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Now · 9:48 PM

St. Ignatius Weather & Hourly Forecast

United States · Montana · 59865

56°F

Mostly cloudy night

Feels like: 57°F

💧 Humidity 91% 🌡 Pressure 29.88 inHg 💨 Wind 0 mph 👁 Visibility 5.4 mi ☁ Clouds 84% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for St. Ignatius

Today

10:00 PM

Mostly cloudy night

56° 💧 None 💨 0 mph H 91%29.88 inHg

Tomorrow

1:00 AM

Overcast night

54° 💧 0.018 in 💨 0 mph H 91%29.88 inHg

4:00 AM

Light rain

52° 💧 0.078 in 💨 1 mph H 97%29.88 inHg

7:00 AM

Light rain

51° 💧 0.212 in 💨 0 mph H 96%29.88 inHg

10:00 AM

Moderate rain

51° 💧 0.289 in 💨 2 mph H 94%30.00 inHg

1:00 PM

Light rain

51° 💧 0.041 in 💨 5 mph H 88%30.03 inHg

4:00 PM

Light rain

56° 💧 0.120 in 💨 3 mph H 68%30.03 inHg

7:00 PM

Light rain

52° 💧 0.051 in 💨 4 mph H 92%30.06 inHg

10:00 PM

Light rain

49° 💧 0.007 in 💨 3 mph H 93%30.12 inHg

Tuesday

1:00 AM

Overcast night

49° 💧 None 💨 3 mph H 90%30.12 inHg

4:00 AM

Overcast night

50° 💧 0.002 in 💨 3 mph H 88%30.15 inHg

7:00 AM

Light rain

50° 💧 0.032 in 💨 3 mph H 90%30.18 inHg

10:00 AM

Light rain

51° 💧 0.062 in 💨 3 mph H 93%30.24 inHg

1:00 PM

Light rain

54° 💧 0.005 in 💨 4 mph H 79%30.27 inHg

4:00 PM

Overcast

59° 💧 None 💨 3 mph H 59%30.27 inHg

7:00 PM

Mostly sunny

59° 💧 None 💨 3 mph H 61%30.24 inHg

Today

10:00 PM

Mostly cloudy night

56° 💧 None 💨 0 mph H 91%29.88 inHg

11:00 PM

Mostly cloudy night

55° 💧 None 💨 1 mph H 92%29.91 inHg

Tomorrow

12:00 AM

Mostly cloudy night

54° 💧 None 💨 1 mph H 91%29.88 inHg

1:00 AM

Overcast night

54° 💧 None 💨 0 mph H 91%29.88 inHg

2:00 AM

Light rain

53° 💧 0.011 in 💨 1 mph H 95%29.88 inHg

3:00 AM

Light rain

52° 💧 0.008 in 💨 1 mph H 97%29.88 inHg

4:00 AM

Light rain

52° 💧 0.021 in 💨 1 mph H 97%29.88 inHg

5:00 AM

Light rain

52° 💧 0.020 in 💨 0 mph H 94%29.88 inHg

6:00 AM

Light rain

51° 💧 0.037 in 💨 1 mph H 96%29.88 inHg

7:00 AM

Light rain

51° 💧 0.072 in 💨 0 mph H 96%29.88 inHg

8:00 AM

Light rain

52° 💧 0.073 in 💨 1 mph H 92%29.91 inHg

9:00 AM

Light rain

51° 💧 0.068 in 💨 1 mph H 93%29.97 inHg

10:00 AM

Moderate rain

51° 💧 0.112 in 💨 2 mph H 94%30.00 inHg

11:00 AM

Moderate rain

50° 💧 0.111 in 💨 4 mph H 93%30.03 inHg

12:00 PM

Light rain

50° 💧 0.066 in 💨 5 mph H 91%30.03 inHg

1:00 PM

Light rain

51° 💧 0.021 in 💨 5 mph H 88%30.03 inHg

2:00 PM

Light rain

53° 💧 0.011 in 💨 4 mph H 78%30.03 inHg

3:00 PM

Light rain

54° 💧 0.008 in 💨 3 mph H 74%30.03 inHg

4:00 PM

Light rain

56° 💧 0.007 in 💨 3 mph H 68%30.03 inHg

5:00 PM

Light rain

54° 💧 0.065 in 💨 3 mph H 86%30.03 inHg

6:00 PM

Light rain

53° 💧 0.048 in 💨 4 mph H 90%30.06 inHg

7:00 PM

Light rain

52° 💧 0.019 in 💨 4 mph H 92%30.06 inHg

8:00 PM

Light rain

51° 💧 0.008 in 💨 3 mph H 94%30.09 inHg

9:00 PM

Light rain

50° 💧 0.024 in 💨 2 mph H 95%30.12 inHg

10:00 PM

Light rain

49° 💧 0.007 in 💨 3 mph H 93%30.12 inHg

11:00 PM

Mostly cloudy night

49° 💧 None 💨 3 mph H 91%30.12 inHg

Tuesday

12:00 AM

Mostly cloudy night

49° 💧 None 💨 3 mph H 90%30.12 inHg

1:00 AM

Overcast night

49° 💧 None 💨 3 mph H 90%30.12 inHg

2:00 AM

Overcast night

49° 💧 None 💨 4 mph H 89%30.12 inHg

3:00 AM

Overcast night

50° 💧 None 💨 3 mph H 88%30.12 inHg

4:00 AM

Overcast night

50° 💧 None 💨 3 mph H 88%30.15 inHg

5:00 AM

Overcast night

50° 💧 0.000 in 💨 3 mph H 87%30.15 inHg

6:00 AM

Overcast night

50° 💧 0.001 in 💨 3 mph H 87%30.18 inHg

7:00 AM

Light rain

50° 💧 0.007 in 💨 3 mph H 90%30.18 inHg

8:00 AM

Light rain

50° 💧 0.011 in 💨 3 mph H 93%30.21 inHg

9:00 AM

Light rain

50° 💧 0.015 in 💨 3 mph H 94%30.24 inHg

10:00 AM

Light rain

51° 💧 0.024 in 💨 3 mph H 93%30.24 inHg

11:00 AM

Light rain

51° 💧 0.028 in 💨 4 mph H 93%30.27 inHg

12:00 PM

Light rain

53° 💧 0.010 in 💨 5 mph H 90%30.27 inHg

1:00 PM

Light rain

54° 💧 0.004 in 💨 4 mph H 79%30.27 inHg

2:00 PM

Overcast

56° 💧 0.001 in 💨 3 mph H 67%30.27 inHg

3:00 PM

Overcast

58° 💧 0.000 in 💨 2 mph H 61%30.27 inHg

4:00 PM

Overcast

59° 💧 None 💨 3 mph H 59%30.27 inHg

5:00 PM

Mostly cloudy

60° 💧 None 💨 3 mph H 59%30.24 inHg

6:00 PM

Partly cloudy

60° 💧 None 💨 4 mph H 57%30.24 inHg

7:00 PM

Mostly sunny

59° 💧 None 💨 3 mph H 61%30.24 inHg

8:00 PM

Mostly sunny

55° 💧 None 💨 4 mph H 70%30.24 inHg

9:00 PM

Clear night

53° 💧 None 💨 4 mph H 75%30.24 inHg

10:00 PM

Clear night

51° 💧 None 💨 4 mph H 79%30.27 inHg

11:00 PM

Clear night

50° 💧 None 💨 4 mph H 82%30.27 inHg

Wednesday

12:00 AM

Clear night

49° 💧 None 💨 4 mph H 83%30.27 inHg

1:00 AM

Clear night

49° 💧 None 💨 4 mph H 81%30.27 inHg

2:00 AM

Clear night

49° 💧 None 💨 4 mph H 79%30.27 inHg

3:00 AM

Clear night

49° 💧 None 💨 4 mph H 78%30.27 inHg

4:00 AM

Clear night

48° 💧 None 💨 4 mph H 78%30.27 inHg

5:00 AM

Clear night

48° 💧 None 💨 4 mph H 79%30.27 inHg

6:00 AM

Clear night

47° 💧 None 💨 4 mph H 79%30.27 inHg

3:00 PM

Mostly sunny

67° 💧 None 💨 2 mph H 39%30.21 inHg

6:00 PM

Mostly sunny

67° 💧 None 💨 1 mph H 41%30.15 inHg

9:00 PM

Mostly clear night

58° 💧 None 💨 1 mph H 52%30.12 inHg

Thursday

12:00 AM

Partly cloudy night

53° 💧 None 💨 2 mph H 49%30.09 inHg

3:00 AM

Mostly clear night

52° 💧 None 💨 3 mph H 50%30.03 inHg

6:00 AM

Mostly clear night

51° 💧 None 💨 3 mph H 56%30.00 inHg

9:00 AM

Sunny

58° 💧 None 💨 4 mph H 52%30.00 inHg

12:00 PM

Sunny

67° 💧 None 💨 5 mph H 35%29.94 inHg

3:00 PM

Partly cloudy

72° 💧 None 💨 10 mph H 29%29.83 inHg

6:00 PM

Partly cloudy

69° 💧 None 💨 8 mph H 33%29.74 inHg

9:00 PM

Light rain

60° 💧 None 💨 6 mph H 57%29.74 inHg

Friday

12:00 AM

Light rain

53° 💧 None 💨 6 mph H 88%29.80 inHg

3:00 AM

Clear night

48° 💧 None 💨 4 mph H 88%29.83 inHg

6:00 AM

Mostly clear night

44° 💧 None 💨 3 mph H 82%29.91 inHg

9:00 AM

Light rain

46° 💧 None 💨 4 mph H 85%29.97 inHg

12:00 PM

Light rain

51° 💧 None 💨 5 mph H 57%30.00 inHg

3:00 PM

Light rain

54° 💧 None 💨 2 mph H 50%29.97 inHg

6:00 PM

Partly cloudy

54° 💧 None 💨 2 mph H 45%29.94 inHg

9:00 PM

Overcast night

47° 💧 None 💨 1 mph H 72%29.94 inHg

Saturday

12:00 AM

Overcast night

45° 💧 None 💨 2 mph H 83%29.97 inHg

3:00 AM

Light rain

45° 💧 None 💨 4 mph H 83%29.94 inHg

6:00 AM

Moderate rain

43° 💧 None 💨 2 mph H 96%29.94 inHg

9:00 AM

Moderate rain

40° 💧 None 💨 2 mph H 99%30.00 inHg

12:00 PM

Moderate rain

40° 💧 None 💨 3 mph H 97%30.06 inHg

6:00 PM

Light rain

43° 💧 None 💨 2 mph H 93%30.03 inHg

Sunday

12:00 AM

Light rain

44° 💧 None 💨 3 mph H 80%30.09 inHg

6:00 AM

Light rain

41° 💧 None 💨 1 mph H 92%30.18 inHg

12:00 PM

Partly cloudy

39° 💧 None 💨 1 mph H 96%30.21 inHg

6:00 PM

Light rain

44° 💧 None 💨 3 mph H 82%30.21 inHg

Monday

12:00 AM

Moderate rain

47° 💧 None 💨 3 mph H 80%30.12 inHg

6:00 AM

Partly cloudy night

37° 💧 None 💨 3 mph H 97%30.12 inHg

12:00 PM

Sunny

38° 💧 None 💨 3 mph H 76%30.12 inHg

6:00 PM

Sunny

53° 💧 None 💨 3 mph H 51%30.12 inHg

Tuesday

12:00 AM

Clear night

57° 💧 None 💨 1 mph H 44%30.00 inHg

6:00 AM

Clear night

44° 💧 None 💨 2 mph H 70%30.00 inHg

12:00 PM

Sunny

40° 💧 None 💨 4 mph H 78%29.97 inHg

6:00 PM

Partly cloudy

61° 💧 None 💨 3 mph H 46%29.94 inHg

Wednesday

12:00 AM

Partly cloudy night

65° 💧 None 💨 1 mph H 30%29.85 inHg

6:00 AM

Clear night

49° 💧 None 💨 2 mph H 47%29.91 inHg

12:00 PM

Partly cloudy

44° 💧 None 💨 4 mph H 61%29.97 inHg

6:00 PM

Mostly cloudy

65° 💧 None 💨 3 mph H 40%30.03 inHg

Thursday

12:00 AM

Partly cloudy night

66° 💧 None 💨 3 mph H 47%30.03 inHg

6:00 AM

Mostly cloudy night

52° 💧 None 💨 6 mph H 71%30.18 inHg

12:00 PM

Mostly sunny

46° 💧 None 💨 4 mph H 90%30.33 inHg

6:00 PM

Mostly sunny

62° 💧 None 💨 3 mph H 56%30.36 inHg

Friday

12:00 AM

Clear night

65° 💧 None 💨 2 mph H 57%30.30 inHg

6:00 AM

Clear night

49° 💧 None 💨 6 mph H 81%30.42 inHg

12:00 PM

Mostly sunny

47° 💧 None 💨 5 mph H 91%30.39 inHg

6:00 PM

Mostly sunny

67° 💧 None 💨 1 mph H 53%30.21 inHg

Saturday

12:00 AM

Clear night

76° 💧 None 💨 2 mph H 47%29.97 inHg

6:00 AM

Clear night

59° 💧 None 💨 5 mph H 73%29.97 inHg

12:00 PM

Sunny

55° 💧 None 💨 1 mph H 74%30.09 inHg

6:00 PM

Sunny

64° 💧 None 💨 3 mph H 48%30.06 inHg

Sunday

12:00 AM

Clear night

64° 💧 None 💨 3 mph H 49%29.94 inHg

6:00 AM

Clear night

53° 💧 None 💨 1 mph H 64%29.94 inHg

12:00 PM

Partly cloudy

50° 💧 None 💨 1 mph H 70%29.94 inHg

6:00 PM

Mostly sunny

56° 💧 None 💨 6 mph H 34%30.00 inHg

Monday

12:00 AM

Mostly clear night

54° 💧 None 💨 4 mph H 44%30.00 inHg

6:00 AM

Clear night

46° 💧 None 💨 1 mph H 61%30.09 inHg

12:00 PM

Mostly sunny

42° 💧 None 💨 2 mph H 71%30.15 inHg

In St. Ignatius and, more broadly, across the state of Montana: This evening, expect a mix of sun and clouds with temperatures holding steady around 60 degrees. Light west winds will generally blow at about 3 mph, with occasional gusts reaching up to 6 mph. A slight chance of rain remains, with an estimated accumulation of around 0.08 inches in the next few hours. Overall, it should be a relatively mild evening with mild winds and the possibility of light rain.

15-Day Weather Outlook for St. Ignatius

Tuesday, Sep 8Tue Sep 8

Mostly cloudy 60°/49° 💧 None 💨 5 mph

Wednesday, Sep 9Wed Sep 9

Partly cloudy 67°/47° 💧 0.811 in 💨 4 mph

Thursday, Sep 10Thu Sep 10

Mostly sunny 72°/51° 💧 None 💨 10 mph

Friday, Sep 11Fri Sep 11

Light rain 69°/44° 💧 0.318 in 💨 8 mph

Saturday, Sep 12Sat Sep 12

Moderate rain 54°/40° 💧 0.571 in 💨 4 mph

Sunday, Sep 13Sun Sep 13

Light rain 44°/39° 💧 0.084 in 💨 3 mph

Monday, Sep 14Mon Sep 14

Moderate rain 47°/37° 💧 0.156 in 💨 3 mph

Tuesday, Sep 15Tue Sep 15

Sunny 57°/40° 💧 None 💨 4 mph

Wednesday, Sep 16Wed Sep 16

Partly cloudy 65°/44° 💧 None 💨 4 mph

Thursday, Sep 17Thu Sep 17

Mostly cloudy 66°/46° 💧 None 💨 6 mph

Friday, Sep 18Fri Sep 18

Mostly sunny 65°/47° 💧 None 💨 6 mph

Saturday, Sep 19Sat Sep 19

Mostly sunny 76°/55° 💧 None 💨 5 mph

Sunday, Sep 20Sun Sep 20

Partly cloudy 64°/50° 💧 0.001 in 💨 3 mph

Monday, Sep 21Mon Sep 21

Mostly sunny 56°/42° 💧 0.008 in 💨 6 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in St. Ignatius

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for St. Ignatius

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 10:00 PM

PM2.5 Fine particles Good 0,6µg/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 0,6µg/m³

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

O₃ Ozone Good 38,2µg/m³

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

NO₂ Nitrogen dioxide Good 0,5µg/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 St. Ignatius

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 3,8Moderate 😊Good

Tomorrow UV 1,0Low 🙂Fair

Tuesday UV 4,9Moderate 🙂Fair

Wednesday UV 5,8Moderate 🙂Fair

Thursday UV 5,6Moderate 🙂Fair

Friday UV 4,0Moderate —Unavailable

Saturday UV 3,0Moderate —Unavailable

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.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

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 St. Ignatius

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · ST. IGNATIUS, MONTANA

Tonight's Stargazing & Shooting Stars

Local night-sky conditions and meteor activity for Jasper.

47/100Best-hour score

No good viewing window tonight Astronomical darkness exists, but current sky conditions are unfavorable.

☁ Cloud cover 70% Real hourly forecast for the best viewing hour.

☾ Moonlight 22% Waning Crescent · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 31° high at the best hour.

✦ Estimated visible meteors Poor visibility Meteor activity may occur above the clouds, but local viewing conditions are not suitable.

Chance ≥1 meteor in 30 minNot meaningful

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

UPCOMING

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.

DISCOVER WEATHER NEARBY Weather in other cities

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Forecast data for St. Ignatius were last refreshed today at 9:48 PM. The current forecast period extends through 08/09/2026 at 7:00 PM. 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.