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Current weather in Merrimac is broken clouds.

Where can I find the hourly weather forecast for Merrimac?

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

Is the weather forecast for Merrimac updated regularly?

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

Now · 9:02 AM

Merrimac Weather & Hourly Forecast

United States · Wisconsin · 53561

52°F

Mostly cloudy

Feels like: 47°F

💧 Humidity 77% 🌡 Pressure 30.36 inHg 💨 Wind 7 mph 👁 Visibility 22.3 mi ☁ Clouds 91% ☀️ UV index 0.1 · Low 🌅 Sunrise 6:44 AM 🌇 Sunset 6:57 PM

Hourly Forecast for Merrimac

Today

10:00 AM

Mostly cloudy

55° 💧 0.007 in 💨 10 mph H 71%30.36 inHg

1:00 PM

Overcast

58° 💧 0.001 in 💨 11 mph H 64%30.36 inHg

4:00 PM

Partly cloudy

61° 💧 None 💨 11 mph H 58%30.33 inHg

7:00 PM

Clear night

55° 💧 None 💨 7 mph H 72%30.33 inHg

10:00 PM

Mostly clear night

51° 💧 None 💨 7 mph H 87%30.39 inHg

Tomorrow

1:00 AM

Clear night

50° 💧 None 💨 6 mph H 94%30.39 inHg

4:00 AM

Mostly cloudy night

48° 💧 None 💨 5 mph H 96%30.39 inHg

7:00 AM

Mostly sunny

50° 💧 None 💨 7 mph H 94%30.42 inHg

10:00 AM

Overcast

56° 💧 None 💨 9 mph H 82%30.45 inHg

1:00 PM

Overcast

63° 💧 0.001 in 💨 9 mph H 65%30.42 inHg

4:00 PM

Overcast

63° 💧 0.001 in 💨 8 mph H 68%30.36 inHg

7:00 PM

Mostly clear night

58° 💧 None 💨 4 mph H 83%30.36 inHg

10:00 PM

Clear night

54° 💧 None 💨 6 mph H 91%30.39 inHg

Thursday

1:00 AM

Mostly clear night

52° 💧 None 💨 5 mph H 94%30.39 inHg

4:00 AM

Mostly cloudy night

51° 💧 None 💨 4 mph H 97%30.36 inHg

7:00 AM

Partly cloudy

50° 💧 None 💨 3 mph H 97%30.36 inHg

Today

10:00 AM

Mostly cloudy

55° 💧 0.000 in 💨 10 mph H 71%30.36 inHg

11:00 AM

Light rain

56° 💧 0.005 in 💨 11 mph H 69%30.36 inHg

12:00 PM

Overcast

57° 💧 0.002 in 💨 11 mph H 68%30.39 inHg

1:00 PM

Overcast

58° 💧 0.001 in 💨 11 mph H 64%30.36 inHg

2:00 PM

Overcast

59° 💧 None 💨 11 mph H 62%30.36 inHg

3:00 PM

Overcast

60° 💧 None 💨 10 mph H 60%30.33 inHg

4:00 PM

Partly cloudy

61° 💧 None 💨 11 mph H 58%30.33 inHg

5:00 PM

Mostly sunny

60° 💧 None 💨 11 mph H 58%30.33 inHg

6:00 PM

Sunny

58° 💧 None 💨 8 mph H 65%30.33 inHg

7:00 PM

Clear night

55° 💧 None 💨 7 mph H 72%30.33 inHg

8:00 PM

Clear night

53° 💧 None 💨 6 mph H 78%30.36 inHg

9:00 PM

Clear night

51° 💧 None 💨 6 mph H 85%30.36 inHg

10:00 PM

Mostly clear night

51° 💧 None 💨 7 mph H 87%30.39 inHg

11:00 PM

Overcast night

50° 💧 None 💨 7 mph H 89%30.39 inHg

Tomorrow

12:00 AM

Partly cloudy night

50° 💧 None 💨 7 mph H 91%30.39 inHg

1:00 AM

Clear night

50° 💧 None 💨 6 mph H 94%30.39 inHg

2:00 AM

Clear night

49° 💧 None 💨 6 mph H 97%30.39 inHg

3:00 AM

Clear night

48° 💧 None 💨 5 mph H 97%30.39 inHg

4:00 AM

Mostly cloudy night

48° 💧 None 💨 5 mph H 96%30.39 inHg

5:00 AM

Overcast night

48° 💧 None 💨 5 mph H 95%30.39 inHg

6:00 AM

Mostly cloudy night

50° 💧 None 💨 6 mph H 93%30.42 inHg

7:00 AM

Mostly sunny

50° 💧 None 💨 7 mph H 94%30.42 inHg

8:00 AM

Mostly cloudy

52° 💧 None 💨 7 mph H 92%30.42 inHg

9:00 AM

Overcast

54° 💧 None 💨 7 mph H 87%30.45 inHg

10:00 AM

Overcast

56° 💧 None 💨 9 mph H 82%30.45 inHg

11:00 AM

Mostly cloudy

58° 💧 None 💨 9 mph H 74%30.45 inHg

12:00 PM

Mostly cloudy

61° 💧 None 💨 10 mph H 65%30.42 inHg

1:00 PM

Overcast

63° 💧 None 💨 9 mph H 65%30.42 inHg

2:00 PM

Overcast

63° 💧 None 💨 8 mph H 66%30.39 inHg

3:00 PM

Overcast

63° 💧 0.001 in 💨 8 mph H 67%30.39 inHg

4:00 PM

Overcast

63° 💧 0.001 in 💨 8 mph H 68%30.36 inHg

5:00 PM

Partly cloudy

63° 💧 None 💨 8 mph H 68%30.36 inHg

6:00 PM

Sunny

61° 💧 None 💨 5 mph H 74%30.36 inHg

7:00 PM

Mostly clear night

58° 💧 None 💨 4 mph H 83%30.36 inHg

8:00 PM

Clear night

57° 💧 None 💨 6 mph H 86%30.39 inHg

9:00 PM

Clear night

55° 💧 None 💨 5 mph H 89%30.39 inHg

10:00 PM

Clear night

54° 💧 None 💨 6 mph H 91%30.39 inHg

11:00 PM

Clear night

53° 💧 None 💨 5 mph H 92%30.39 inHg

Thursday

12:00 AM

Mostly clear night

52° 💧 None 💨 4 mph H 93%30.39 inHg

1:00 AM

Mostly clear night

52° 💧 None 💨 5 mph H 94%30.39 inHg

2:00 AM

Mostly cloudy night

51° 💧 None 💨 5 mph H 96%30.36 inHg

3:00 AM

Overcast night

51° 💧 None 💨 4 mph H 96%30.36 inHg

4:00 AM

Mostly cloudy night

51° 💧 None 💨 4 mph H 97%30.36 inHg

5:00 AM

Partly cloudy night

51° 💧 None 💨 4 mph H 96%30.36 inHg

6:00 AM

Mostly cloudy night

50° 💧 None 💨 3 mph H 96%30.36 inHg

7:00 AM

Partly cloudy

50° 💧 None 💨 3 mph H 97%30.36 inHg

8:00 AM

Partly cloudy

53° 💧 None 💨 6 mph H 95%30.36 inHg

9:00 AM

Partly cloudy

57° 💧 None 💨 5 mph H 89%30.36 inHg

10:00 AM

Mostly cloudy

60° 💧 None 💨 5 mph H 81%30.36 inHg

11:00 AM

Overcast

63° 💧 None 💨 6 mph H 73%30.36 inHg

12:00 PM

Overcast

64° 💧 None 💨 6 mph H 68%30.36 inHg

1:00 PM

Overcast

66° 💧 None 💨 7 mph H 63%30.33 inHg

2:00 PM

Overcast

66° 💧 None 💨 6 mph H 61%30.30 inHg

3:00 PM

Overcast

67° 💧 None 💨 5 mph H 60%30.30 inHg

4:00 PM

Overcast

67° 💧 None 💨 6 mph H 61%30.27 inHg

5:00 PM

Overcast

66° 💧 None 💨 6 mph H 64%30.27 inHg

6:00 PM

Overcast

64° 💧 None 💨 5 mph H 71%30.27 inHg

7:00 PM

Mostly cloudy night

61° 💧 None 💨 4 mph H 80%30.27 inHg

Friday

4:00 AM

Partly cloudy night

50° 💧 None 💨 3 mph H 97%30.33 inHg

7:00 AM

Overcast

49° 💧 None 💨 3 mph H 97%30.33 inHg

10:00 AM

Overcast

60° 💧 None 💨 5 mph H 77%30.36 inHg

1:00 PM

Mostly sunny

66° 💧 None 💨 8 mph H 56%30.33 inHg

4:00 PM

Mostly cloudy

67° 💧 None 💨 7 mph H 58%30.27 inHg

7:00 PM

Mostly cloudy night

59° 💧 None 💨 4 mph H 81%30.24 inHg

10:00 PM

Overcast night

55° 💧 None 💨 7 mph H 84%30.27 inHg

Saturday

1:00 AM

Mostly cloudy night

51° 💧 None 💨 5 mph H 91%30.27 inHg

4:00 AM

Overcast night

51° 💧 None 💨 6 mph H 92%30.24 inHg

7:00 AM

Partly cloudy

50° 💧 None 💨 5 mph H 93%30.24 inHg

10:00 AM

Mostly cloudy

60° 💧 None 💨 9 mph H 74%30.21 inHg

1:00 PM

Overcast

65° 💧 None 💨 10 mph H 63%30.18 inHg

4:00 PM

Overcast

65° 💧 None 💨 8 mph H 66%30.12 inHg

7:00 PM

Light rain

61° 💧 None 💨 5 mph H 79%30.12 inHg

10:00 PM

Overcast night

58° 💧 None 💨 6 mph H 95%30.12 inHg

Sunday

1:00 AM

Moderate rain

57° 💧 None 💨 6 mph H 96%30.12 inHg

4:00 AM

Light rain

57° 💧 None 💨 5 mph H 97%30.09 inHg

7:00 AM

Overcast

57° 💧 None 💨 6 mph H 98%30.09 inHg

10:00 AM

Overcast

59° 💧 None 💨 6 mph H 90%30.12 inHg

1:00 PM

Overcast

66° 💧 None 💨 5 mph H 74%30.09 inHg

4:00 PM

Mostly cloudy

67° 💧 None 💨 5 mph H 72%30.03 inHg

7:00 PM

Overcast night

64° 💧 None 💨 4 mph H 85%30.03 inHg

10:00 PM

Overcast night

62° 💧 None 💨 3 mph H 90%30.03 inHg

Monday

1:00 AM

Overcast night

61° 💧 None 💨 2 mph H 93%30.03 inHg

7:00 AM

Mostly cloudy

59° 💧 None 💨 2 mph H 87%30.03 inHg

1:00 PM

Overcast

58° 💧 None 💨 2 mph H 90%30.03 inHg

7:00 PM

Overcast night

68° 💧 None 💨 3 mph H 67%30.00 inHg

Tuesday

1:00 AM

Overcast night

66° 💧 None 💨 1 mph H 82%29.97 inHg

7:00 AM

Mostly sunny

58° 💧 None 💨 1 mph H 88%29.97 inHg

1:00 PM

Mostly sunny

54° 💧 None 💨 3 mph H 96%30.00 inHg

7:00 PM

Partly cloudy night

72° 💧 None 💨 6 mph H 64%29.97 inHg

Wednesday

1:00 AM

Clear night

64° 💧 None 💨 4 mph H 84%29.97 inHg

7:00 AM

Mostly sunny

57° 💧 None 💨 4 mph H 92%30.00 inHg

1:00 PM

Mostly cloudy

52° 💧 None 💨 3 mph H 95%30.06 inHg

7:00 PM

Overcast night

71° 💧 None 💨 7 mph H 60%30.06 inHg

Thursday

1:00 AM

Overcast night

65° 💧 None 💨 4 mph H 82%30.06 inHg

7:00 AM

Overcast

61° 💧 None 💨 5 mph H 89%30.12 inHg

1:00 PM

Overcast

61° 💧 None 💨 5 mph H 96%30.12 inHg

7:00 PM

Overcast night

72° 💧 None 💨 7 mph H 68%30.12 inHg

Friday

1:00 AM

Overcast night

68° 💧 None 💨 7 mph H 77%30.09 inHg

7:00 AM

Overcast

65° 💧 None 💨 8 mph H 83%30.12 inHg

1:00 PM

Overcast

63° 💧 None 💨 8 mph H 80%30.12 inHg

7:00 PM

Mostly clear night

78° 💧 None 💨 8 mph H 57%30.09 inHg

Saturday

1:00 AM

Clear night

71° 💧 None 💨 6 mph H 80%30.03 inHg

7:00 AM

Sunny

66° 💧 None 💨 7 mph H 85%30.03 inHg

1:00 PM

Sunny

62° 💧 None 💨 6 mph H 82%30.03 inHg

7:00 PM

Clear night

80° 💧 None 💨 8 mph H 56%30.00 inHg

Sunday

1:00 AM

Overcast night

74° 💧 None 💨 7 mph H 72%29.91 inHg

7:00 AM

Light rain

64° 💧 None 💨 12 mph H 96%29.85 inHg

1:00 PM

Overcast

67° 💧 None 💨 9 mph H 99%29.83 inHg

7:00 PM

Partly cloudy night

66° 💧 None 💨 14 mph H 63%29.94 inHg

Monday

1:00 AM

Clear night

57° 💧 None 💨 7 mph H 65%30.09 inHg

7:00 AM

Mostly cloudy

49° 💧 None 💨 4 mph H 79%30.21 inHg

1:00 PM

Partly cloudy

45° 💧 None 💨 4 mph H 87%30.27 inHg

7:00 PM

Partly cloudy night

61° 💧 None 💨 2 mph H 50%30.27 inHg

Tuesday

1:00 AM

Overcast night

54° 💧 None 💨 2 mph H 72%30.18 inHg

7:00 AM

Overcast night

52° 💧 None 💨 2 mph H 84%30.18 inHg

1:00 PM

Overcast

51° 💧 None 💨 2 mph H 89%30.15 inHg

7:00 PM

Mostly cloudy night

61° 💧 None 💨 3 mph H 53%30.12 inHg

Wednesday

1:00 AM

Clear night

56° 💧 None 💨 5 mph H 69%30.03 inHg

In Merrimac and, more broadly, across the state of Wisconsin: This morning will begin with mostly cloudy skies and cool temperatures ranging from 49 to 58 degrees Fahrenheit. The wind will be coming from the east at a moderate pace, reaching up to 12 mph, with gusts that could hit around 25 mph. As the day progresses into the afternoon, skies will remain mostly cloudy, but no precipitation is expected, keeping conditions dry. Temperatures are expected to stay steady within the same cool range, with wind speeds continuing from the east at similar levels. Overall, it will be a cool and breezy day with mostly cloudy skies and no significant weather concerns.

15-Day Weather Outlook for Merrimac

TomorrowTomorrow

Partly cloudy 63°/48° 💧 None 💨 10 mph

Thursday, Sep 24Thu Sep 24

Mostly sunny 67°/50° 💧 0.061 in 💨 7 mph

Friday, Sep 25Fri Sep 25

Mostly cloudy 67°/49° 💧 0.001 in 💨 7 mph

Saturday, Sep 26Sat Sep 26

Mostly cloudy 67°/51° 💧 None 💨 8 mph

Sunday, Sep 27Sun Sep 27

Overcast 67°/55° 💧 0.098 in 💨 4 mph

Monday, Sep 28Mon Sep 28

Mostly cloudy 68°/58° 💧 None 💨 3 mph

Tuesday, Sep 29Tue Sep 29

Mostly sunny 72°/54° 💧 None 💨 6 mph

Wednesday, Sep 30Wed Sep 30

Mostly sunny 71°/52° 💧 None 💨 7 mph

Thursday, Oct 1Thu Oct 1

Overcast 72°/61° 💧 0.001 in 💨 7 mph

Friday, Oct 2Fri Oct 2

Overcast 78°/63° 💧 None 💨 8 mph

Saturday, Oct 3Sat Oct 3

Overcast 80°/62° 💧 None 💨 8 mph

Sunday, Oct 4Sun Oct 4

Light rain 67°/57° 💧 0.245 in 💨 14 mph

Monday, Oct 5Mon Oct 5

Mostly cloudy 61°/45° 💧 None 💨 4 mph

Tuesday, Oct 6Tue Oct 6

Overcast 61°/51° 💧 0.008 in 💨 5 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Merrimac

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Merrimac

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 10:00 AM

PM2.5 Fine particles Good 0,6µg/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 0,7µg/m³

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

O₃ Ozone Good 56,1µg/m³

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

NO₂ Nitrogen dioxide Good 2,8µg/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 Merrimac

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 4,1Moderate 😊Good

Tomorrow UV 5,2Moderate 🙂Fair

Thursday UV 4,4Moderate 🙂Fair

Friday UV 0,8Low 🙂Fair

Saturday UV 3,0Moderate 🙂Fair

Sunday UV 3,0Moderate —Unavailable

Monday UV 6,0High —Unavailable

Hourly UV index today

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

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

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

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 Merrimac

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · MERRIMAC, WISCONSIN

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 1:00 AM–2:00 AM.

91/100Best-hour score

BEST TIME TONIGHT 1:00 AM–2:00 AM Astronomical darkness: 8:32 PM–5:11 AM

☁ Cloud cover 0% Real hourly forecast for the best viewing hour.

☾ Moonlight 88% Waxing Gibbous · Moon about 19° above the horizon at the best viewing hour.

☄ Meteor activity Southern Taurids Reference ZHR 7 · Radiant 39° high at the best hour.

✦ Estimated visible meteors 0–2/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min36%

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

SEP 20–NOV 20

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

ACTIVE NOW

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

NOV 6–NOV 30

LeonidsStart NOV 6 · Peak NOV 17 · End NOV 30 · ZHR 15 · 52% 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 Merrimac were last refreshed today at 9:02 AM. The current forecast period extends through 24/09/2026 at 7:00 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.