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Spring Valley Weather Forecast
| REST OF TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
 |  |  | | |  |  |  |  | | | |
| Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Chance of Showers | Mostly Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy | Mostly Sunny |
| Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°C | Lo: 71°FLo: 22°C | Hi: 89°FHi: 32°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 60°FLo: 16°C | Hi: 85°FHi: 29°C | Lo: 61°FLo: 16°C | Hi: 89°FHi: 32°C |
| POP: 40% | POP: 40% | POP: 70% | POP: 70% | POP: 30% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 109 AM EDT Fri Sep 04 2026 
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Issued: 132 AM EDT Fri Sep 4 2026
Key Messages
1) A Severe Thunderstorm Watch has been issued through 2 AM, which includes Southeast MD and portions of the Northern Neck.
2) Hot and humid conditions with heat indices around 105F are expected through the rest of the week. Heat Advisories remain in effect for nearly the entire area through this evening, and have been issued for central and SE portions of the area on Friday.
3) A few thunderstorms are possible mainly across northern portions of the area this evening and tonight (possi...