Millheim, Pennsylvania Weather
Fireflies rise from the lawn. Day 77 of spring. Read this microseason across nine climate regions →
Millheim weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast——81°53°—
- FridayJun 5Overcast——84°59°+3°
- SaturdayJun 6Showers45%0.10″83°63°-1°
- SundayJun 7Heavy Drizzle45%—85°59°+2°
- MondayJun 8Partly Cloudy——77°54°-8°
- TuesdayJun 9Mostly Clear——80°52°+3°
- WednesdayJun 10Overcast18%—84°54°+4°
Ozone at AQI 73 now. AQI flat over the last 6 hours (within ±3 points). With UV 7.5 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 52 by mid-afternoon.
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 73 now. With UV 7.5 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 52 by mid-afternoon.
- Present
- AQI 73
- UV peak
- 7.5 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 52
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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 3:41 AM
- Moonset
- 1:07 PM
- In sign
- ♒︎ Aquarius
Fireflies rise from the lawn
Millheim at a glance
- Today vs. normal: 74°F — typical for the season
- Last frost: April 21 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 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 — Millheim
SPC has placed Millheim in the Marginal Risk category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- DAY 3MRGLMarginal Risk
Isolated severe storms possible. Limited threat for hail or damaging wind.
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.