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What is Rocky Mountain Laboratory Historical Marker, MT, Weather Like in October?

During the month of October, Rocky Mountain Laboratory Historical Marker, MT, has an average daytime high temperature of 57°F and an average overnight low temperature dropping to 31°F. Around 0.94 inches of precipitation is received during the month, with about 10.82 inches falling in a typical year. Snow is not common in Rocky Mountain Laboratory Historical Marker, MT.

October 2025: Actual vs. Average Temperatures

Showing temperatures through today (October 22, 2025)
Actual High Average High Actual Low Average Low

Month Summary
Average High: 58 F (-1.5 vs avg)
Average Low: 37.6 F (+5.1 vs avg)

Nighttime temperatures were significantly above average.

Actual data from: MID_KHRF

Rocky Mountain Laboratory Historical Marker, MT Daily Weather Averages for October

Recorded at Hamilton (usc00243885), 0.8 miles SW of Rocky Mountain Laboratory Historical Marker, MT
Day Avg Temps (°F) Precip (in) Snow (in) Degree Days (°F)
Low High Mean Month Year Month Year Heat Cool
10/1 36 F 65 F 50 F 0.03" 9.91" N/A N/A 14.6 F N/A
10/2 36 F 65 F 50 F 0.05" 9.93" N/A N/A 15 F N/A
10/3 35 F 64 F 50 F 0.08" 9.96" N/A N/A 15.5 F N/A
10/4 35 F 63 F 49 F 0.10" 9.98" N/A N/A 15.9 F N/A
10/5 35 F 63 F 49 F 0.13" 10.01" N/A N/A 16.4 F N/A
10/6 34 F 62 F 48 F 0.15" 10.03" N/A N/A 16.8 F N/A
10/7 34 F 62 F 48 F 0.18" 10.06" N/A N/A 17.3 F N/A
10/8 33 F 61 F 47 F 0.21" 10.09" N/A N/A 17.7 F N/A
10/9 33 F 61 F 47 F 0.23" 10.11" N/A N/A 18.2 F N/A
10/10 33 F 60 F 46 F 0.26" 10.14" N/A N/A 18.6 F N/A
10/11 32 F 59 F 46 F 0.28" 10.16" N/A N/A 19.1 F N/A
10/12 32 F 59 F 46 F 0.31" 10.19" N/A N/A 19.5 F N/A
10/13 32 F 58 F 45 F 0.33" 10.21" N/A N/A 20 F N/A
10/14 31 F 58 F 45 F 0.36" 10.24" N/A N/A 20.4 F N/A
10/15 31 F 57 F 44 F 0.39" 10.27" N/A N/A 20.9 F N/A
10/16 31 F 57 F 44 F 0.42" 10.30" N/A N/A 21.3 F N/A
10/17 30 F 56 F 43 F 0.45" 10.33" N/A N/A 21.8 F N/A
10/18 30 F 56 F 43 F 0.49" 10.37" N/A N/A 22.2 F N/A
10/19 30 F 55 F 42 F 0.52" 10.40" N/A N/A 22.6 F N/A
10/20 30 F 55 F 42 F 0.55" 10.43" N/A N/A 23 F N/A
10/21 29 F 54 F 42 F 0.59" 10.47" N/A N/A 23.4 F N/A
10/22 29 F 53 F 41 F 0.62" 10.50" N/A N/A 23.8 F N/A
10/23 29 F 53 F 41 F 0.65" 10.53" N/A N/A 24.2 F N/A
10/24 28 F 52 F 40 F 0.68" 10.56" N/A N/A 24.6 F N/A
10/25 28 F 52 F 40 F 0.72" 10.60" N/A N/A 25 F N/A
10/26 28 F 52 F 40 F 0.76" 10.64" N/A N/A 25.4 F N/A
10/27 28 F 51 F 39 F 0.79" 10.67" N/A N/A 25.7 F N/A
10/28 27 F 51 F 39 F 0.83" 10.71" N/A N/A 26.1 F N/A
10/29 27 F 50 F 39 F 0.87" 10.75" N/A N/A 26.5 F N/A
10/30 27 F 50 F 38 F 0.90" 10.78" N/A N/A 26.8 F N/A
10/31 27 F 49 F 38 F 0.94" 10.82" N/A N/A 27.2 F N/A
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