Outdoor conditions in

Harmonsburg

Pennsylvania
Now
  1. 64°Mostly Sunny1% rain61% humidityGusts 7 mph
  2. 66°Sunny1% rain58% humidityGusts 7 mph
  3. 67°Mostly Sunny1% rain59% humidityGusts 7 mph
  4. 68°Mostly Sunny1% rain59% humidityGusts 7 mph
  5. 67°Mostly Sunny2% rain62% humidityGusts 8 mph
  6. 66°Mostly Cloudy6% rain67% humidityGusts 8 mph
  7. 64°Mostly Cloudy9% rain75% humidityGusts 9 mph
  8. 62°Mostly Cloudy13% rain83% humidityGusts 10 mph
  9. 61°Slight Chance Rain Showers20% rain86% humidityGusts 14 mph
  10. 61°Chance Rain Showers27% rain90% humidityGusts 15 mph
  11. 61°Chance Showers And Thunderstorms35% rain93% humidityGusts 16 mph
  12. 62°Chance Showers And Thunderstorms53% rain97% humidityGusts 18 mph
  13. 63°Showers And Thunderstorms Likely71% rain99% humidityGusts 18 mph
  14. 63°Showers And Thunderstorms90% rain100% humidityGusts 20 mph
  15. 64°Showers And Thunderstorms79% rain100% humidityGusts 21 mph
  16. 66°Showers And Thunderstorms Likely69% rain100% humidityGusts 23 mph
  17. 67°Chance Showers And Thunderstorms54% rain100% humidityGusts 23 mph
  18. 67°Showers And Thunderstorms Likely55% rain98% humidityGusts 24 mph
  19. 68°Showers And Thunderstorms Likely61% rain95% humidityGusts 24 mph
  20. 67°Rain Showers Likely74% rain97% humidityGusts 24 mph
  21. 66°Rain Showers Likely73% rain93% humidityGusts 26 mph
  22. 66°Rain Showers80% rain92% humidityGusts 25 mph
  23. 65°Rain Showers86% rain92% humidityGusts 25 mph
  24. 63°Rain Showers77% rain93% humidityGusts 26 mph
Extra care for

A little farther out

The next five days

Today

Today looks fairly quiet.

Rain
35%
Humidity
58–96%
Wind
16 mph
Fri

Friday looks wet for a meaningful stretch.

Rain
90%
Humidity
90–100%
Wind
26 mph
Sat

Saturday has a real shower chance.

Rain
67%
Humidity
48–100%
Wind
21 mph
Sun

Sunday looks fairly quiet.

Rain
2%
Humidity
39–92%
Wind
13 mph
Mon

Monday looks fairly quiet.

Rain
5%
Humidity
44–89%
Wind
9 mph
  1. 68° / 49°Today looks fairly quiet.35% rain · Humidity 58–96% · Wind 16 mph
  2. 68° / 46°Friday looks wet for a meaningful stretch.90% rain · Humidity 90–100% · Wind 26 mph
  3. 48° / 37°Saturday has a real shower chance.67% rain · Humidity 48–100% · Wind 21 mph
  4. 60° / 33°Sunday looks fairly quiet.2% rain · Humidity 39–92% · Wind 13 mph
  5. 63° / 37°Monday looks fairly quiet.5% rain · Humidity 44–89% · Wind 9 mph

Environmental watch

Air quality + smoke

Air quality

Mercer County area · Updated Thu 12:26 PM
23GoodUS AQI

Good through Fri 12 PM.

Sky check

No plume detected overhead

Satellite view · Updated Thu 8:45 AM

Air near ground23 · Good US AQI

Rain, in motion · Past four hours

Harmonsburg radar

Ready when you areSee what is moving toward Harmonsburg.

Watch the last four hours of rain, then search any nearby trail, lake, or address.

View the official forecast ↗

Outdoor fire check

Thinking about a backyard fire?

Weather is less concerning around 4 PM–7 PM.

Humidity stays higher and winds stay lighter for at least three hours.

Next 12 hoursChoose a time to see what is driving the concern.
Selected timeNowLower weather concern

Humidity is 61% with light wind and gusts below 8 mph.

Humidity
61%
Wind
5 mph
Gusts
7 mph

Check local rules. Weather is only part of the decision. Check city, county, and land-manager fire restrictions before lighting any outdoor fire.

About these readingsSources and local limits

Weather

Forecasts, alerts, and radar come from NOAA and the National Weather Service.

Air quality

This reading describes Mercer County area, about 29 miles away. Conditions can differ at this exact spot.

Smoke

Satellite imagery shows smoke overhead. It cannot tell us how much smoke has reached breathing level.

This page represents Harmonsburg, PA, so conditions can vary from street to street. Environmental data: AirNow · participating air agencies · preliminary real-time US AQI · NOAA Hazard Mapping System · satellite-observed smoke.