Outdoor conditions in

Grass Range

Montana
Now
  1. 35°Mostly Sunny0% rain67% humidityGusts 29 mph
  2. 35°Sunny0% rain64% humidityGusts 29 mph
  3. 36°Sunny0% rain62% humidityGusts 30 mph
  4. 38°Sunny0% rain57% humidityGusts 35 mph
  5. 39°Sunny0% rain54% humidityGusts 33 mph
  6. 42°Sunny0% rain49% humidityGusts 31 mph
  7. 44°Sunny0% rain44% humidityGusts 30 mph
  8. 44°Sunny0% rain44% humidityGusts 28 mph
  9. 45°Sunny0% rain42% humidityGusts 26 mph
  10. 46°Sunny0% rain42% humidityGusts 23 mph
  11. 44°Sunny0% rain44% humidityGusts 18 mph
  12. 41°Mostly Clear0% rain49% humidityGusts 12 mph
  13. 39°Mostly Clear0% rain55% humidityGusts 9 mph
  14. 35°Mostly Clear0% rain60% humidityGusts 8 mph
  15. 33°Mostly Clear0% rain63% humidityGusts 9 mph
  16. 32°Mostly Clear0% rain63% humidityGusts 10 mph
  17. 32°Mostly Clear0% rain63% humidityGusts 12 mph
  18. 32°Mostly Clear0% rain63% humidityGusts 13 mph
  19. 32°Mostly Clear0% rain62% humidityGusts 16 mph
  20. 33°Mostly Clear0% rain60% humidityGusts 20 mph
  21. 33°Partly Cloudy0% rain60% humidityGusts 21 mph
  22. 33°Partly Cloudy0% rain58% humidityGusts 21 mph
  23. 33°Mostly Clear0% rain58% humidityGusts 18 mph
  24. 32°Sunny0% rain58% humidityGusts 17 mph
Extra care for

A little farther out

The next five days

Today

Today looks breezy.

Rain
0%
Humidity
42–75%
Wind
35 mph
Fri

Friday looks fairly quiet.

Rain
0%
Humidity
24–63%
Wind
21 mph
Sat

Saturday looks fairly quiet.

Rain
0%
Humidity
14–34%
Wind
21 mph
Sun

Sunday looks fairly quiet.

Rain
0%
Humidity
34–55%
Wind
20 mph
Mon

Monday looks fairly quiet.

Rain
1%
Humidity
32–60%
Wind
14 mph
  1. 46° / 32°Today looks breezy.0% rain · Humidity 42–75% · Wind 35 mph
  2. 70° / 32°Friday looks fairly quiet.0% rain · Humidity 24–63% · Wind 21 mph
  3. 79° / 47°Saturday looks fairly quiet.0% rain · Humidity 14–34% · Wind 21 mph
  4. 58° / 44°Sunday looks fairly quiet.0% rain · Humidity 34–55% · Wind 20 mph
  5. 66° / 43°Monday looks fairly quiet.1% rain · Humidity 32–60% · Wind 14 mph

Environmental watch

Air quality + smoke

Air quality

Lewistown area · Updated Thu 6:25 AM
44GoodUS AQI

No fresh outlook yet.

Sky check

No plume detected overhead

Satellite view · Updated Thu 6:45 AM

Air near ground44 · Good US AQI

Rain, in motion · Past four hours

Grass Range radar

Ready when you areSee what is moving toward Grass Range.

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?

Conditions could spread a fire quickly.

Wind, gusts, or the combination of dry air and wind raises the concern.

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

Sustained wind is 21 mph.

Humidity
67%
Wind
21 mph
Gusts
29 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 31 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 Grass Range, 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.