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National Weather Service
Weather Information for Great Falls, Montana
  MAPMAP
Weather Forecast
Issued at 04:45  (Local time)  25 May  2022 
Date Temperature oC Weather
Minimum Maximum
25 May
( Wed ) 		- 22 Partly Sunny
Partly Sunny
26 May
( Thu ) 		7 28 Mostly Sunny
Mostly Sunny
27 May
( Fri ) 		12 24 Chance Showers and Breezy
Chance Showers and Breezy
28 May
( Sat ) 		8 19 Chance Rain
Chance Rain
29 May
( Sun ) 		5 14 Rain Likely
Rain Likely
30 May
( Mon ) 		4 14 Rain Likely
Rain Likely
31 May
( Tue ) 		4 14 Chance Rain
Chance Rain
>> Click here for temperatures in oF
 
Climatological Information
Month Mean Temperature oC Mean Total Rainfall (mm) Mean Number of Rain Days
Daily
Minimum		 Daily
Maximum
Jan -9.5 1.9 13.0 6.8
Feb -8.7 3.5 11.9 7.0
Mar -5.2 7.7 23.1 9.3
Apr -0.8 13.1 36.1 9.4
May 3.7 18.2 61.5 11.7
Jun 7.8 22.9 64.3 11.7
Jul 10.8 28.6 38.1 7.5
Aug 10.2 27.9 39.9 7.9
Sep 5.6 21.3 36.1 7.8
Oct 0.4 14.3 21.8 6.6
Nov -4.8 6.3 15.0 6.7
Dec -9.5 1.4 14.0 7.5
>> Click here for temperatures in oF

Remarks:
* Climatological information is based on monthly averages for the 30-year period 1981-2010.
* Attention: Please note that the averaging period for climatological information and the definition of "Mean Number of Precipitation/Rain Days" quoted in this web site may be different for different countries. Hence, care should be taken when city climatologies are compared.