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National Weather Service
Weather Information for Helena, Montana
  MAPMAP
Weather Forecast
Issued at 02:48  (Local time)  03 Oct  2023 
Date Temperature oC Weather
Minimum Maximum
03 Oct
( Tue ) 		- 14 Showers Likely
Showers Likely
04 Oct
( Wed ) 		5 18 Partly Sunny then Partly Sunny and Breezy
Partly Sunny then Partly Sunny and Breezy
05 Oct
( Thu ) 		3 15 Mostly Sunny
Mostly Sunny
06 Oct
( Fri ) 		-1 18 Sunny
Sunny
07 Oct
( Sat ) 		2 22 Sunny
Sunny
08 Oct
( Sun ) 		4 23 Sunny
Sunny
09 Oct
( Mon ) 		6 23 Sunny
Sunny
>> 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 -10.6 0.7 9.1 6.2
Feb -8.4 3.7 7.6 5.9
Mar -4.3 9.0 15.0 7.7
Apr 0.1 14.3 24.9 8.7
May 4.9 19.5 47.5 11.1
Jun 9.2 24.3 52.3 11.2
Jul 12.4 29.8 30.2 7.7
Aug 11.2 29.2 30.5 7.3
Sep 6.2 22.6 27.9 6.1
Oct 0.3 14.8 17.3 6.2
Nov -5.6 6.2 12.4 6.9
Dec -11.2 -0.2 10.2 6.6
>> 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.