5-day weather forecast for East Alton, Illinois
Today
69°
90°
Partly sunny
Saturday
73°
97°
Hot
Sunday
75°
97°
Hot
Monday
76°
93°
Chance Thunderstorms
Tuesday
69°
85°
Slight Chance Thunderstorms
Click on a forecast to see the forecast trend for that day
Weather changeability for Saint Louis, Missouri
| Temperature | Last Month | Last Year |
|---|---|---|
| Average change in high temperature day-to-day | 7.6° | 6.7° |
| Average change in low temperature day-to-day | 8.5° | 7.7° |
| Precipitation | Last Month | Last Year |
|---|---|---|
| Chance of dry day after a precip day | 44% | 50% |
| Chance of precip day after a dry day | 21% | 26% |
Weather forecast accuracy for Saint Louis, Missouri
| The Weather Channel | 77.08% |
| AccuWeather | 76.79% |
| Intellicast | 76.19% |
| National Weather Service | 76.19% |
| CustomWeather | 70.54% |
| Weather Underground | 70.24% |
| NWS Digital Forecast | 67.86% |
| World Weather Online | 64.81% |
| Persistence | 36.71% |
| National Weather Service | 67.74% |
| The Weather Channel | 65.79% |
| Intellicast | 65.77% |
| NWS Digital Forecast | 65.25% |
| CustomWeather | 63.28% |
| AccuWeather | 62.78% |
| Persistence | 42.30% |
ForecastAdvisor Fact
59.5% of CustomWeather's low temperature forecasts for Saint Louis were within 3 degrees of actual temperatures last month.