What is the weather in Dewey right now?

Current weather in Dewey is fog.

Where can I find the hourly weather forecast for Dewey?

This page shows hourly weather forecast for Dewey, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for Dewey updated regularly?

Weather data for Dewey is updated regularly with the latest available observations and forecasts.

Now · 8:20 AM

Dewey Weather & Hourly Forecast

United States · Montana · 59727

35°F

Fog

Feels like: 30°F

💧 Humidity 99% 🌡 Pressure 30.21 inHg 💨 Wind 4 mph 👁 Visibility 0.2 mi ☁ Clouds 34% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Dewey

Today

9:00 AM

Fog

42° 💧 None 💨 3 mph H 90%30.21 inHg

12:00 PM

Sunny

57° 💧 0.000 in 💨 2 mph H 46%30.15 inHg

3:00 PM

Mostly sunny

62° 💧 0.005 in 💨 4 mph H 36%30.09 inHg

6:00 PM

Mostly sunny

59° 💧 None 💨 3 mph H 43%30.06 inHg

9:00 PM

Mostly clear night

48° 💧 0.000 in 💨 0 mph H 70%30.15 inHg

Tomorrow

12:00 AM

Clear night

43° 💧 None 💨 1 mph H 74%30.15 inHg

3:00 AM

Clear night

40° 💧 None 💨 1 mph H 79%30.12 inHg

6:00 AM

Clear night

39° 💧 None 💨 2 mph H 77%30.12 inHg

9:00 AM

Sunny

48° 💧 None 💨 2 mph H 64%30.12 inHg

12:00 PM

Sunny

61° 💧 None 💨 1 mph H 37%30.06 inHg

3:00 PM

Sunny

65° 💧 None 💨 5 mph H 31%29.97 inHg

6:00 PM

Sunny

62° 💧 None 💨 3 mph H 41%29.94 inHg

9:00 PM

Clear night

50° 💧 None 💨 1 mph H 65%29.97 inHg

Tuesday

12:00 AM

Clear night

43° 💧 None 💨 1 mph H 75%29.97 inHg

3:00 AM

Clear night

41° 💧 None 💨 1 mph H 68%29.97 inHg

6:00 AM

Mostly cloudy night

41° 💧 None 💨 2 mph H 66%29.97 inHg

Today

9:00 AM

Fog

42° 💧 None 💨 3 mph H 90%30.21 inHg

10:00 AM

Sunny

49° 💧 None 💨 2 mph H 65%30.21 inHg

11:00 AM

Sunny

54° 💧 None 💨 2 mph H 54%30.18 inHg

12:00 PM

Sunny

57° 💧 None 💨 2 mph H 46%30.15 inHg

1:00 PM

Sunny

60° 💧 None 💨 2 mph H 41%30.12 inHg

2:00 PM

Sunny

62° 💧 0.000 in 💨 3 mph H 37%30.09 inHg

3:00 PM

Mostly sunny

62° 💧 0.001 in 💨 4 mph H 36%30.09 inHg

4:00 PM

Mostly sunny

62° 💧 0.003 in 💨 4 mph H 37%30.06 inHg

5:00 PM

Mostly sunny

61° 💧 0.001 in 💨 4 mph H 38%30.06 inHg

6:00 PM

Mostly sunny

59° 💧 None 💨 3 mph H 43%30.06 inHg

7:00 PM

Sunny

54° 💧 None 💨 2 mph H 60%30.09 inHg

8:00 PM

Mostly clear night

50° 💧 None 💨 1 mph H 67%30.12 inHg

9:00 PM

Mostly clear night

48° 💧 None 💨 0 mph H 70%30.15 inHg

10:00 PM

Clear night

47° 💧 0.000 in 💨 0 mph H 71%30.15 inHg

11:00 PM

Clear night

45° 💧 None 💨 0 mph H 72%30.15 inHg

Tomorrow

12:00 AM

Clear night

43° 💧 None 💨 1 mph H 74%30.15 inHg

1:00 AM

Clear night

42° 💧 None 💨 1 mph H 76%30.12 inHg

2:00 AM

Clear night

40° 💧 None 💨 1 mph H 78%30.12 inHg

3:00 AM

Clear night

40° 💧 None 💨 1 mph H 79%30.12 inHg

4:00 AM

Clear night

39° 💧 None 💨 1 mph H 78%30.12 inHg

5:00 AM

Clear night

39° 💧 None 💨 1 mph H 78%30.12 inHg

6:00 AM

Clear night

39° 💧 None 💨 2 mph H 77%30.12 inHg

7:00 AM

Clear night

39° 💧 None 💨 2 mph H 77%30.12 inHg

8:00 AM

Sunny

40° 💧 None 💨 2 mph H 77%30.15 inHg

9:00 AM

Sunny

48° 💧 None 💨 2 mph H 64%30.12 inHg

10:00 AM

Sunny

55° 💧 None 💨 1 mph H 51%30.12 inHg

11:00 AM

Sunny

59° 💧 None 💨 1 mph H 43%30.09 inHg

12:00 PM

Sunny

61° 💧 None 💨 1 mph H 37%30.06 inHg

1:00 PM

Sunny

63° 💧 None 💨 3 mph H 34%30.03 inHg

2:00 PM

Sunny

64° 💧 None 💨 4 mph H 32%30.00 inHg

3:00 PM

Sunny

65° 💧 None 💨 5 mph H 31%29.97 inHg

4:00 PM

Sunny

65° 💧 None 💨 5 mph H 32%29.97 inHg

5:00 PM

Sunny

64° 💧 None 💨 4 mph H 35%29.94 inHg

6:00 PM

Sunny

62° 💧 None 💨 3 mph H 41%29.94 inHg

7:00 PM

Sunny

55° 💧 None 💨 2 mph H 58%29.97 inHg

8:00 PM

Clear night

51° 💧 None 💨 2 mph H 64%29.97 inHg

9:00 PM

Clear night

50° 💧 None 💨 1 mph H 65%29.97 inHg

10:00 PM

Clear night

48° 💧 None 💨 1 mph H 67%29.97 inHg

11:00 PM

Clear night

45° 💧 None 💨 1 mph H 71%29.97 inHg

Tuesday

12:00 AM

Clear night

43° 💧 None 💨 1 mph H 75%29.97 inHg

1:00 AM

Clear night

42° 💧 None 💨 1 mph H 74%29.97 inHg

2:00 AM

Clear night

42° 💧 None 💨 1 mph H 71%29.97 inHg

3:00 AM

Clear night

41° 💧 None 💨 1 mph H 68%29.97 inHg

4:00 AM

Clear night

41° 💧 None 💨 1 mph H 66%29.97 inHg

5:00 AM

Mostly clear night

41° 💧 None 💨 2 mph H 65%29.97 inHg

6:00 AM

Mostly cloudy night

41° 💧 None 💨 2 mph H 66%29.97 inHg

7:00 AM

Mostly cloudy night

42° 💧 None 💨 2 mph H 66%29.97 inHg

8:00 AM

Mostly cloudy

43° 💧 None 💨 2 mph H 67%29.97 inHg

9:00 AM

Overcast

50° 💧 None 💨 3 mph H 56%29.97 inHg

10:00 AM

Mostly cloudy

57° 💧 None 💨 1 mph H 39%29.97 inHg

11:00 AM

Overcast

61° 💧 None 💨 1 mph H 31%29.94 inHg

12:00 PM

Mostly cloudy

63° 💧 None 💨 1 mph H 29%29.91 inHg

1:00 PM

Mostly sunny

65° 💧 0.002 in 💨 3 mph H 29%29.88 inHg

2:00 PM

Light rain

65° 💧 0.005 in 💨 4 mph H 30%29.88 inHg

3:00 PM

Mostly cloudy

65° 💧 0.003 in 💨 5 mph H 32%29.85 inHg

4:00 PM

Mostly cloudy

64° 💧 0.003 in 💨 3 mph H 32%29.85 inHg

5:00 PM

Mostly cloudy

63° 💧 None 💨 1 mph H 32%29.85 inHg

6:00 PM

Mostly cloudy

61° 💧 None 💨 2 mph H 35%29.85 inHg

Wednesday

3:00 AM

Mostly clear night

44° 💧 None 💨 1 mph H 84%29.97 inHg

6:00 AM

Mostly clear night

42° 💧 None 💨 2 mph H 88%30.03 inHg

9:00 AM

Sunny

48° 💧 None 💨 1 mph H 80%30.06 inHg

12:00 PM

Light rain

62° 💧 None 💨 3 mph H 41%30.06 inHg

3:00 PM

Mostly sunny

65° 💧 None 💨 5 mph H 36%30.00 inHg

6:00 PM

Sunny

63° 💧 None 💨 4 mph H 37%30.00 inHg

9:00 PM

Clear night

52° 💧 None 💨 0 mph H 58%30.03 inHg

Thursday

12:00 AM

Clear night

46° 💧 None 💨 1 mph H 67%30.09 inHg

3:00 AM

Clear night

42° 💧 None 💨 2 mph H 75%30.09 inHg

6:00 AM

Partly cloudy night

42° 💧 None 💨 2 mph H 79%30.12 inHg

9:00 AM

Mostly sunny

51° 💧 None 💨 5 mph H 67%30.12 inHg

12:00 PM

Mostly sunny

63° 💧 None 💨 8 mph H 44%30.06 inHg

3:00 PM

Sunny

69° 💧 None 💨 11 mph H 34%29.94 inHg

6:00 PM

Sunny

67° 💧 None 💨 8 mph H 34%29.91 inHg

9:00 PM

Clear night

54° 💧 None 💨 3 mph H 54%29.91 inHg

Friday

12:00 AM

Clear night

50° 💧 None 💨 2 mph H 60%29.91 inHg

3:00 AM

Clear night

46° 💧 None 💨 3 mph H 64%29.88 inHg

6:00 AM

Clear night

44° 💧 None 💨 3 mph H 61%29.85 inHg

9:00 AM

Mostly sunny

52° 💧 None 💨 5 mph H 50%29.85 inHg

12:00 PM

Partly cloudy

67° 💧 None 💨 9 mph H 32%29.77 inHg

3:00 PM

Light rain

68° 💧 None 💨 12 mph H 23%29.71 inHg

6:00 PM

Partly cloudy

62° 💧 None 💨 9 mph H 32%29.77 inHg

9:00 PM

Clear night

50° 💧 None 💨 3 mph H 60%29.88 inHg

Saturday

12:00 AM

Mostly clear night

44° 💧 None 💨 2 mph H 79%29.97 inHg

6:00 AM

Partly cloudy night

42° 💧 None 💨 2 mph H 57%30.03 inHg

12:00 PM

Mostly cloudy

34° 💧 None 💨 1 mph H 75%30.09 inHg

6:00 PM

Mostly cloudy

50° 💧 None 💨 2 mph H 39%30.00 inHg

Sunday

12:00 AM

Mostly cloudy night

54° 💧 None 💨 5 mph H 38%29.91 inHg

6:00 AM

Partly cloudy night

40° 💧 None 💨 2 mph H 61%30.00 inHg

12:00 PM

Mostly cloudy

38° 💧 None 💨 1 mph H 69%29.97 inHg

6:00 PM

Mostly cloudy

55° 💧 None 💨 2 mph H 44%29.85 inHg

Monday

12:00 AM

Light rain

59° 💧 None 💨 1 mph H 55%29.68 inHg

6:00 AM

Mostly cloudy night

44° 💧 None 💨 3 mph H 77%29.77 inHg

12:00 PM

Mostly sunny

38° 💧 None 💨 2 mph H 90%29.85 inHg

6:00 PM

Mostly sunny

52° 💧 None 💨 4 mph H 33%29.88 inHg

Tuesday

12:00 AM

Clear night

54° 💧 None 💨 6 mph H 20%29.83 inHg

6:00 AM

Clear night

36° 💧 None 💨 1 mph H 65%29.91 inHg

12:00 PM

Mostly sunny

32° 💧 None 💨 1 mph H 73%29.88 inHg

6:00 PM

Sunny

57° 💧 None 💨 3 mph H 30%29.85 inHg

Wednesday

12:00 AM

Partly cloudy night

60° 💧 None 💨 3 mph H 35%29.77 inHg

6:00 AM

Clear night

41° 💧 None 💨 1 mph H 71%29.83 inHg

12:00 PM

Mostly sunny

38° 💧 None 💨 2 mph H 79%29.94 inHg

6:00 PM

Sunny

59° 💧 None 💨 5 mph H 39%29.94 inHg

Thursday

12:00 AM

Mostly clear night

59° 💧 None 💨 4 mph H 40%29.88 inHg

6:00 AM

Partly cloudy night

45° 💧 None 💨 0 mph H 67%29.91 inHg

12:00 PM

Sunny

40° 💧 None 💨 2 mph H 69%29.91 inHg

6:00 PM

Sunny

62° 💧 None 💨 7 mph H 29%29.85 inHg

Friday

12:00 AM

Clear night

65° 💧 None 💨 7 mph H 28%29.68 inHg

6:00 AM

Clear night

44° 💧 None 💨 2 mph H 56%29.68 inHg

12:00 PM

Mostly cloudy

40° 💧 None 💨 2 mph H 58%29.62 inHg

6:00 PM

Partly cloudy

49° 💧 None 💨 8 mph H 57%29.77 inHg

Saturday

12:00 AM

Mostly cloudy night

43° 💧 None 💨 8 mph H 40%29.94 inHg

6:00 AM

Partly cloudy night

33° 💧 None 💨 4 mph H 73%30.09 inHg

12:00 PM

Mostly sunny

29° 💧 None 💨 1 mph H 79%30.18 inHg

6:00 PM

Partly cloudy

42° 💧 None 💨 8 mph H 44%30.15 inHg

Sunday

12:00 AM

Mostly clear night

47° 💧 None 💨 8 mph H 37%30.03 inHg

6:00 AM

Mostly cloudy night

35° 💧 None 💨 2 mph H 67%30.00 inHg

12:00 PM

Mostly cloudy

36° 💧 None 💨 4 mph H 75%29.85 inHg

6:00 PM

Mostly cloudy

49° 💧 None 💨 7 mph H 48%29.77 inHg

Monday

12:00 AM

Partly cloudy night

55° 💧 None 💨 11 mph H 40%29.47 inHg

In Dewey and, more broadly, across the state of Montana: The morning begins with clear skies and mild temperatures ranging from 43 to 64 degrees Fahrenheit. Light winds from the north, reaching up to 6 mph, will occasionally gust to 14 mph, providing a gentle breeze. Throughout the afternoon, skies will remain clear, and temperatures will stay within the same mild range. Winds are expected to stay light, maintaining a calm and pleasant atmosphere. No precipitation is forecasted, so outdoor plans should be comfortable and enjoyable. Overall, expect a quiet and sunny day with mild temperatures and gentle breezes.

15-Day Weather Outlook for Dewey

TomorrowTomorrow

Sunny 65°/39° 💧 None 💨 5 mph

Tuesday, Sep 22Tue Sep 22

Mostly sunny 65°/41° 💧 None 💨 5 mph

Wednesday, Sep 23Wed Sep 23

Light rain 65°/42° 💧 0.034 in 💨 5 mph

Thursday, Sep 24Thu Sep 24

Partly cloudy 69°/42° 💧 None 💨 11 mph

Friday, Sep 25Fri Sep 25

Light rain 68°/44° 💧 0.006 in 💨 12 mph

Saturday, Sep 26Sat Sep 26

Mostly sunny 50°/34° 💧 None 💨 2 mph

Sunday, Sep 27Sun Sep 27

Mostly cloudy 55°/38° 💧 None 💨 5 mph

Monday, Sep 28Mon Sep 28

Light rain 59°/38° 💧 0.020 in 💨 4 mph

Tuesday, Sep 29Tue Sep 29

Mostly sunny 57°/32° 💧 None 💨 6 mph

Wednesday, Sep 30Wed Sep 30

Partly cloudy 60°/38° 💧 None 💨 5 mph

Thursday, Oct 1Thu Oct 1

Mostly sunny 62°/40° 💧 None 💨 7 mph

Friday, Oct 2Fri Oct 2

Partly cloudy 65°/40° 💧 0.001 in 💨 8 mph

Saturday, Oct 3Sat Oct 3

Mostly cloudy 43°/29° 💧 0.080 in 💨 8 mph

Sunday, Oct 4Sun Oct 4

Mostly cloudy 49°/35° 💧 0.022 in 💨 8 mph

Monday, Oct 5Mon Oct 5

Partly cloudy 55°/55° 💧 0.007 in 💨 11 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Dewey

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Dewey

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 9:00 AM

PM2.5 Fine particles Good 1,6µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 1,6µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Good 42,5µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 2,4µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in Dewey

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 5,3Moderate 😊Good

Tomorrow UV 5,8Moderate 🙂Fair

Tuesday UV 5,0Moderate 🙂Fair

Wednesday UV 5,2Moderate 🙂Fair

Thursday UV 6,0High 🙂Fair

Friday UV 5,0Moderate —Unavailable

Saturday UV 4,0Moderate —Unavailable

Hourly UV index today

9:00 AMUV 0,6 10:00 AMUV 1,6 11:00 AMUV 3,0 12:00 PMUV 4,4 1:00 PMUV 5,3 2:00 PMUV 5,3 3:00 PMUV 4,5 4:00 PMUV 3,1 5:00 PMUV 1,7 6:00 PMUV 0,6 7:00 PMUV 0,0

Today's weather health advice Open today's recommendations.

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

Cold conditions

Dress warmly and protect your hands and feet if you will be outdoors for an extended period.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Dewey

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · DEWEY, MONTANA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 5:00 AM–6:00 AM.

100/100Best-hour score

BEST TIME TONIGHT 5:00 AM–6:00 AM Astronomical darkness: 9:13 PM–5:37 AM

☁ Cloud cover 0% Real hourly forecast for the best viewing hour.

☾ Moonlight 73% Waxing Gibbous · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 83° high at the best hour.

✦ Estimated visible meteors 2–5/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min81%

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

ACTIVE NOW

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

ACTIVE NOW

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

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Forecast data for Dewey were last refreshed today at 8:20 AM. The current forecast period extends through 22/09/2026 at 6:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.