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: A Few Clouds 78°F 2025-07-10T12:53:00-04:00
This Afternoon 2025-07-10, Partly Sunny. Partly sunny, with a high near 87. Calm wind.
Tonight 2025-07-10, Partly Cloudy then Patchy Fog. Patchy fog after 2am. Otherwise, mostly clear, with a low around 66. Calm wind.
Friday 2025-07-11, Sunny then Chance T-storms. A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Calm wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night 2025-07-11, Chance T-storms then Partly Cloudy. A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 67. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday 2025-07-12, Slight Chance T-storms then Chance T-storms. A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 90. Light south wind. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night 2025-07-12, Chance T-storms. A chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 68. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday 2025-07-13, Chance Showers then Showers. Showers and possibly a thunderstorm, mainly after 2pm. High near 89. Chance of precipitation is 80%.
Sunday Night 2025-07-13, Showers. Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 68. Chance of precipitation is 80%.
Monday 2025-07-14, Showers Likely. A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 86. Chance of precipitation is 60%.
Monday Night 2025-07-14, Showers Likely then Mostly Clear. Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 65. Chance of precipitation is 60%.
Tuesday 2025-07-15, Mostly Sunny. Mostly sunny, with a high near 89.
Tuesday Night 2025-07-15, Mostly Clear. Mostly clear, with a low around 66.
Wednesday 2025-07-16, Sunny then Chance T-storms. A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
Current condition: A Few Clouds 78°F 2025-07-10T12:53:00-04:00 
This Afternoon 2025-07-10, Partly Sunny. Partly sunny, with a high near 87. Calm wind.Tonight 2025-07-10, Partly Cloudy then Patchy Fog. Patchy fog after 2am. Otherwise, mostly clear, with a low around 66. Calm wind.
Friday 2025-07-11, Sunny then Chance T-storms. A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Calm wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night 2025-07-11, Chance T-storms then Partly Cloudy. A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 67. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday 2025-07-12, Slight Chance T-storms then Chance T-storms. A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 90. Light south wind. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night 2025-07-12, Chance T-storms. A chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 68. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.Sunday 2025-07-13, Chance Showers then Showers. Showers and possibly a thunderstorm, mainly after 2pm. High near 89. Chance of precipitation is 80%.
Sunday Night 2025-07-13, Showers. Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 68. Chance of precipitation is 80%.
Monday 2025-07-14, Showers Likely. A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 86. Chance of precipitation is 60%.Monday Night 2025-07-14, Showers Likely then Mostly Clear. Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 65. Chance of precipitation is 60%.
Tuesday 2025-07-15, Mostly Sunny. Mostly sunny, with a high near 89.
Tuesday Night 2025-07-15, Mostly Clear. Mostly clear, with a low around 66.Wednesday 2025-07-16, Sunny then Chance T-storms. A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 30%.