5-day weather forecast for Cheltenham, Maryland
Today
70°
85°
Chance Thunderstorms
Thursday
68°
84°
Thunderstorms Likely
Friday
62°
71°
Mostly Sunny
Saturday
50°
73°
Partly Sunny
Sunday
52°
75°
Slight Chance Rain
Click on a forecast to see the forecast trend for that day
Weather changeability for Washington, District of Columbia
| Temperature | Last Month | Last Year |
|---|---|---|
| Average change in high temperature day-to-day | 6.7° | 5.7° |
| Average change in low temperature day-to-day | 4.8° | 5.5° |
| Precipitation | Last Month | Last Year |
|---|---|---|
| Chance of dry day after a precip day | 88% | 61% |
| Chance of precip day after a dry day | 30% | 28% |
Weather forecast accuracy for Washington, District of Columbia
| The Weather Channel | 80.56% |
| Intellicast | 80.56% |
| Weather Underground | 73.61% |
| AccuWeather | 72.50% |
| National Weather Service | 71.39% |
| CustomWeather | 69.17% |
| NWS Digital Forecast | 68.89% |
| World Weather Online | 66.39% |
| Persistence | 43.55% |
| The Weather Channel | 77.06% |
| Intellicast | 77.06% |
| National Weather Service | 74.50% |
| AccuWeather | 72.00% |
| NWS Digital Forecast | 70.87% |
| CustomWeather | 70.17% |
| Persistence | 44.49% |
ForecastAdvisor Fact
11.3% of National Weather Service's high temperature forecasts for Washington were exactly right last year.