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Merrimac, WI Weather Conditions

Updated: Sun Mar 8th 2026 11:00 AM CDT

Sunny

45^°F 7^°C

Feels Like 38^°F / 4^°C

Merrimac, WI weather condition is Sunny and 45°F.

Today's Weather in Merrimac,WI

The current weather in Merrimac WI as of 11:00 AM CDT on Sun Mar 8th 2026, has a sky condition of Sunny with the visibility of 9 mile(s) and the UV index at 1.9. It is 45 degrees fahrenheit but feels like 38 degrees. The barometric pressure is 29.72 - measured by inches of mercury - and is falling since its last observation. The humidity is 60 percent that's falling since the last report, with a dew point of 37 degrees fahrenheit which is rising. Wind direction is from the West at 13.6 miles per hour, gusting at 17.8 miles per hour. Sunrise was at 6:23 AM and Sunset is at 5:57 PM. The moon phase is a Waning Gibbous moon rising at 11:58 PM. Thank you for listening to the weather report from LocalConditions.com!

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Sun & Moon

Sun

Sunrise: 6:23 AM

Sunset: 5:57 PM

As of:

Moon

Moonrise: 11:58 PM

Moonset: 8:18 AM

Phase: Waning Gibbous Moon

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Hourly Forecast - Next 8 hours

Next 5 Days...

Sunny

Sunny with a high of 64°F and a low of 42°F. Winds will be moderate, blowing around 17mph. The humidity will be on the higher side, reaching around 72%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 64° \| Lo 42°	72%	0%	0%	17 mph

Moderate Rain

Moderate Rain with a high of 37°F and a low of 31°F. Probable rainfall forecasted, having an 87% chance with an estimated 0.24in. Possible light Snowfall with an 8% chance but not having significate accumulation. Winds will be moderate, blowing around 19mph. The humidity will be on the higher side, reaching around 74%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 37° \| Lo 31°	74%	87% \| est. 0.24in	8%	19 mph

Heavy Snow

Heavy Snow with a high of 29°F and a low of 24°F. Probable rainfall forecasted, having a 71% chance with an estimated 0.34in. Snowfall has a likely chance of 61% with an estimated accumulation of 1.1in. Winds will be moderate, blowing around 18mph. Expect high humidity with levels above 80% to 91%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 29° \| Lo 24°	91%	71% \| est. 0.34in	61% \| est. 1.1in	17.2 mph

Light Freezing Rain

Light Freezing Rain with a high of 32°F and a low of 19°F. Probable rainfall forecasted, having a 67% chance with an estimated 0.02in. Possible light Snowfall with a 16% chance estimated at 0.1in accumulation. Winds will be moderate, blowing around 18mph. The humidity will be on the higher side, reaching around 72%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 32° \| Lo 19°	72%	67% \| est. 0.02in	16% \| est. 0.1in	17.2 mph

Scattered Rain

Scattered Rain with a high of 45°F and a low of 32°F. Probable rainfall forecasted, having a 79% chance with an estimated 0.01in. Winds will be strong at speeds peaking at 21mph. The humidity will be on the higher side, reaching around 66%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 45° \| Lo 32°	66%	79% \| est. 0.01in	0%	20.4 mph

Yesterday 5-Day Wind

Weather Radar Map

Live Merrimac, WI weather with minute-by-minute precipitation, radar, barometric pressure, temperatures and wind speeds for today thru Thursday, as you toggle through each map layer. Use the slider to move forward and back in time to view how current data and forecasts will affect the region; you can press or click on the map to show metrics available for each tab. The related timestamp is located above the Play button which will animate the weather forecast.

Hourly Temperature

The current temperature today is 45^°F. The morning temperature of 32°^F is lowest at 12am with the daytime high of 55°^F at 4pm and a low around 45°^F at 11am is expected.

Hourly Barometric Pressure

The highest pressure today is 29.96^inHg at 12am and lowest being 29.66^inHg at 7pm.

Hourly Wind Speeds

The fastest wind is reported to be 16.3^mph at 7am, while the slowest is 6.9^mph around 12am; expect wind gusts peaking 28.1^mph at 7am. View live wind conditions in Merrimac

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