Honestly, if you've ever spent a winter in Monroe County, you know that a "simple" forecast is basically a myth. People look at a weather forecast for Tomah WI and think they’re just seeing numbers, but there’s a whole lot of local weirdness—from the way the wind whips across the open cranberry bogs to that specific "Tomah fog"—that makes this corner of Wisconsin a unique beast to track.
Right now, as of mid-January 2026, we're staring down a classic Badger State stretch. It's cloudy. It's cold. And if you’re planning to head out on I-94, you’re going to want to pay attention to the shift happening tonight.
The Immediate Outlook: Snow is Creeping In
Today started off with a bite. We’re sitting at 23°F right now, but with that 11 mph wind coming out of the south, it feels more like 12°F. You’ve probably noticed the sky is a solid, stubborn gray. That’s because the humidity is climbing toward 48%, prepping the atmosphere for the snow we’re expecting later.
Here is the deal for the next 24 hours:
- Tonight: The clouds aren't going anywhere. We’re looking at a 40% chance of snow after dark. It’s not a blizzard, but with a low of 7°F, whatever falls is going to stick and stay slick.
- Friday (Tomorrow): Expect a high of 30°F. Sounds warmer, right? Well, the wind is kicking up to 16 mph from the west, and the humidity is spiking to 92%. We’re looking at snow showers throughout the day and night.
Basically, the commute tomorrow morning is going to be a mess. If you're heading toward the VA or just grabbing coffee downtown, give yourself an extra ten minutes.
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Why Tomah Weather is Such a Moving Target
It’s easy to pull up a 10-day forecast and assume it’s gospel. But Tomah sits in a bit of a topographical "sweet spot" (or sour spot, depending on how much you hate shoveling).
We’re right on the edge of the Driftless Area. This means weather systems coming across the Mississippi River near La Crosse sometimes hit the flatter terrain of Monroe County and just... stall. Or they intensify. The National Weather Service in La Crosse often points out how these subtle elevation changes can mean the difference between three inches of powder and a dusting that melts by noon.
The Deep Freeze is Coming
If you think the 27°F high today is cold, brace yourself. By Sunday, the high only hits 14°F, and the low is going to bottom out at -8°F.
Monday is when things get genuinely surreal. We’re forecasting a high of 0°F. Not "around" zero, but a flat-out zero. With 16 mph winds, the wind chill is going to be dangerous. Honestly, that’s "stay inside and make a pot of chili" weather.
Snow Totals and Travel Risks
What’s interesting about this current January 2026 pattern is the consistency. We aren't getting one massive "Snowmageddon" dump. Instead, it's a "nickel and dime" situation.
- Thursday night: Light accumulation.
- Friday: Persistent snow showers (35% chance).
- Saturday: More snow showers (25% chance) with a high of only 16°F.
This kind of weather is actually more dangerous for drivers than a big storm because people get complacent. The "black ice" risk on Highway 21 and the interstates is going to be high through the weekend.
Expert Tip: The Humidity Factor
Most people ignore the humidity percentage in winter, but in Tomah, it matters. Tomorrow’s 92% humidity combined with freezing temps means "heavy" snow. This isn't the light, fluffy stuff you can clear with a leaf blower. This is the heart-attack snow. If you've got a long driveway, make sure the snowblower is gassed up today while it’s still relatively dry out.
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Actionable Steps for the Next 48 Hours
- Check your tires now. With temperatures dropping to -8°F by Sunday, your tire pressure is going to plummet. Fill them up today while it's 23°F.
- Salt the walkways before tonight. Since there's a 40% chance of snow tonight followed by 35% tomorrow, a base layer of salt will prevent that bottom layer from turning into an ice sheet.
- Plan for Monday's "Zero." If you have outdoor pets or livestock, Monday's high of 0°F is the real threat. Ensure water heaters are working and bedding is dry before the weekend is over.
- Watch the West Wind. Friday’s wind is coming from the west at 16 mph. If you’re traveling north-south, expect some significant drifting on those open stretches of road outside the city limits.
The weather forecast for Tomah WI shows we’re moving from a "chilly and gray" phase into a "dangerously cold and snowy" phase. Stay smart, keep the tank at least half full, and maybe find a good book for Monday.