| WXSIM Forecast for:
Portsmouth Issued by: Saratoga-Weather.org |
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| Updated: Friday, 05-Sep-2025 11:12 pm | ||||||||||||||||||||||||||||||||||||||||||||||||
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| Rest of tonight |
Clear. Low 67°. Wind south-southwest around 9 mph, gusting to 17 mph. |
| Saturday |
Mostly sunny in the morning, becoming partly cloudy in the afternoon. A slight chance of rain in the afternoon. Breezy and warm. High 84°. UV index up to 7. Wind south-southwest around 12 mph, gusting to 23 mph. Chance of precipitation 20 percent. Precipitation mostly less than a tenth of an inch. |
| Saturday night |
Cloudy in the evening, becoming dense overcast after midnight. Patchy light fog. A chance of rain. Low 63°. Wind west-southwest around 5 mph, gusting to 15 mph, in the evening, becoming north after midnight. Chance of precipitation 50 percent. Precipitation mostly less than a quarter of an inch. |
| Sunday |
Dense overcast. Patchy light fog. Rain likely. High 66°. Wind north-northwest around 4 mph. Chance of precipitation 60 percent. Precipitation mostly around a quarter of an inch. |
| Sunday night |
Dense overcast in the evening, becoming mostly cloudy after midnight. Low 57°. Wind west-southwest around 4 mph in the evening, becoming northwest after midnight. |
| Monday |
Partly to mostly cloudy in the morning, becoming mostly cloudy in the afternoon. High 73°. UV index up to 5. Wind north-northwest around 3 mph in the morning, becoming south in the afternoon. |
| Monday night |
Mostly cloudy to cloudy in the evening, becoming partly cloudy after midnight. Low 56°. Wind southwest around 3 mph in the evening, becoming north around 6 mph after midnight. |
| Tuesday |
Sunny in the morning, becoming mostly sunny in the afternoon. High 72°. UV index up to 6. Wind east-northeast around 10 mph, gusting to 19 mph. |
| Tuesday night |
Partly to mostly cloudy in the evening, becoming fair to partly cloudy after midnight. Low 55°. Wind east-northeast around 7 mph, gusting to 16 mph. |
| Wednesday |
Cloudy. High 68°. UV index up to 3. Wind northeast around 7 mph in the morning, becoming east in the afternoon. |
| Wednesday night |
Cloudy. Low 59°. Wind east around 3 mph in the evening, becoming north after midnight. |
| Thursday |
Partly to mostly cloudy. High 77°. UV index up to 5. Wind west-northwest around 4 mph in the morning, becoming southwest in the afternoon. |
| Thursday night |
Mostly cloudy in the evening, becoming dense overcast after midnight. Low 60°. Wind west around 5 mph in the evening, becoming north around 11 mph, gusting to 20 mph, after midnight. |
| Friday |
Dense overcast in the morning, becoming cloudy in the afternoon. A chance of rain. Breezy and cool. High 63°, but temperatures falling in the afternoon. UV index up to 2. Wind north around 12 mph, gusting to 21 mph. Chance of precipitation 40 percent. Precipitation mostly less than a tenth of an inch. |
| Friday night |
Partly to mostly cloudy in the evening, becoming fair after midnight. Cool. Low 51°. Wind north around 9 mph, gusting to 19 mph. |
| Saturday |
Mostly sunny in the morning, becoming mostly cloudy to cloudy in the afternoon. Breezy. High 65°. UV index up to 4. Wind north-northeast around 11 mph, gusting to 22 mph. |
| Saturday night |
Partly to mostly cloudy in the evening, becoming clear after midnight. Cool. Low 49°. Wind northwest around 4 mph in the evening, becoming 7 mph after midnight. |
WXSIM forecast formatting script by Saratoga-Weather.org.