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 18:00 · NOAA HRRR model
11 °C
Mainly clear
Feels like 8 °C
Next 12 h
- 1810°
- 18:39Sunset
- 198°
- 207°
- 216°
- 226°
- 235°
- 004°
- 014°
- 024°
- 033°
- 042°
- 051°
- 061°
↑ 10°18:00↓ 1°06:00
- Humidity
- 78 %
- Dew point
- 7 °C
- Gusts
- 24.3 km/h
- Clouds
- 32 %
- Pressure
- 1,019 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 Ozone
- Ozone
- 48.0µg/m³
- PM2.5
- 2.4µg/m³
- PM10
- 2.8µg/m³
- Nitrogen dioxide
- 2.3µg/m³
- Sulphur dioxide
- 0.2µg/m³
- Carbon monoxide
- 122.0µg/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
Mainly clear
13°
5°
Thu
Clear sky
8°
0°
Fri
Partly cloudy
19°
1°
Sat
Overcast
22°
10°
Sun
Mainly clear
16°
5°
Mon
Clear sky
18°
4°
Tue
Partly cloudy
13°
7°
Wed
Clear sky
16°
4°
Thu
Partly cloudy
18°
7°
Fri
Light drizzle4 mm
10°
5°
Gusts · Sat 58.8 km/h
Sun and UV
Sunrise, sunset, day length and ultraviolet intensity.
- Sunrise
- 07:43
- Daylight
- 10 h 56
- Sunset
- 18:39
Radiation · 9.8 MJ/m²
Today in Great Falls the mean temperature will be 9.3 °C — +0.3 °C against the normal for 14 October, measured from 1940 to 2026. (1,290 obs.)