Great Falls weather — 10-day forecast
Temperature, rain, wind and feels-like in Great Falls, hour by hour and over 10 days, with the seasonal normal for context.
Now
Reading from 22:00 · NOAA HRRR model
24 °C
Partly cloudy
Feels like 28 °C
Next 12 h
↓ 22°06:00↑ 29°10:00
- Humidity
- 84 %
- Dew point
- 21 °C
- Gusts
- 8.5 km/h
- Clouds
- 57 %
- Pressure
- 1,019 hPa
Grid point 1.0 km away · 3.0 km grid · elevation 89 m
Air quality
The European air-quality index for the city, and the pollutants that set it.
Index set by Ozone
- Ozone
- 69.2µg/m³
- PM2.5
- 7.1µg/m³
- PM10
- 7.2µg/m³
- Nitrogen dioxide
- 11.1µg/m³
- Sulphur dioxide
- 1.2µg/m³
- Carbon monoxide
- 250.0µg/m³
- Dust (AOD)
- 0.00
Generated using Copernicus Atmosphere Monitoring Service information
Hour by hour
Step-by-step detail: temperature, wind, cloud cover and ultraviolet.
10 days
Each day's extremes and the chance of rain, out to the end of the run.
Rain probability (> 1 mm): 50 ECMWF ensemble members.
Today
Light rain86 %
32°
24°
Sat
Violent showers52 %
32°
22°
Sun
Partly cloudy52 %
33°
22°
Mon
Light drizzle26 %
34°
24°
Tue
Thunderstorm72 %
32°
25°
Wed
Light showers72 %
26°
24°
Thu
Mainly clear
30°
22°
Fri
Light drizzle0 mm
30°
25°
Sat
Light rain22 mm
26°
22°
Sun
Thunderstorm3 mm
27°
22°
Gusts · Sat 85.6 km/h
Sun and UV
Sunrise, sunset, day length and ultraviolet intensity.
- Sunrise
- 06:16
- Daylight
- 13 h 58
- Sunset
- 20:14
Radiation · 11.3 MJ/m²
Today in Great Falls the mean temperature will be 28.0 °C — +3.3 °C against the normal for 7 August, measured from 1940 to 2026. (1,290 obs.)
Nearby cities
The climate around Great Falls