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Tomah, WI Weather
Current conditions
Forecast for this hour (no station report in the last two hours)
Forecast
10-day-
This Afternoon
Sunny. High near 69, with temperatures falling to around 67 in the afternoon. Southeast wind around 5 mph.
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Tonight
Clear, with a low around 43. South wind around 2 mph.
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Wednesday
Sunny. High near 71, with temperatures falling to around 69 in the afternoon. Southwest wind around 2 mph.
National Weather Service forecast updated 5 hrs ago.
Hourly
Hourly forecast- Now67°
- 6 PM61°
- 7 PM56°
- 8 PM50°
- 9 PM49°
- 10 PM48°
- 11 PM45°
- Wed12 AM45°
- 1 AM45°
- 2 AM44°
- 3 AM44°
- 4 AM43°
- 5 AM44°
- 6 AM44°
- 7 AM44°
- 8 AM45°
- 9 AM51°
- 10 AM56°
- 11 AM62°
- 12 PM65°
- 1 PM69°
- 2 PM70°
- 3 PM71°
- 4 PM71°
10-day forecast
Details- TodayOct 20Sunny43°69°
- WedOct 21Sunny44°71°
- ThuOct 22Patchy Fog then Mostly Sunny48°71°
- FriOct 23Mostly Sunny51°69°
- SatOct 24Partly Sunny52°68°
- SunOct 25Partly Sunny15%43°66°
- MonOct 26Slight Chance Rain Showers16%38°60°
- TueOct 27Partly cloudy33°49°
- WedOct 28Sunny35°54°
- ThuOct 29Partly cloudy35°47°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
Radar
Full mapWeather news near Tomah
More weather news-
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Air quality
Air quality is satisfactory, and air pollution poses little or no risk.
Forecast
- TueGood
- WedGood
- ThuGood
Driftless Area North, WI reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Almanac
MonthlyMather 3 Nw, records since 1903. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
- Onalaska 59 km
- Sparta 25 km
- West Salem 47 km
- Mauston 40 km
- Viroqua 56 km
- Black River Falls 45 km
- New Lisbon 29 km
- Westby 45 km
Forecasters' discussion
From the National Weather Service office in ARX, issued 11 hrs ago
Key Messages
- Unseasonably warm into the weekend.
- Dry through Thursday night and then maybe some small rain chances from Friday into the weekend.
- Much uncertainty on temperatures and rain chances early next week.
Discussion
Issued at 1146 PM CDT Mon Oct 19 2026
Today through Thursday night
An anomalous 500 mb ridge will remain in control of the area's weather through Thursday night. This high will provide dry weather and unseasonably warm temperatures. High temperatures will warm from the mid- and upper 60s today and be in the lower and mid-70s on Thursday. Low temperatures will be in the 30s and 40s tonight and Wednesday night and in the 40s and 50s on Thursday night.
Friday and Friday night
A negatively tilted trough will move through Minnesota and western and northern Wisconsin. There is still plenty of uncertainty on whether there will be enough low-level moisture for any rain to move into our area.
With some more cover, high temperatures will be a bit cooler (mainly in the 60s). Low temperatures will be a bit warmer (upper 40s to mid-50s).
Aviation
Issued at 600 AM CDT Tue Oct 20 2026
Valley fog has developed overnight and is currently impacting ONA/PDC/OVS with issues seen on all side of LSE but seemingly not within 5 nautical miles. In any case, still prudent to carry a TEMPO at LSE given how close the issues are to impacting the terminal. Once the fog dissipates around 14-15z, VFR conditions will return. Fog may develop once again Wednesday morning primarily impacting the Wisconsin River valley and OVS while low level winds may be too strong for this to impact LSE once again so have kept it out of the TAF near the end of the period.
Arx Watches
WI...None. MN...None. IA...None.
Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.