Your favorites:

What is Lewis and Clark, MT, Weather Like in October?

During the month of October, Lewis and Clark, MT, has an average daytime high temperature of 56°F and an average overnight low temperature dropping to 32°F. Around 1.37 inches of precipitation is received during the month, with about 15.58 inches falling in a typical year. Snow is not common in Lewis and Clark, MT.

October 2025: Actual vs. Average Temperatures

Showing temperatures through today (October 25, 2025)
Actual High Average High Actual Low Average Low

Month Summary
Average High: 48.7 F (-8.3 vs avg)
Average Low: 34.4 F (+1.3 vs avg)

Daytime temperatures were significantly below average.

Actual data from: MID_MTROG

Lewis and Clark, MT Daily Weather Averages for October

Recorded at Rogers Pass 9 Nne (usc00247159), 6.6 miles NE of Lewis and Clark, 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 63 F 50 F 0.06" 14.27" N/A N/A 15.4 F 0.1 F
10/2 36 F 63 F 49 F 0.12" 14.33" N/A N/A 15.8 F 0.1 F
10/3 36 F 62 F 49 F 0.18" 14.39" N/A N/A 16.2 F 0.1 F
10/4 35 F 61 F 48 F 0.24" 14.45" N/A N/A 16.6 F 0.1 F
10/5 35 F 61 F 48 F 0.29" 14.50" N/A N/A 17.1 F 0.1 F
10/6 35 F 60 F 48 F 0.34" 14.55" N/A N/A 17.5 F 0.1 F
10/7 35 F 60 F 47 F 0.40" 14.61" N/A N/A 17.9 F 0.1 F
10/8 34 F 59 F 47 F 0.45" 14.66" N/A N/A 18.3 F 0.1 F
10/9 34 F 59 F 46 F 0.50" 14.71" N/A N/A 18.7 F 0.1 F
10/10 34 F 58 F 46 F 0.55" 14.76" N/A N/A 19.1 F 0.1 F
10/11 33 F 58 F 46 F 0.60" 14.81" N/A N/A 19.5 F 0.1 F
10/12 33 F 57 F 45 F 0.64" 14.85" N/A N/A 19.9 F N/A
10/13 33 F 57 F 45 F 0.69" 14.90" N/A N/A 20.3 F N/A
10/14 33 F 56 F 44 F 0.73" 14.94" N/A N/A 20.7 F N/A
10/15 32 F 56 F 44 F 0.78" 14.99" N/A N/A 21.1 F N/A
10/16 32 F 55 F 44 F 0.82" 15.03" N/A N/A 21.4 F N/A
10/17 32 F 55 F 43 F 0.87" 15.08" N/A N/A 21.8 F N/A
10/18 32 F 54 F 43 F 0.91" 15.12" N/A N/A 22.2 F N/A
10/19 31 F 54 F 43 F 0.95" 15.16" N/A N/A 22.6 F N/A
10/20 31 F 53 F 42 F 0.99" 15.20" N/A N/A 22.9 F N/A
10/21 31 F 53 F 42 F 1.03" 15.24" N/A N/A 23.3 F N/A
10/22 31 F 52 F 41 F 1.07" 15.28" N/A N/A 23.6 F N/A
10/23 30 F 52 F 41 F 1.10" 15.31" N/A N/A 24 F N/A
10/24 30 F 51 F 41 F 1.14" 15.35" N/A N/A 24.3 F N/A
10/25 30 F 51 F 40 F 1.17" 15.38" N/A N/A 24.7 F N/A
10/26 30 F 50 F 40 F 1.21" 15.42" N/A N/A 25 F N/A
10/27 29 F 50 F 40 F 1.25" 15.46" N/A N/A 25.4 F N/A
10/28 29 F 50 F 39 F 1.28" 15.49" N/A N/A 25.7 F N/A
10/29 29 F 49 F 39 F 1.31" 15.52" N/A N/A 26 F N/A
10/30 29 F 49 F 39 F 1.34" 15.55" N/A N/A 26.3 F N/A
10/31 29 F 48 F 38 F 1.37" 15.58" N/A N/A 26.7 F N/A
Buy me a coffee
Campground Weather - Check Reports for 8800+ Locations