨 6 mph H 75%29.94 inHg

10:00 PM

Overcast night

69° 💧 None 💨 6 mph H 78%29.97 inHg

Thursday

1:00 AM

Mostly cloudy night

66° 💧 None 💨 4 mph H 85%29.97 inHg

Today

4:00 AM

Mostly cloudy night

64° 💧 None 💨 6 mph H 83%30.09 inHg

5:00 AM

Overcast night

64° 💧 None 💨 8 mph H 81%30.09 inHg

6:00 AM

Overcast night

64° 💧 None 💨 7 mph H 80%30.12 inHg

7:00 AM

Overcast

64° 💧 None 💨 8 mph H 79%30.12 inHg

8:00 AM

Overcast

66° 💧 None 💨 7 mph H 77%30.12 inHg

9:00 AM

Overcast

69° 💧 None 💨 7 mph H 73%30.12 inHg

10:00 AM

Overcast

71° 💧 None 💨 7 mph H 72%30.12 inHg

11:00 AM

Overcast

73° 💧 None 💨 5 mph H 68%30.12 inHg

12:00 PM

Overcast

76° 💧 None 💨 9 mph H 63%30.09 inHg

1:00 PM

Overcast

77° 💧 None 💨 10 mph H 60%30.06 inHg

2:00 PM

Overcast

79° 💧 None 💨 8 mph H 59%30.03 inHg

3:00 PM

Partly cloudy

79° 💧 None 💨 10 mph H 59%30.03 inHg

4:00 PM

Partly cloudy

80° 💧 None 💨 10 mph H 58%30.00 inHg

5:00 PM

Mostly cloudy

81° 💧 0.000 in 💨 11 mph H 58%29.97 inHg

6:00 PM

Sunny

80° 💧 0.000 in 💨 10 mph H 63%29.97 inHg

7:00 PM

Sunny

78° 💧 None 💨 10 mph H 67%29.97 inHg

8:00 PM

Overcast night

76° 💧 None 💨 9 mph H 68%29.97 inHg

9:00 PM

Overcast night

76° 💧 None 💨 10 mph H 66%30.00 inHg

10:00 PM

Overcast night

76° 💧 None 💨 10 mph H 67%30.00 inHg

11:00 PM

Overcast night

75° 💧 None 💨 10 mph H 68%29.97 inHg

Tomorrow

12:00 AM

Overcast night

75° 💧 None 💨 10 mph H 69%29.97 inHg

1:00 AM

Overcast night

75° 💧 None 💨 9 mph H 69%29.94 inHg

2:00 AM

Light thunderstorms

72° 💧 0.055 in 💨 9 mph H 84%29.97 inHg

3:00 AM

Thunderstorms

71° 💧 0.154 in 💨 5 mph H 92%29.97 inHg

4:00 AM

Light thunderstorms

70° 💧 0.055 in 💨 3 mph H 93%29.94 inHg

5:00 AM

Light rain

70° 💧 0.081 in 💨 9 mph H 94%29.97 inHg

6:00 AM

Moderate rain

70° 💧 0.101 in 💨 9 mph H 95%29.97 inHg

7:00 AM

Light rain

70° 💧 0.060 in 💨 8 mph H 96%29.97 inHg

8:00 AM

Light rain

71° 💧 0.015 in 💨 7 mph H 97%29.97 inHg

9:00 AM

Light rain

72° 💧 0.008 in 💨 8 mph H 97%29.97 inHg

10:00 AM

Overcast

73° 💧 0.001 in 💨 9 mph H 94%30.00 inHg

11:00 AM

Overcast

76° 💧 0.001 in 💨 8 mph H 85%30.00 inHg

12:00 PM

Overcast

77° 💧 None 💨 8 mph H 77%29.97 inHg

1:00 PM

Overcast

78° 💧 None 💨 8 mph H 66%29.97 inHg

2:00 PM

Mostly cloudy

79° 💧 None 💨 9 mph H 59%29.97 inHg

3:00 PM

Partly cloudy

80° 💧 None 💨 8 mph H 58%29.94 inHg

4:00 PM

Mostly sunny

80° 💧 None 💨 8 mph H 59%29.94 inHg

5:00 PM

Sunny

79° 💧 None 💨 8 mph H 60%29.94 inHg

6:00 PM

Mostly sunny

78° 💧 None 💨 6 mph H 67%29.94 inHg

7:00 PM

Mostly sunny

74° 💧 None 💨 6 mph H 75%29.94 inHg

8:00 PM

Mostly clear night

72° 💧 None 💨 6 mph H 79%29.94 inHg

9:00 PM

Mostly cloudy night

70° 💧 None 💨 6 mph H 81%29.94 inHg

10:00 PM

Overcast night

69° 💧 None 💨 6 mph H 78%29.97 inHg

11:00 PM

Overcast night

69° 💧 None 💨 5 mph H 77%29.97 inHg

Thursday

12:00 AM

Overcast night

67° 💧 None 💨 4 mph H 81%29.97 inHg

1:00 AM

Mostly cloudy night

66° 💧 None 💨 4 mph H 85%29.97 inHg

2:00 AM

Partly cloudy night

65° 💧 None 💨 6 mph H 87%29.97 inHg

3:00 AM

Partly cloudy night

64° 💧 None 💨 4 mph H 88%29.97 inHg

4:00 AM

Clear night

63° 💧 None 💨 5 mph H 87%29.97 inHg

5:00 AM

Clear night

62° 💧 None 💨 5 mph H 87%29.97 inHg

6:00 AM

Clear night

61° 💧 None 💨 6 mph H 89%29.97 inHg

7:00 AM

Sunny

61° 💧 None 💨 6 mph H 89%30.00 inHg

8:00 AM

Sunny

63° 💧 None 💨 6 mph H 85%30.00 inHg

9:00 AM

Sunny

66° 💧 None 💨 6 mph H 80%30.03 inHg

10:00 AM

Sunny

69° 💧 None 💨 7 mph H 73%30.03 inHg

11:00 AM

Sunny

71° 💧 None 💨 7 mph H 63%30.03 inHg

12:00 PM

Sunny

72° 💧 None 💨 8 mph H 59%30.00 inHg

1:00 PM

Sunny

73° 💧 None 💨 8 mph H 55%30.00 inHg

2:00 PM

Sunny

73° 💧 None 💨 8 mph H 53%30.00 inHg

3:00 PM

Mostly sunny

74° 💧 None 💨 8 mph H 51%29.97 inHg

4:00 PM

Mostly sunny

73° 💧 None 💨 8 mph H 51%29.97 inHg

5:00 PM

Sunny

73° 💧 None 💨 7 mph H 54%29.97 inHg

6:00 PM

Sunny

71° 💧 None 💨 4 mph H 60%29.97 inHg

7:00 PM

Sunny

68° 💧 None 💨 1 mph H 71%29.97 inHg

10:00 PM

Clear night

62° 💧 None 💨 3 mph H 86%30.00 inHg

Friday

1:00 AM

Clear night

60° 💧 None 💨 4 mph H 88%30.03 inHg

4:00 AM

Clear night

58° 💧 None 💨 4 mph H 89%30.03 inHg

7:00 AM

Sunny

57° 💧 None 💨 4 mph H 90%30.03 inHg

10:00 AM

Mostly sunny

70° 💧 None 💨 7 mph H 71%30.03 inHg

1:00 PM

Sunny

74° 💧 None 💨 10 mph H 58%29.97 inHg

4:00 PM

Mostly sunny

75° 💧 None 💨 10 mph H 55%29.91 inHg

7:00 PM

Mostly sunny

68° 💧 None 💨 6 mph H 70%29.88 inHg

10:00 PM

Mostly clear night

63° 💧 None 💨 7 mph H 73%29.91 inHg

Saturday

1:00 AM

Mostly clear night

62° 💧 None 💨 9 mph H 70%29.88 inHg

4:00 AM

Mostly cloudy night

63° 💧 None 💨 9 mph H 85%29.85 inHg

7:00 AM

Partly cloudy

64° 💧 None 💨 8 mph H 91%29.88 inHg

10:00 AM

Mostly sunny

73° 💧 None 💨 10 mph H 79%29.88 inHg

1:00 PM

Overcast

80° 💧 None 💨 12 mph H 69%29.88 inHg

4:00 PM

Light rain

80° 💧 None 💨 10 mph H 72%29.85 inHg

7:00 PM

Overcast

75° 💧 None 💨 5 mph H 89%29.88 inHg

10:00 PM

Mostly clear night

70° 💧 None 💨 4 mph H 96%29.94 inHg

Sunday

1:00 AM

Partly cloudy night

66° 💧 None 💨 5 mph H 94%30.00 inHg

4:00 AM

Mostly cloudy night

63° 💧 None 💨 8 mph H 88%30.03 inHg

7:00 AM

Mostly cloudy

60° 💧 None 💨 7 mph H 89%30.06 inHg

10:00 AM

Partly cloudy

70° 💧 None 💨 7 mph H 73%30.09 inHg

1:00 PM

Overcast

76° 💧 None 💨 8 mph H 57%30.09 inHg

7:00 PM

Partly cloudy

76° 💧 None 💨 6 mph H 59%30.09 inHg

Monday

1:00 AM

Partly cloudy night

71° 💧 None 💨 10 mph H 74%30.03 inHg

7:00 AM

Mostly cloudy

65° 💧 None 💨 7 mph H 93%30.00 inHg

1:00 PM

Overcast

70° 💧 None 💨 7 mph H 96%29.97 inHg

7:00 PM

Partly cloudy

84° 💧 None 💨 14 mph H 67%29.88 inHg

Tuesday

1:00 AM

Overcast night

81° 💧 None 💨 11 mph H 73%29.80 inHg

7:00 AM

Moderate rain

70° 💧 None 💨 17 mph H 93%29.85 inHg

1:00 PM

Sunny

60° 💧 None 💨 9 mph H 87%30.00 inHg

7:00 PM

Mostly sunny

69° 💧 None 💨 12 mph H 58%30.09 inHg

Wednesday

1:00 AM

Clear night

64° 💧 None 💨 6 mph H 68%30.15 inHg

7:00 AM

Sunny

56° 💧 None 💨 6 mph H 86%30.30 inHg

1:00 PM

Sunny

52° 💧 None 💨 5 mph H 92%30.39 inHg

7:00 PM

Mostly sunny

68° 💧 None 💨 6 mph H 53%30.42 inHg

Thursday

1:00 AM

Partly cloudy night

63° 💧 None 💨 5 mph H 72%30.36 inHg

7:00 AM

Mostly sunny

54° 💧 None 💨 4 mph H 84%30.39 inHg

1:00 PM

Mostly cloudy

55° 💧 None 💨 6 mph H 91%30.39 inHg

7:00 PM

Overcast

71° 💧 None 💨 10 mph H 57%30.33 inHg

Friday

1:00 AM

Overcast night

68° 💧 None 💨 3 mph H 77%30.21 inHg

7:00 AM

Moderate rain

63° 💧 None 💨 5 mph H 93%30.15 inHg

1:00 PM

Overcast

62° 💧 None 💨 8 mph H 93%30.12 inHg

7:00 PM

Partly cloudy

74° 💧 None 💨 2 mph H 69%30.06 inHg

Saturday

1:00 AM

Mostly cloudy night

65° 💧 None 💨 12 mph H 90%30.06 inHg

7:00 AM

Overcast

61° 💧 None 💨 7 mph H 85%30.12 inHg

1:00 PM

Overcast

59° 💧 None 💨 8 mph H 79%30.12 inHg

7:00 PM

Mostly cloudy night

66° 💧 None 💨 4 mph H 62%30.12 inHg

Sunday

1:00 AM

Mostly clear night

61° 💧 None 💨 3 mph H 77%30.06 inHg

7:00 AM

Partly cloudy

56° 💧 None 💨 2 mph H 86%30.06 inHg

1:00 PM

Overcast

54° 💧 None 💨 3 mph H 94%30.06 inHg

7:00 PM

Overcast night

67° 💧 None 💨 7 mph H 75%30.06 inHg

Monday

1:00 AM

Mostly clear night

65° 💧 None 💨 0 mph H 84%30.03 inHg

7:00 AM

Mostly cloudy

59° 💧 None 💨 3 mph H 95%30.09 inHg

1:00 PM

Overcast

56° 💧 None 💨 7 mph H 96%30.12 inHg

7:00 PM

Overcast night

69° 💧 None 💨 10 mph H 63%30.09 inHg

Tuesday

1:00 AM

Clear night

63° 💧 None 💨 9 mph H 75%30.00 inHg

7:00 AM

Sunny

61° 💧 None 💨 8 mph H 83%29.91 inHg

1:00 PM

Mostly sunny

60° 💧 None 💨 6 mph H 86%29.88 inHg

In Jefferson and, more broadly, across the state of Wisconsin: Tonight, skies will remain mostly cloudy, with temperatures settling into the mid-70s. Winds will be moderate from the southeast at around 10 mph, with gusts reaching up to 25 mph. No rain is expected in the coming hours, providing a dry evening. Temperatures will stay mild to warm, making for a comfortable night. The breeze may bring a slight chill at times, but overall, conditions will be fairly pleasant. Keep in mind that the gusty winds could cause some minor outdoor disturbances. Overall, it's a calm and dry night ahead.

15-Day Weather Outlook for Jefferson

TomorrowTomorrow

Light thunderstorms 80°/70° 💧 None 💨 10 mph

Thursday, Sep 10Thu Sep 10

Mostly sunny 74°/61° 💧 None 💨 8 mph

Friday, Sep 11Fri Sep 11

Sunny 76°/57° 💧 0.530 in 💨 9 mph

Saturday, Sep 12Sat Sep 12

Mostly cloudy 79°/65° 💧 None 💨 13 mph

Sunday, Sep 13Sun Sep 13

Partly cloudy 71°/55° 💧 0.127 in 💨 10 mph

Monday, Sep 14Mon Sep 14

Light rain 65°/60° 💧 0.399 in 💨 13 mph

Tuesday, Sep 15Tue Sep 15

Light rain 72°/59° 💧 0.612 in 💨 12 mph

Wednesday, Sep 16Wed Sep 16

Partly cloudy 72°/59° 💧 None 💨 5 mph

Thursday, Sep 17Thu Sep 17

Moderate rain 70°/60° 💧 0.014 in 💨 12 mph

Friday, Sep 18Fri Sep 18

Sunny 63°/47° 💧 None 💨 11 mph

Saturday, Sep 19Sat Sep 19

Mostly sunny 64°/47° 💧 None 💨 8 mph

Sunday, Sep 20Sun Sep 20

Moderate rain 68°/53° 💧 0.031 in 💨 11 mph

Monday, Sep 21Mon Sep 21

Light rain 73°/58° 💧 0.115 in 💨 11 mph

Tuesday, Sep 22Tue Sep 22

Overcast 69°/51° 💧 None 💨 11 mph

Wednesday, Sep 23Wed Sep 23

Sunny 66°/66° 💧 None 💨 9 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Jefferson

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Jefferson

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 4:00 AM

PM2.5 Fine particles Good 7,5µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 8,2µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Good 52,8µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 5,1µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in Jefferson

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 6,7High 😊Good

Tomorrow UV 5,7Moderate 🙂Fair

Thursday UV 5,9Moderate 🙂Fair

Friday UV 6,5High 😐Moderate

Saturday UV 7,0High 🙂Fair

Sunday UV 7,0High —Unavailable

Monday UV 6,0High —Unavailable

Hourly UV index today

7:00 AMUV 0,0 8:00 AMUV 0,5 9:00 AMUV 1,5 10:00 AMUV 3,3 11:00 AMUV 4,8 12:00 PMUV 6,5 1:00 PMUV 6,7 2:00 PMUV 4,8 3:00 PMUV 4,3 4:00 PMUV 2,9 5:00 PMUV 1,4 6:00 PMUV 0,4

Today's weather health advice Open today's recommendations.

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Jefferson

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · JEFFERSON, WISCONSIN

Tonight's Stargazing & Shooting Stars

Local night-sky conditions and meteor activity for Jasper.

42/100Best-hour score

No good viewing window tonight Astronomical darkness exists, but current sky conditions are unfavorable.

☁ Cloud cover 80% Real hourly forecast for the best viewing hour.

☾ Moonlight 13% Waning Crescent · Moon about 6° above the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 79° high at the best hour.

✦ Estimated visible meteors Poor visibility Meteor activity may occur above the clouds, but local viewing conditions are not suitable.

Chance ≥1 meteor in 30 minNot meaningful

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

ACTIVE NOW

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

UPCOMING

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

DISCOVER WEATHER NEARBY Weather in other cities

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Forecast data for Jefferson were last refreshed today at 2:25 AM. The current forecast period extends through 10/09/2026 at 1:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.