I-99 weather conditions near Altoona, Pennsylvania
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Fair 62°F 2026-05-04T21:53:00-04:00 
Tonight 2026-05-04, Slight Chance Showers. A slight chance of showers before midnight, then a slight chance of showers after 3am. Partly cloudy, with a low around 56. South wind around 7 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Tuesday 2026-05-05, Slight Chance Showers. A slight chance of showers. Partly sunny, with a high near 80. Southwest wind 11 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 20%.Tuesday Night 2026-05-05, Chance Showers then Showers Likely. Showers likely, mainly after 2am. Mostly cloudy, with a low around 56. Southwest wind around 7 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday 2026-05-06, Showers. Showers, with thunderstorms also possible after 2pm. High near 66. South wind 6 to 8 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.Wednesday Night 2026-05-06, Chance T-storms then Chance Showers. A chance of showers and thunderstorms. Mostly cloudy, with a low around 42. Northwest wind around 6 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday 2026-05-07, Chance Showers. A chance of showers. Partly sunny, with a high near 58. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night 2026-05-07, Mostly Cloudy. Mostly cloudy, with a low around 38.Friday 2026-05-08, Mostly Sunny then Chance Showers. A chance of showers after 2pm. Mostly sunny, with a high near 61. Chance of precipitation is 30%.
Friday Night 2026-05-08, Chance Showers. A chance of showers. Mostly cloudy, with a low around 45. Chance of precipitation is 40%.
Saturday 2026-05-09, Showers Likely. Showers likely, mainly after 2pm. Partly sunny, with a high near 63. Chance of precipitation is 60%.Saturday Night 2026-05-09, Showers Likely then Chance Showers. Showers likely. Partly cloudy, with a low around 44. Chance of precipitation is 60%.
Sunday 2026-05-10, Sunny then Chance Showers. A chance of showers. Mostly sunny, with a high near 70. Chance of precipitation is 30%.
Sunday Night 2026-05-10, Chance Showers. A chance of showers. Mostly cloudy, with a low around 48. Chance of precipitation is 50%.
Monday 2026-05-11, Chance Showers. A chance of showers. Mostly cloudy, with a high near 64. Chance of precipitation is 50%.