Outdoor conditions in

Alton

New Hampshire
Now
  1. 44°Sunny0% rain82% humidityGusts 16 mph
  2. 47°Sunny0% rain76% humidityGusts 16 mph
  3. 51°Sunny0% rain66% humidityGusts 14 mph
  4. 53°Sunny0% rain61% humidityGusts 14 mph
  5. 55°Mostly Sunny0% rain57% humidityGusts 14 mph
  6. 56°Mostly Sunny0% rain53% humidityGusts 14 mph
  7. 57°Sunny0% rain51% humidityGusts 12 mph
  8. 58°Mostly Sunny0% rain49% humidityGusts 12 mph
  9. 57°Mostly Sunny0% rain51% humidityGusts 9 mph
  10. 56°Sunny0% rain53% humidityGusts 7 mph
  11. 53°Mostly Clear0% rain57% humidityGusts 5 mph
  12. 48°Partly Cloudy0% rain68% humidityGusts 2 mph
  13. 44°Partly Cloudy0% rain76% humidityWind unavailable
  14. 43°Mostly Clear0% rain79% humidityWind unavailable
  15. 42°Partly Cloudy0% rain82% humidityWind unavailable
  16. 41°Partly Cloudy0% rain82% humidityWind unavailable
  17. 40°Mostly Cloudy0% rain85% humidityWind unavailable
  18. 40°Mostly Cloudy0% rain85% humidityWind unavailable
  19. 40°Mostly Cloudy1% rain85% humidityGusts 2 mph
  20. 39°Mostly Cloudy2% rain92% humidityGusts 5 mph
  21. 41°Mostly Cloudy4% rain85% humidityGusts 5 mph
  22. 41°Slight Chance Rain Showers23% rain92% humidityGusts 7 mph
  23. 41°Chance Rain Showers33% rain96% humidityGusts 9 mph
  24. 42°Chance Rain Showers49% rain96% humidityGusts 9 mph
Extra care for

A little farther out

The next five days

Today

Today looks fairly quiet.

Rain
0%
Humidity
49–83%
Wind
17 mph
Fri

Friday looks wet for a meaningful stretch.

Rain
100%
Humidity
85–100%
Wind
23 mph
Sat

Saturday looks breezy.

Rain
23%
Humidity
46–90%
Wind
29 mph
Sun

Sunday looks fairly quiet.

Rain
1%
Humidity
46–82%
Wind
16 mph
Mon

Monday looks fairly quiet.

Rain
15%
Humidity
53–96%
Wind
16 mph
  1. 58° / 41°Today looks fairly quiet.0% rain · Humidity 49–83% · Wind 17 mph
  2. 61° / 39°Friday looks wet for a meaningful stretch.100% rain · Humidity 85–100% · Wind 23 mph
  3. 54° / 34°Saturday looks breezy.23% rain · Humidity 46–90% · Wind 29 mph
  4. 53° / 30°Sunday looks fairly quiet.1% rain · Humidity 46–82% · Wind 16 mph
  5. 59° / 34°Monday looks fairly quiet.15% rain · Humidity 53–96% · Wind 16 mph

Environmental watch

Air quality + smoke

Air quality

Belknap County area · Updated Thu 8:25 AM
5GoodUS AQI

No fresh outlook yet.

Sky check

No plume detected overhead

Satellite view · Updated Thu 2:46 AM

Air near ground5 · Good US AQI

Rain, in motion · Past four hours

Alton radar

Ready when you areSee what is moving toward Alton.

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 timeNowUse caution

Sustained wind is 10 mph. Gusts may reach 16 mph.

Humidity
82%
Wind
10 mph
Gusts
16 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 Belknap County area, about 11 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 Alton, NH, 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.