What the first answer means
GO means the complete selected selling block is a good measurable weather fit: rain remains below the sale caution limits, and wind, gusts, apparent temperature, UV and severe-weather checks do not force the answer lower. WAIT means the block is mixed or a later complete window is meaningfully better. NOT TODAY means a serious weather signal or poor whole-window fit makes the outdoor plan unreliable.
The first screen stays deliberately simple: verdict, activity, best practical time and one memorable line. Open the supporting details for rain, wind, gust, temperature and UV facts. The same shared calculation is used on this page, in activity rankings, in the natural-language Planner, and when saved routines are checked again.
How the Garage & Yard Sale score works
A garage sale, yard sale or car boot sale is not a one-hour stroll. Setup, signs, stock, tables and shoppers may remain exposed for several hours. GoodDayTo therefore measures apparent temperature, rain probability, predicted precipitation, average wind, gusts, UV, daylight, severe-weather codes and every hour in the duration you choose.
The one-, three- and five-hour controls are real complete-block checks. One hour can cover a short pop-up or collection period, three hours suits many neighbourhood sales, and five hours can cover a longer morning. GoodDayTo does not silently shorten your requested block to manufacture a better score. If the final selected hour turns wet, the earlier dry hours cannot hide it.
- Complete selling block
- Rain probability
- Predicted precipitation
- Apparent temperature
- Wind & gusts
- UV exposure
- Daylight
- Severe-weather signals
Rain limits across the whole selling window
GoodDayTo adds the forecast rain amounts across all selected hours and checks the highest hourly precipitation probability. At least 0.5 mm total rain, or 70% rain probability in any selected hour, caps the result at NOT TODAY (45). At least 0.1 mm, or 40% probability, caps it at WAIT (70). These are conservative planning guardrails for an outdoor sale with exposed stock and signs—not universal cancellation rules.
Probability and amount answer different questions. The National Weather Service defines precipitation probability as the likelihood of a measurable amount at a specific forecast point; it does not mean rain for that percentage of the day or over that percentage of the neighbourhood. GoodDayTo keeps probability and predicted amount separate so uncertainty stays visible. See the official NWS precipitation-probability explanation.
A practical example
Imagine a three-hour sale where 09:00 and 10:00 are mild and dry but 11:00 reaches 72% rain probability. An average can make the block look acceptable even though stock, signs and shoppers may still be outside when rain arrives. The complete-window rule caps that plan at NOT TODAY. A highest hourly probability of 45% would cap it at WAIT. If every selected hour stays below 40%, predicted rain totals below 0.1 mm and other conditions are favourable, the rain rule does not prevent GO.
Wind, temperature and UV still matter
Paper signs, lightweight tables, clothing racks, boxes and temporary canopies can become difficult to manage in gusty weather. The model uses both average wind and gusts rather than treating every dry forecast as suitable. GoodDayTo cannot know the wind rating, anchoring method, condition or manufacturer limits of your canopy, rack or sign. Secure lightweight items and follow the equipment instructions; a weather score never certifies a setup.
Sellers and visitors can spend hours outside, so apparent temperature influences the result. Very hot or cold conditions can lower the score even when it stays dry. UV is also shown because a long exposed morning or afternoon can mean substantial sun exposure. The score cannot see shade from a garage, tree or awning, nor individual age, health, hydration, medication or clothing.
Choose a cooler complete window when possible, provide water and shade, and protect heat-sensitive goods. If local warnings or actual conditions are worse than the forecast, pause the sale and move people and vulnerable stock inside.
Lightning requires a real shelter plan
Thunderstorm signals independently cap the recommendation. The National Weather Service says no place outside is safe when thunderstorms are in the area: when thunder is heard, move immediately to a substantial building or an enclosed metal-topped vehicle, and remain sheltered for at least 30 minutes after the last thunder. Read the official NWS lightning safety guidance.
A tent, gazebo, carport or open garage may keep rain off merchandise but is not a safe lightning refuge. Make a lightning safety plan before opening: decide who watches conditions, how shoppers will be told to leave, where sellers will shelter and how exposed goods can be abandoned safely. GoodDayTo cannot detect an approaching storm between forecast updates or judge evacuation time.
Local Fit and practical checks
Local Fit may show nearby mapped places when that context is useful, but it does not verify that sales are permitted there. GoodDayTo cannot confirm property boundaries, pavement rights, parking, traffic, accessibility, toilets, electricity, opening hours, seller registration, insurance, permits, homeowner-association rules or local signage restrictions.
For a car boot or organised sale, check the operator’s weather policy and setup times. For a home sale, check local rules before placing signs or blocking a pavement. Never use a public road, verge or neighbour’s property based only on a map result. The weather tool is useful with or without any mapped place.
Turnout, pricing and facilities are outside the score
GO does not predict buyers, revenue or a successful event. Turnout can depend on promotion, location, timing, competing events, parking, local habits, stock quality and price. None of those are measured weather factors, and GoodDayTo does not invent them. A dry window can still be a poor business decision; a covered organised market may remain workable in conditions that are unsuitable for exposed tables at home.
Likewise, the tool does not know whether your garage is clear, whether a venue has safe indoor backup space, whether card payments will work or whether toilets and accessible routes are available. Confirm operational details separately.
Better-later behavior and alternatives
If your chosen block is mixed but a later complete selling window scores substantially better, GoodDayTo can return WAIT and show the better option. That compares whole blocks instead of cherry-picking one attractive hour. It is not a promise that the forecast will stay unchanged, so recheck shortly before setup and follow current official warnings.
If moving the sale is impossible, shorten only the time that stock and people are genuinely outside and score that honest duration. Do not select one hour while planning to remain exposed for five. For different outdoor plans, compare Outdoor Market, Outdoor Birthday Party, BBQ & Picnic or Outdoor Dining.
Assumptions and limitations
Forecast inputs are hourly and location based. A small shower can miss the forecast point, and conditions can change after the result loads. GoodDayTo does not measure ground condition, puddles, drainage, air quality, pollen, insects, road safety, stock value, canopy integrity or the condition of electrical equipment.
Use the duration that covers the real selling period, then combine the weather result with current official warnings, site rules and direct observation. GO, WAIT and NOT TODAY are planning guidance, not a guarantee of safety, legality, turnout or sales.
Frequently asked questions
How does GoodDayTo check rain across a garage or yard sale?
Every hour in the selected one-, three- or five-hour selling block is checked. At least 0.5 mm total rain or a 70% hourly probability caps the result at NOT TODAY; at least 0.1 mm or 40% caps it at WAIT.
Which duration should I choose?
Choose one hour for a short pop-up, three hours for a typical sale, or five hours for a longer event. Include every hour when stock, signs, tables or shoppers will be outside.
Can I use this for a car boot sale?
Yes. The same weather check works for a car boot sale, but venue rules, opening times and seller requirements must be checked separately.
Does GO mean many buyers will come?
No. GO describes measured weather fit only. GoodDayTo cannot forecast turnout, sales, footfall, advertising performance or local demand.
Does a canopy make rain and lightning safe?
No. A canopy may protect stock from light rain, but its wind rating and anchoring still matter, and an open-sided canopy is not a safe lightning refuge.
What does WAIT mean for a yard sale?
WAIT means the selected selling block has a caution or a later complete window looks meaningfully better. Shortening or moving the sale may produce a more workable plan.