Outdoor conditions in

Northumberland

Pennsylvania
Now
  1. 65°Mostly Sunny0% rain56% humidityGusts 6 mph
  2. 66°Mostly Sunny1% rain54% humidityGusts 7 mph
  3. 65°Partly Sunny1% rain58% humidityGusts 9 mph
  4. 64°Mostly Cloudy1% rain60% humidityGusts 9 mph
  5. 63°Mostly Cloudy1% rain65% humidityGusts 10 mph
  6. 60°Mostly Cloudy4% rain75% humidityGusts 10 mph
  7. 59°Cloudy5% rain80% humidityGusts 13 mph
  8. 58°Cloudy6% rain83% humidityGusts 16 mph
  9. 58°Slight Chance Light Rain15% rain87% humidityGusts 18 mph
  10. 57°Slight Chance Light Rain21% rain90% humidityGusts 20 mph
  11. 58°Chance Light Rain33% rain90% humidityGusts 21 mph
  12. 57°Light Rain Likely59% rain96% humidityGusts 22 mph
  13. 57°Light Rain Likely68% rain96% humidityGusts 23 mph
  14. 57°Light Rain79% rain100% humidityGusts 24 mph
  15. 58°Light Rain Likely61% rain96% humidityGusts 24 mph
  16. 58°Light Rain Likely58% rain100% humidityGusts 25 mph
  17. 59°Chance Light Rain38% rain96% humidityGusts 24 mph
  18. 60°Cloudy10% rain96% humidityGusts 22 mph
  19. 62°Mostly Cloudy7% rain97% humidityGusts 23 mph
  20. 67°Mostly Cloudy2% rain87% humidityGusts 23 mph
  21. 69°Mostly Cloudy2% rain84% humidityGusts 21 mph
  22. 73°Partly Sunny0% rain79% humidityGusts 21 mph
  23. 77°Partly Sunny2% rain69% humidityGusts 21 mph
  24. 77°Chance Showers And Thunderstorms38% rain71% humidityGusts 22 mph
Extra care for

A little farther out

The next five days

Today

Today looks fairly quiet.

Rain
15%
Humidity
54–87%
Wind
18 mph
Fri

Friday carries a thunderstorm chance.

Rain
79%
Humidity
69–100%
Wind
25 mph
Sat

Saturday looks breezy.

Rain
20%
Humidity
42–83%
Wind
31 mph
Sun

Sunday looks fairly quiet.

Rain
6%
Humidity
43–88%
Wind
12 mph
Mon

Monday looks fairly quiet.

Rain
11%
Humidity
51–93%
Wind
10 mph
  1. 66° / 56°Today looks fairly quiet.15% rain · Humidity 54–87% · Wind 18 mph
  2. 77° / 57°Friday carries a thunderstorm chance.79% rain · Humidity 69–100% · Wind 25 mph
  3. 56° / 37°Saturday looks breezy.20% rain · Humidity 42–83% · Wind 31 mph
  4. 58° / 31°Sunday looks fairly quiet.6% rain · Humidity 43–88% · Wind 12 mph
  5. 62° / 36°Monday looks fairly quiet.11% rain · Humidity 51–93% · Wind 10 mph

Environmental watch

Air quality + smoke

Air quality

Williamsport area · Updated Thu 2:25 PM
19GoodUS AQI

Good now, rising to Moderate by Fri 12 PM.

Sky check

No plume detected overhead

Satellite view · Updated Thu 2:45 PM

Air near ground19 · Good US AQI

Rain, in motion · Past four hours

Northumberland radar

Ready when you areSee what is moving toward Northumberland.

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 56% with light wind and gusts below 7 mph.

Humidity
56%
Wind
1 mph
Gusts
6 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 Williamsport area, about 26 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 Northumberland, 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.