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Weather in Great Falls, United States 🇺🇸

Current Weather in Great Falls

Clear
19°C
Feels like 15°C. Clear.
🌬️ 9 km/h SSW
💧 25% Humidity
🧭 1014 hPa
👁️ 10.0 km Visibility
☀️ UV Index: 0.0
🌡️ Dew Point: -1°C
🌅 Sunrise: 06:29 AM
🌇 Sunset: 08:27 PM
Map Overlays:

As of now, Great Falls is 19°C and clear, feeling like 15°C. The air is at 25% humidity and winds are about 9 km/h, and the UV index is 0 (low). The next few days in Great Falls look set for about 14°C up to 36°C.

Hourly Forecast for Great Falls

03:00
Clear
19°
0%
04:00
Clear
16°
1%
05:00
Clear
14°
4%
06:00
Overcast
14°
19%
07:00
Sunny
14°
8%
08:00
Partly Cloudy
17°
7%
09:00
Overcast
19°
16%
10:00
Overcast
21°
13%
11:00
Partly Cloudy
24°
3%
12:00
Cloudy
26°
6%
13:00
Sunny
26°
1%
14:00
Overcast
30°
9%
15:00
Sunny
29°
1%
16:00
Sunny
30°
1%
17:00
Overcast
31°
9%
18:00
Overcast
30°
9%
19:00
Overcast
29°
9%
20:00
Overcast
27°
9%
21:00
Overcast
24°
9%
22:00
Overcast
24°
10%
23:00
Overcast
23°
10%
00:00
Clear
22°
1%
01:00
Clear
21°
1%
02:00
Partly Cloudy
20°
5%

14-Day Forecast for Great Falls

Fri, Aug 21
Overcast Overcast
31° / 14°
Sat, Aug 22
Overcast Overcast
36° / 20°
Sun, Aug 23
Sunny Sunny
33° / 19°
Mon, Aug 24
Sunny Sunny
28° / 14°
Tue, Aug 25
Sunny Sunny
34° / 16°
Wed, Aug 26
Overcast Overcast
36° / 20°
Thu, Aug 27
Sunny Sunny
30° / 17°
Fri, Aug 28
Sunny Sunny
30° / 14°
Sat, Aug 29
Sunny Sunny
31° / 13°
Sun, Aug 30
Overcast Overcast
32° / 16°
Mon, Aug 31
Sunny Sunny
26° / 11°
Tue, Sep 01
Overcast Overcast
28° / 10°
Wed, Sep 02
Overcast Overcast
30° / 17°
Thu, Sep 03
Overcast Overcast
21° / 16°

Additional Forecasts for Great Falls

Air Quality

💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 138.0 μg/m³
O₃ (Ozone) 39.0 μg/m³
NO₂ (Nitrogen Dioxide) 11.8 μg/m³
SO₂ (Sulphur Dioxide) 0.4 μg/m³
PM2.5 (Fine particles) 15.1 μg/m³
PM10 (Coarse particles) 15.5 μg/m³

Historical Weather

Weather Forecasts for Other Cities in United States

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Best Time to Be Outside in Great Falls Today

The most comfortable window in Great Falls today looks like 09:00 to 12:00, when it is around 21°C. It should stay dry through that window. No significant rain is expected in the next several hours.

Frequently Asked Questions about Weather in Great Falls

What is the temperature in Great Falls right now?

The current temperature in Great Falls is 19°C (66°F), clear (feels like 15°C).

What's the weather like in Great Falls right now?

Conditions in Great Falls right now: Clear, humidity 25%, wind 9 km/h SSW.

What is today's forecast for Great Falls?

Today in Great Falls: high 31°C, low 14°C, overcast. Chance of rain: 4%.

What is the 7-day weather forecast for Great Falls?

Daily highs and lows for Great Falls:

  • 2026-08-21: 31°C / 14°C
  • 2026-08-22: 36°C / 20°C
  • 2026-08-23: 33°C / 19°C
  • 2026-08-24: 28°C / 14°C
  • 2026-08-25: 34°C / 16°C
  • 2026-08-26: 36°C / 20°C
  • 2026-08-27: 30°C / 17°C
Is it going to rain in Great Falls today?

There is a 4% chance of rain in Great Falls today.

What is the wind speed in Great Falls right now?

Wind in Great Falls is currently 9 km/h (6 mph) from the SSW.

What is the UV index in Great Falls right now?

The UV index in Great Falls is currently 0 (low). Sun protection is recommended when the index is 3 or higher.

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