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

Now · 1:59 PM

Fairfield Weather & Hourly Forecast

United States · Montana · 59436

77°F

Mostly sunny

Feels like: 72°F

💧 Humidity 20% 🌡 Pressure 29.80 inHg 💨 Wind 3 mph 👁 Visibility 30.1 mi ☁ Clouds 34% ☀️ UV index 4.4 · Moderate 🌅 Sunrise 7:13 AM 🌇 Sunset 7:27 PM

Hourly Forecast for Fairfield

Today

2:00 PM

Mostly sunny

77° 💧 None 💨 3 mph H 20%29.80 inHg

5:00 PM

Mostly sunny

77° 💧 None 💨 1 mph H 20%29.77 inHg

8:00 PM

Mostly cloudy night

66° 💧 None 💨 4 mph H 34%29.80 inHg

11:00 PM

Mostly cloudy night

60° 💧 None 💨 5 mph H 47%29.85 inHg

Tomorrow

2:00 AM

Mostly cloudy night

56° 💧 None 💨 5 mph H 56%29.88 inHg

5:00 AM

Mostly clear night

50° 💧 None 💨 6 mph H 71%29.88 inHg

8:00 AM

Sunny

51° 💧 None 💨 7 mph H 65%29.94 inHg

11:00 AM

Sunny

70° 💧 None 💨 6 mph H 34%29.97 inHg

2:00 PM

Mostly sunny

76° 💧 0.001 in 💨 6 mph H 25%29.91 inHg

5:00 PM

Mostly sunny

77° 💧 None 💨 6 mph H 20%29.91 inHg

8:00 PM

Mostly cloudy night

66° 💧 None 💨 5 mph H 32%29.94 inHg

11:00 PM

Clear night

58° 💧 None 💨 4 mph H 42%30.00 inHg

Thursday

2:00 AM

Partly cloudy night

53° 💧 None 💨 4 mph H 59%30.00 inHg

5:00 AM

Mostly clear night

50° 💧 None 💨 5 mph H 71%30.00 inHg

8:00 AM

Mostly sunny

51° 💧 None 💨 6 mph H 67%30.03 inHg

11:00 AM

Sunny

69° 💧 None 💨 7 mph H 40%30.00 inHg

Today

2:00 PM

Mostly sunny

77° 💧 None 💨 3 mph H 20%29.80 inHg

3:00 PM

Sunny

78° 💧 None 💨 3 mph H 19%29.80 inHg

4:00 PM

Sunny

78° 💧 None 💨 3 mph H 20%29.77 inHg

5:00 PM

Mostly sunny

77° 💧 None 💨 1 mph H 20%29.77 inHg

6:00 PM

Partly cloudy

76° 💧 None 💨 3 mph H 23%29.77 inHg

7:00 PM

Mostly cloudy

70° 💧 None 💨 3 mph H 32%29.80 inHg

8:00 PM

Mostly cloudy night

66° 💧 None 💨 4 mph H 34%29.80 inHg

9:00 PM

Mostly cloudy night

66° 💧 None 💨 3 mph H 35%29.83 inHg

10:00 PM

Mostly cloudy night

63° 💧 None 💨 6 mph H 40%29.85 inHg

11:00 PM

Mostly cloudy night

60° 💧 None 💨 5 mph H 47%29.85 inHg

Tomorrow

12:00 AM

Mostly cloudy night

58° 💧 None 💨 5 mph H 50%29.85 inHg

1:00 AM

Mostly cloudy night

57° 💧 None 💨 5 mph H 53%29.85 inHg

2:00 AM

Mostly cloudy night

56° 💧 None 💨 5 mph H 56%29.88 inHg

3:00 AM

Mostly cloudy night

54° 💧 None 💨 5 mph H 63%29.88 inHg

4:00 AM

Mostly clear night

52° 💧 None 💨 5 mph H 68%29.88 inHg

5:00 AM

Mostly clear night

50° 💧 None 💨 6 mph H 71%29.88 inHg

6:00 AM

Partly cloudy night

50° 💧 None 💨 6 mph H 70%29.91 inHg

7:00 AM

Clear night

50° 💧 None 💨 6 mph H 68%29.91 inHg

8:00 AM

Sunny

51° 💧 None 💨 7 mph H 65%29.94 inHg

9:00 AM

Sunny

56° 💧 None 💨 7 mph H 54%29.94 inHg

10:00 AM

Sunny

63° 💧 None 💨 6 mph H 43%29.97 inHg

11:00 AM

Sunny

70° 💧 None 💨 6 mph H 34%29.97 inHg

12:00 PM

Mostly sunny

73° 💧 None 💨 7 mph H 30%29.94 inHg

1:00 PM

Mostly sunny

75° 💧 None 💨 6 mph H 27%29.94 inHg

2:00 PM

Mostly sunny

76° 💧 None 💨 6 mph H 25%29.91 inHg

3:00 PM

Mostly sunny

77° 💧 0.001 in 💨 6 mph H 22%29.91 inHg

4:00 PM

Mostly sunny

77° 💧 None 💨 5 mph H 20%29.91 inHg

5:00 PM

Mostly sunny

77° 💧 None 💨 6 mph H 20%29.91 inHg

6:00 PM

Mostly sunny

75° 💧 None 💨 6 mph H 21%29.91 inHg

7:00 PM

Mostly sunny

70° 💧 None 💨 5 mph H 28%29.91 inHg

8:00 PM

Mostly cloudy night

66° 💧 None 💨 5 mph H 32%29.94 inHg

9:00 PM

Mostly cloudy night

62° 💧 None 💨 3 mph H 40%29.97 inHg

10:00 PM

Mostly clear night

60° 💧 None 💨 4 mph H 43%30.00 inHg

11:00 PM

Clear night

58° 💧 None 💨 4 mph H 42%30.00 inHg

Thursday

12:00 AM

Clear night

56° 💧 None 💨 4 mph H 45%30.00 inHg

1:00 AM

Clear night

55° 💧 None 💨 5 mph H 52%30.00 inHg

2:00 AM

Partly cloudy night

53° 💧 None 💨 4 mph H 59%30.00 inHg

3:00 AM

Clear night

52° 💧 None 💨 5 mph H 66%30.03 inHg

4:00 AM

Clear night

50° 💧 None 💨 5 mph H 69%30.03 inHg

5:00 AM

Mostly clear night

50° 💧 None 💨 5 mph H 71%30.00 inHg

6:00 AM

Clear night

50° 💧 None 💨 5 mph H 70%30.03 inHg

7:00 AM

Mostly clear night

50° 💧 None 💨 5 mph H 70%30.03 inHg

8:00 AM

Mostly sunny

51° 💧 None 💨 6 mph H 67%30.03 inHg

9:00 AM

Mostly sunny

57° 💧 None 💨 6 mph H 56%30.06 inHg

10:00 AM

Partly cloudy

63° 💧 None 💨 5 mph H 48%30.03 inHg

11:00 AM

Sunny

69° 💧 None 💨 7 mph H 40%30.00 inHg

12:00 PM

Mostly sunny

74° 💧 None 💨 8 mph H 31%29.97 inHg

1:00 PM

Mostly sunny

77° 💧 None 💨 9 mph H 25%29.94 inHg

2:00 PM

Sunny

79° 💧 None 💨 9 mph H 22%29.91 inHg

3:00 PM

Sunny

80° 💧 None 💨 10 mph H 20%29.88 inHg

4:00 PM

Sunny

81° 💧 None 💨 11 mph H 19%29.85 inHg

5:00 PM

Sunny

81° 💧 None 💨 11 mph H 18%29.83 inHg

6:00 PM

Sunny

79° 💧 None 💨 11 mph H 21%29.83 inHg

7:00 PM

Sunny

74° 💧 None 💨 6 mph H 27%29.83 inHg

8:00 PM

Clear night

68° 💧 None 💨 5 mph H 33%29.83 inHg

9:00 PM

Clear night

65° 💧 None 💨 4 mph H 38%29.83 inHg

10:00 PM

Clear night

63° 💧 None 💨 3 mph H 44%29.83 inHg

11:00 PM

Clear night

61° 💧 None 💨 3 mph H 45%29.83 inHg

Friday

12:00 AM

Clear night

60° 💧 None 💨 4 mph H 46%29.83 inHg

1:00 AM

Clear night

60° 💧 None 💨 6 mph H 44%29.80 inHg

2:00 AM

Clear night

60° 💧 None 💨 6 mph H 46%29.80 inHg

3:00 AM

Clear night

59° 💧 None 💨 5 mph H 48%29.80 inHg

4:00 AM

Clear night

58° 💧 None 💨 5 mph H 50%29.80 inHg

5:00 AM

Clear night

57° 💧 None 💨 6 mph H 51%29.77 inHg

6:00 AM

Clear night

56° 💧 None 💨 6 mph H 52%29.77 inHg

9:00 AM

Sunny

65° 💧 None 💨 12 mph H 37%29.74 inHg

12:00 PM

Mostly sunny

78° 💧 None 💨 17 mph H 21%29.65 inHg

3:00 PM

Partly cloudy

84° 💧 None 💨 15 mph H 18%29.53 inHg

6:00 PM

Partly cloudy

80° 💧 None 💨 14 mph H 23%29.50 inHg

9:00 PM

Mostly clear night

67° 💧 None 💨 19 mph H 41%29.59 inHg

Saturday

12:00 AM

Light rain

53° 💧 None 💨 12 mph H 76%29.80 inHg

3:00 AM

Mostly clear night

51° 💧 None 💨 12 mph H 55%29.85 inHg

6:00 AM

Partly cloudy night

48° 💧 None 💨 19 mph H 53%29.88 inHg

9:00 AM

Partly cloudy

50° 💧 None 💨 18 mph H 50%29.91 inHg

12:00 PM

Sunny

55° 💧 None 💨 11 mph H 37%29.94 inHg

3:00 PM

Sunny

61° 💧 None 💨 15 mph H 26%29.88 inHg

6:00 PM

Sunny

58° 💧 None 💨 15 mph H 27%29.91 inHg

9:00 PM

Clear night

50° 💧 None 💨 11 mph H 41%30.00 inHg

Sunday

12:00 AM

Mostly clear night

46° 💧 None 💨 9 mph H 49%30.03 inHg

3:00 AM

Mostly cloudy night

44° 💧 None 💨 7 mph H 55%30.03 inHg

6:00 AM

Mostly cloudy night

41° 💧 None 💨 6 mph H 63%30.06 inHg

9:00 AM

Mostly cloudy

45° 💧 None 💨 3 mph H 59%30.09 inHg

12:00 PM

Partly cloudy

54° 💧 None 💨 1 mph H 37%30.00 inHg

3:00 PM

Overcast

60° 💧 None 💨 5 mph H 25%29.94 inHg

6:00 PM

Mostly cloudy

60° 💧 None 💨 6 mph H 26%29.91 inHg

9:00 PM

Mostly cloudy night

52° 💧 None 💨 5 mph H 43%29.94 inHg

Monday

12:00 AM

Overcast night

49° 💧 None 💨 0 mph H 51%29.97 inHg

3:00 AM

Mostly cloudy night

46° 💧 None 💨 3 mph H 66%29.97 inHg

6:00 AM

Partly cloudy night

43° 💧 None 💨 2 mph H 74%29.97 inHg

12:00 PM

Sunny

58° 💧 None 💨 2 mph H 37%29.94 inHg

6:00 PM

Mostly sunny

64° 💧 None 💨 6 mph H 28%29.80 inHg

Tuesday

12:00 AM

Partly cloudy night

49° 💧 None 💨 5 mph H 54%29.83 inHg

6:00 AM

Clear night

47° 💧 None 💨 8 mph H 54%29.83 inHg

12:00 PM

Mostly cloudy

61° 💧 None 💨 11 mph H 36%29.83 inHg

6:00 PM

Mostly cloudy

69° 💧 None 💨 11 mph H 21%29.68 inHg

Wednesday

12:00 AM

Mostly clear night

51° 💧 None 💨 2 mph H 49%29.68 inHg

6:00 AM

Overcast night

48° 💧 None 💨 2 mph H 53%29.68 inHg

12:00 PM

Mostly cloudy

63° 💧 None 💨 5 mph H 28%29.65 inHg

6:00 PM

Overcast

60° 💧 None 💨 13 mph H 30%29.68 inHg

Thursday

12:00 AM

Mostly cloudy night

49° 💧 None 💨 10 mph H 50%29.85 inHg

6:00 AM

Partly cloudy night

45° 💧 None 💨 13 mph H 61%30.00 inHg

12:00 PM

Light rain

52° 💧 None 💨 14 mph H 46%30.12 inHg

6:00 PM

Partly cloudy

55° 💧 None 💨 14 mph H 37%30.15 inHg

Friday

12:00 AM

Clear night

44° 💧 None 💨 7 mph H 57%30.24 inHg

6:00 AM

Clear night

37° 💧 None 💨 5 mph H 78%30.27 inHg

12:00 PM

Sunny

54° 💧 None 💨 2 mph H 39%30.27 inHg

6:00 PM

Sunny

58° 💧 None 💨 7 mph H 29%30.12 inHg

Saturday

12:00 AM

Clear night

43° 💧 None 💨 1 mph H 60%30.12 inHg

6:00 AM

Mostly clear night

37° 💧 None 💨 4 mph H 67%30.06 inHg

12:00 PM

Partly cloudy

63° 💧 None 💨 10 mph H 23%29.94 inHg

6:00 PM

Overcast

67° 💧 None 💨 9 mph H 18%29.80 inHg

Sunday

12:00 AM

Clear night

53° 💧 None 💨 8 mph H 36%29.80 inHg

6:00 AM

Mostly cloudy night

47° 💧 None 💨 7 mph H 42%29.83 inHg

12:00 PM

Mostly cloudy

60° 💧 None 💨 1 mph H 25%29.85 inHg

6:00 PM

Partly cloudy

61° 💧 None 💨 7 mph H 19%29.80 inHg

Monday

12:00 AM

Mostly clear night

44° 💧 None 💨 6 mph H 67%29.94 inHg

6:00 AM

Overcast night

42° 💧 None 💨 10 mph H 69%30.03 inHg

12:00 PM

Light rain

40° 💧 None 💨 9 mph H 87%30.12 inHg

6:00 PM

Overcast

46° 💧 None 💨 9 mph H 58%30.09 inHg

Tuesday

12:00 AM

Light rain

41° 💧 None 💨 11 mph H 80%30.18 inHg

6:00 AM

Light rain

39° 💧 None 💨 14 mph H 95%30.18 inHg

12:00 PM

Light rain

40° 💧 None 💨 18 mph H 92%30.21 inHg

6:00 PM

Light rain

38° 💧 None 💨 15 mph H 94%30.24 inHg

Wednesday

12:00 AM

Light rain

37° 💧 None 💨 12 mph H 98%30.27 inHg

6:00 AM

Light rain

35° 💧 None 💨 5 mph H 97%30.33 inHg

In Fairfield and, more broadly, across the state of Montana: Clear skies are expected tonight with temperatures holding steady around 62 degrees. Light southeast winds will prevail, generally blowing at 3 to 5 mph, with occasional gusts reaching up to 10 mph. No precipitation is forecasted for the evening and the upcoming hours. It will remain a cool and tranquil night, making it a good time to enjoy the clear sky and gentle breeze. Temperatures are unlikely to fluctuate significantly through the evening, providing a calm and comfortable environment.

15-Day Weather Outlook for Fairfield

TomorrowTomorrow

Overcast 78°/52° 💧 None 💨 8 mph

Thursday, Sep 24Thu Sep 24

Mostly sunny 82°/50° 💧 None 💨 11 mph

Friday, Sep 25Fri Sep 25

Mostly sunny 85°/60° 💧 0.001 in 💨 17 mph

Saturday, Sep 26Sat Sep 26

Mostly sunny 61°/50° 💧 0.001 in 💨 19 mph

Sunday, Sep 27Sun Sep 27

Mostly cloudy 64°/41° 💧 None 💨 7 mph

Monday, Sep 28Mon Sep 28

Mostly cloudy 62°/48° 💧 0.002 in 💨 3 mph

Tuesday, Sep 29Tue Sep 29

Mostly sunny 69°/50° 💧 None 💨 13 mph

Wednesday, Sep 30Wed Sep 30

Mostly sunny 74°/52° 💧 None 💨 15 mph

Thursday, Oct 1Thu Oct 1

Mostly sunny 73°/46° 💧 None 💨 11 mph

Friday, Oct 2Fri Oct 2

Mostly cloudy 69°/47° 💧 0.014 in 💨 10 mph

Saturday, Oct 3Sat Oct 3

Partly cloudy 58°/43° 💧 0.024 in 💨 7 mph

Sunday, Oct 4Sun Oct 4

Partly cloudy 64°/37° 💧 None 💨 11 mph

Monday, Oct 5Mon Oct 5

Overcast 73°/57° 💧 0.001 in 💨 11 mph

Tuesday, Oct 6Tue Oct 6

Mostly cloudy 76°/53° 💧 None 💨 13 mph

Wednesday, Oct 7Wed Oct 7

Mostly sunny 80°/80° 💧 None 💨 6 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Fairfield

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Fairfield

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 2:00 PM

PM2.5 Fine particles Good 1,0µg/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 1,4µg/m³

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

O₃ Ozone Fair 83,1µg/m³

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

NO₂ Nitrogen dioxide Good 0,6µg/m³

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

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in Fairfield

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 4,4Moderate 🙂Fair

Tomorrow UV 4,3Moderate 🙂Fair

Thursday UV 4,5Moderate 🙂Fair

Friday UV 3,9Moderate 😐Moderate

Saturday UV 5,0Moderate 🙂Fair

Sunday UV 4,0Moderate —Unavailable

Monday UV 3,0Moderate —Unavailable

Hourly UV index today

2:00 PMUV 4,4 3:00 PMUV 3,7 4:00 PMUV 2,5 5:00 PMUV 1,1 6:00 PMUV 0,3 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.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed. Dry air can increase hydration needs.

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 Fairfield

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · FAIRFIELD, MONTANA

Tonight's Stargazing & Shooting Stars

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

88/100Best-hour score

BEST TIME TONIGHT 5:00 AM–6:00 AM Astronomical darkness: 9:10 PM–5:32 AM

☁ Cloud cover 16% Real hourly forecast for the best viewing hour.

☾ Moonlight 89% Waxing Gibbous · Moon below the horizon at the best viewing hour.

☄ Meteor activity Southern Taurids Reference ZHR 7 · Radiant 57° high at the best hour.

✦ Estimated visible meteors 1–3/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min66%

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

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

NOV 6–NOV 30

LeonidsStart NOV 6 · Peak NOV 17 · End NOV 30 · ZHR 15 · 52% 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 Fairfield were last refreshed today at 1:59 PM. The current forecast period extends through 24/09/2026 at 11:00 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.