Lewistown, Pennsylvania Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Lewistown weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain26%0.35″98°72°—
- SundayJul 5Heavy Rain90%2.2″91°73°-7°
- MondayJul 6Thunderstorm90%0.07″76°64°-15°
- TuesdayJul 7Drizzle67%0.02″76°63°0°
- WednesdayJul 8Overcast15%—87°58°+11°
- ThursdayJul 9Overcast39%—92°68°+5°
- FridayJul 10Light Drizzle44%—89°67°-3°
AQI 55 (Moderate), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 50 now. With UV 4.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 29 around 1 PM.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 6 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 50 now. With UV 4.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 29 around 1 PM.
- Present
- AQI 50
- UV peak
- 4.3 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 29
PM × Wind × Precip
PM2.5 at 8.3 µg/m³ (AQI 46) with a 0.93 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.93
- 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
- 11:04 PM
- Moonset
- 10:13 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Lewistown at a glance
- Today vs. normal: 9°F above the seasonal normal for this latitude
- Last frost: April 20 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 17044
16-Day Forecast — Lewistown
- Sat98°72°26%
- Sun91°73°90%
- Mon76°64°90%
- Tue76°63°67%
- Wed87°58°15%
- Thu92°68°39%
- Fri89°67°44%
- Sat88°69°33%
- Sun79°65°29%
- Mon77°65°17%
- Tue80°65°14%
- Wed86°67°26%
- Thu95°68°23%
- Fri93°73°31%
- Sat85°71°32%
- Sun89°67°33%
Forecast data from Open-Meteo (CC BY 4.0).
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 — Lewistown
SPC has placed Lewistown in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWSLGTSlight 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 Lewistown
- 17044