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 20:00 · NOAA HRRR model
29 °C
Clear sky
Feels like 25 °C
Next 12 h
- 2030°
- 20:51Sunset
- 2126°
- 2223°
- 2321°
- 0020°
- 0119°
- 0218°
- 0317°
- 0417°
- 0516°
- 0615°
- 06:13Sunrise
- 0715°
- 0818°
↑ 30°20:00↓ 15°07:00
- Humidity
- 14 %
- Dew point
- -1 °C
- Gusts
- 21.6 km/h
- Clouds
- 0 %
- Pressure
- 1,009 hPa
Grid point 1.1 km away · 3.0 km grid · elevation 1,018 m
Air quality
The European air-quality index for the city, and the pollutants that set it.
Index set by PM2.5
- PM2.5
- 30.6µg/m³▲
- PM10
- 31.8µg/m³
- Ozone
- 110.0µg/m³▲
- Nitrogen dioxide
- 0.8µg/m³
- Sulphur dioxide
- 1.1µg/m³
- Carbon monoxide
- 220.0µg/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
Clear sky
33°
21°
Sat
Mainly clear
33°
15°
Sun
Clear sky
30°
15°
Mon
Mainly clear
31°
14°
Tue
Clear sky
31°
13°
Wed
Mainly clear
30°
14°
Thu
Mainly clear
29°
14°
Fri
Overcast
25°
17°
Sat
Partly cloudy
29°
14°
Sun
Mainly clear
31°
20°
Sun and UV
Sunrise, sunset, day length and ultraviolet intensity.
- Sunrise
- 06:11
- Daylight
- 14 h 40
- Sunset
- 20:51
Radiation · 19.3 MJ/m²
Today in Great Falls the mean temperature will be 28.8 °C — +7.3 °C against the normal for 7 August, measured from 1940 to 2026. (1,290 obs.)