Altoona, Pennsylvania Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Altoona weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Rain30%0.26″93°69°—
- SundayJul 5Rain87%0.33″87°71°-6°
- MondayJul 6T-storm w/ Hail84%0.17″77°65°-10°
- TuesdayJul 7Showers66%0.26″77°62°0°
- WednesdayJul 8Overcast15%—83°58°+6°
- ThursdayJul 9Overcast44%—89°62°+6°
- FridayJul 10Drizzle42%—85°66°-4°
AQI 58 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 13.3 µg/m³ (AQI 59) with a 0.96 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 36 now. With UV 1.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 9 around 1 PM.
- Present
- AQI 36
- UV peak
- 1.0 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 9
PM × Wind × Precip
PM2.5 at 13.3 µg/m³ (AQI 59) with a 0.96 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.96
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:08 PM
- Moonset
- 10:16 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Altoona at a glance
- Today vs. normal: 4°F above the seasonal normal for this latitude
- Last frost: April 19 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP codes: 16601, 16602
16-Day Forecast — Altoona
- Sat93°69°30%
- Sun87°71°87%
- Mon77°65°84%
- Tue77°62°66%
- Wed83°58°15%
- Thu89°62°44%
- Fri85°66°42%
- Sat83°67°36%
- Sun78°62°27%
- Mon78°61°18%
- Tue74°63°15%
- Wed82°63°32%
- Thu92°66°32%
- Fri91°71°39%
- Sat82°69°40%
- Sun87°65°43%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Altoona
Right now in the garden
Peak growing season
As of July 4, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — Altoona
SPC has placed Altoona in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWMRGLMarginal Risk
- DAY 3TSTMGeneral Thunderstorms
Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
ZIP codes in Altoona
- 16601
- 16602
- 16603