Yes, we are open!  Thank you for supporting small business.  Be safe!
La Crosse Technology V21-WTH

La Crosse Technology V21-WTH

Wireless Wi-Fi Color Weather Station w/ Wind Speed
Model: V21-WTH
Our Price: $109.95
In Stock - Expected To Ship On or before Tomorrow, 01/22/2021
See Cart for Delivery Date & Shipping Options
Sensor Enclosure (Recommended) Help Me DecideHelp Me Decide


Share This Item:

Free Shipping for Continental U.S. orders over $50
30-day Satisfaction Guarantee



The La Crosse Technology V21-WTH Wireless Wi-Fi Color Weather Station with wind speed provides real-time weather data straight from your backyard. The weather station can function as a stand alone station or with the La Crosse View™ App you may remotely access the weather station's data from a mobile device. The App enables you to receive alerts and push notifications when user-defined values go above or fall below the desired range.

The La Crosse Technology V21-WTH monitors the indoor and outdoor temperature/humidity, dew point and wind speed. Additionally, when connected to your Wi-Fi; the station will receive National Weather Service (NWS)* forecasts, daily chance of precipitation, daily forecasted highs/lows and prevailing wind direction for the day.

The La Crosse Technology V21-WTH features a manual set clock or when connected to Wi-Fi, the weather station will sync with the National Institues of Standards and Time (NIST)* twice per day.

  • Time (set manually or by NIST with Wi-Fi connection)
  • Manual set date (month, day, year and day of week)
  • Indoor/outdoor temperature with daily HI/LO (ºF or ºC)
  • Indoor/outdoor humidity with daily HI/LO (%RH)
  • HI/LO records with time stamp
  • "Feels Like" temperature with daily HI/LO (ºF or ºC)
  • Outdoor dew point (ºF or ºC)
  • Wind speed with history (hour, 24 hours, 7 days, current month and year)
  • Forecast icon (sunny, partly sunny, clouds, rain, t-storm and snow)
  • Seasonal changes in foliage
  • Programmable alerts for temperature and humidity
  • Indoor/outdoor temperature & humidity trend arrows (rising or falling)
  • NWS chance of precipitation*
  • NWS forecasted HI/LO for the day*
  • NWS additional forecast icons (windy, light rain, severe t-storm, light Snow, wintry mix, blizzard, fog and ice)*
  • NWS wind direction*
  • View Data Stream (VDS) technology (NWS weather information and personal messages)*
  • Low battery icon
  • Signal strength icon for sensor transmission
  • Wi-Fi connection icon
  • 12 or 24 hour time mode
  • Illuminated color display with five different backlight settings (0% | 3% | 20% | 50% | 100%). When display is powered with the included AC adapter, the backlight can be configured to remain on continuously. When powered by batteries, the backlight will remain on momentarily for 10 seconds at 100% when the LIGHT button is pressed
  • Tabletop or wall-mountable design
  • Limited one (1) year warranty

* NWS Data based on the Zip Code location, NIST Data based on the Time Zone entered. Wi-Fi required.

  • Remotely view sensor data on your mobile device anytime/anywhere
  • View and track history with detailed graphs
  • Share weather data with family and friends
  • Receive mobile alerts and push notifications

  • Indoor temp range: 32.0 to 122.0°F (0 to 50°C)
  • Outdoor temp range: -40.0 to 140.0°F (-40.0 to 60.0°C)
  • Humidity range: 10%-99% (RH)
  • Wind speed range: 0-111 mph (0-178 kmh)
  • Power requirements (console): AC Adapter with 3 AA alkaline batteries for backup
  • Power requirements (thermo-hygro sensor): 2 AA alkaline batteries**
  • Power requirements (wind speed sensor): 2 C alkaline batteries**
  • Battery life (console): up to 5 years with AC adapter in use
  • Battery life (thermo-hygro sensor): over 2 years with reputable batteries
  • Battery life (wind speed sensor): over 1 year with reputable batteries
  • Transmission Frequency: 915 MHz
  • Transmission Range: Up to 400 feet open air
  • WiFi Range: 80 feet (24 meters) RF 2.4 GHz (802.11 b/g/n)

** Lithium batteries recommended for temperatures below -4°F/-20ºC

  • Mobile device with 2.4GHz (802.11 b/g/n) Wi-Fi band
  • High speed Internet service and router with wireless WiFi
  • Included AC adapter for weather station is required for Wi-Fi connection
  • IOS requirements: iOS 9.0 (or higher) with cellular or Wi-Fi service
  • Android requirements: OS 5.0 (or higher) with cellular or Wi-Fi service

La Crosse View™ App Downloads:

Apple Store DownloadGoogle Play Download

  • Console: 8.98" x 1.0" x 5.43" (228mm x 25mm x 138mm)
  • Thermo-Hygro Sensor: 1.97" x 0.75" x 5.73" (50mm x 19mm x 146mm)
  • Wind Speed Sensor: 7.10" x 7.10" x 18.57" (180mm x 180mm x 472mm)


Average Customer Rating 4.4 4.5 stars (based on 12 reviews)

Displaying reviews 1-10 of 12
By Rick
From St ignace, MI
5 stars Weather station
Very nice product, really needs to be plugged into 110 volt to see what a great product it is. Nice bright display, easy to read, I would recommend highly if your looking for a very nice home weather station
By Carl
From Georgetown, TX
3 stars Weather info is good but screen not up to par
The screen must be old technology as it is impossible to read at any angle, especially any distance. Indoor temp is hard to see even straight on at a yard or greater away.
By Joe
From Whitefield, NH
2 stars Interesting, but disappointing
WeatherShack delivery excellent, product arrived on time with no issues! Oh the product, nicely packed and clean and crisp...then, once your expectations are heightened the downfall begins...WiFi, completely has to be 2.4g only, could not handle dual...Day light day savings, time zone, zip code, or anything dealing with NST is a joke, weather forecasting useless...
By John
From Creedmoor, NC
4 stars Nice display
I prefer the display on this unit compared to a prior one I had. The range from the main instrument to receiver is great. Still haven't been able to get the unit to sink to my smart phone
By Scott
4 stars Works well.
I have had this item working for a week or so now. Had to move the outside temp sensor to a different location around the house and now it is very, very close to the same temperature as found on our local news station. The wind speed indicator also works well. Was easy to set up the wi-fi. I really like the color screen. It is very easy to read and find the information you are looking for quickly.
From Halethorpe, MD
5 stars Bright color display also makes a great night light
I've not installed the anemometer yet but so far the display seems to make sense. No complaints, will need to wait until the dog knocks it off the table a few times to let you know. :-)
By Josh
From Stevensville, MT
5 stars Great product
Accurate and easy to read!
By Pat
From spokane, WA
5 stars Wind
Very nice accurate weather station
By Dave
From Alexandria, VA
5 stars V21-WTH Weather Station
I have this weather station set up as a standalone station and it gives me all the information I need for monitoring the outside weather conditions, maybe in the future I'll connect it to the Wi-Fi. I have the Wind Speed Sensor LTV-W1 mounted on the highest part on my roof. From what I notice the Wind Speed Sensor transmits wind speed information to the base station every 30 seconds. My only wish is that it transmits every 10 – 15 seconds, but otherwise very happy with this purchase.
By Robert
From West Haven, CT
5 stars Lacrosse v21
V21 is a beautiful weather station that gives all the info you need. Works great and fast delivery from weather shack


Accessories for your La Crosse Technology V21-WTH
Product Title
La Crosse Technology 925-1418
Sensor Weather Shield
Our Price: $17.95
Why Shop with 60 Day Guarantee
Why Shop with Why Shop with Staff Note Staff Note

Our Customers Say