Plan two weeks ahead with the daily outlook for any city — highs, lows, and rain chances.
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🔍 Check 14-Day Forecast →A 14-day forecast — also called a two-week or extended forecast — projects daily weather conditions out to roughly two weeks ahead. For each day it gives you an expected high and low temperature, a chance of precipitation, and a general sky condition. It's the forecast people reach for when planning trips, outdoor events, weddings, and travel: far enough ahead to be useful for planning, but still grounded in real atmospheric modelling rather than guesswork.
It's important to understand what a 14-day forecast can and can't do. The first week is genuinely useful and fairly reliable. The second week is best read as a trend — a signal of whether the period is likely to be warmer or cooler, wetter or drier than normal — rather than a day-by-day promise.
| Range | Reliability | How to Use It |
|---|---|---|
| Days 1–3 | Very high | Trust it for firm plans. |
| Days 4–7 | Good | Reliable for general planning. |
| Days 8–10 | Moderate | Read as a trend, expect updates. |
| Days 11–14 | Low | A directional signal only. |
The atmosphere is a chaotic system: tiny differences in today's conditions grow into large differences a week or two later. This is the famous "butterfly effect." Forecast models start with a snapshot of current conditions and project them forward, but because that snapshot is never perfect, small errors compound with each day into the future. That's why a 1-day forecast is almost always right and a 14-day forecast is a careful estimate. It isn't a flaw in the technology — it's a fundamental limit of predicting a chaotic system.
Planning a trip? Check the two-week outlook for these popular cities:
Use the first week to make firm plans and the second week to set expectations. If you're planning a trip two weeks out, the 14-day forecast tells you whether to pack for a heatwave or a cold snap — then check back daily as the date nears to refine the details. Treat the far end as a forecast of the season's mood, not a guarantee for a specific afternoon, and you'll get real value out of it without being misled.