Outdoor conditions in

Lewistown

Montana
Now
  1. 30°Mostly Sunny0% rain82% humidityGusts 21 mph
  2. 32°Sunny0% rain80% humidityGusts 22 mph
  3. 34°Sunny0% rain76% humidityGusts 24 mph
  4. 35°Sunny0% rain70% humidityGusts 25 mph
  5. 38°Sunny0% rain65% humidityGusts 24 mph
  6. 40°Sunny0% rain58% humidityGusts 22 mph
  7. 40°Sunny0% rain56% humidityGusts 21 mph
  8. 41°Sunny0% rain55% humidityGusts 20 mph
  9. 42°Sunny0% rain55% humidityGusts 16 mph
  10. 40°Sunny0% rain57% humidityGusts 12 mph
  11. 37°Mostly Clear0% rain66% humidityGusts 5 mph
  12. 35°Mostly Clear0% rain69% humidityGusts 5 mph
  13. 32°Mostly Clear0% rain67% humidityGusts 8 mph
  14. 30°Mostly Clear0% rain69% humidityGusts 10 mph
  15. 29°Mostly Clear0% rain69% humidityGusts 12 mph
  16. 29°Mostly Clear0% rain69% humidityGusts 13 mph
  17. 29°Mostly Clear0% rain69% humidityGusts 14 mph
  18. 29°Partly Cloudy0% rain69% humidityGusts 15 mph
  19. 29°Partly Cloudy0% rain67% humidityGusts 16 mph
  20. 30°Partly Cloudy0% rain66% humidityGusts 18 mph
  21. 30°Mostly Clear0% rain64% humidityGusts 20 mph
  22. 30°Mostly Clear0% rain62% humidityGusts 20 mph
  23. 29°Sunny0% rain59% humidityGusts 20 mph
  24. 32°Sunny0% rain56% humidityGusts 20 mph
Extra care for

A little farther out

The next five days

Today

Today looks breezy.

Rain
0%
Humidity
55–84%
Wind
25 mph
Fri

Friday looks fairly quiet.

Rain
0%
Humidity
25–69%
Wind
21 mph
Sat

Saturday looks fairly quiet.

Rain
0%
Humidity
19–42%
Wind
24 mph
Sun

Sunday looks fairly quiet.

Rain
0%
Humidity
40–64%
Wind
15 mph
Mon

Monday looks fairly quiet.

Rain
3%
Humidity
30–65%
Wind
12 mph
  1. 42° / 29°Today looks breezy.0% rain · Humidity 55–84% · Wind 25 mph
  2. 67° / 29°Friday looks fairly quiet.0% rain · Humidity 25–69% · Wind 21 mph
  3. 73° / 46°Saturday looks fairly quiet.0% rain · Humidity 19–42% · Wind 24 mph
  4. 58° / 41°Sunday looks fairly quiet.0% rain · Humidity 40–64% · Wind 15 mph
  5. 66° / 39°Monday looks fairly quiet.3% rain · Humidity 30–65% · Wind 12 mph

Environmental watch

Air quality + smoke

Air quality

Lewistown area · Updated Thu 7:26 AM
25GoodUS AQI

No fresh outlook yet.

Sky check

No plume detected overhead

Satellite view · Updated Thu 6:45 AM

Air near ground25 · Good US AQI

Rain, in motion · Past four hours

Lewistown radar

Ready when you areSee what is moving toward Lewistown.

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 5 PM–8 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 21 mph.

Humidity
82%
Wind
10 mph
Gusts
21 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 Lewistown area, about 0 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 Lewistown, MT, 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.