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What is Big Lake, MT, Weather Like in October?
During the month of October, Big Lake, MT,
has an average daytime high temperature of 57°F and an average overnight low temperature dropping to 34°F.
Around 1.42 inches of precipitation is received during the month,
with about 14.67 inches falling in a typical year.
0.70 inches of snow is the mean amount received during October.
Annually, Big Lake receives around 30.40 inches of snow.
October 2025: Actual vs. Average Temperatures
Showing temperatures through today (October 21, 2025)
Actual High
Average High
Actual Low
Average Low
Month Summary
Average High: 57.8 F
(-2.0 vs avg)
Average Low: 38.5 F
(+3.0 vs avg)
Nighttime temperatures were significantly above average.
Actual data from: MID_C4884
Big Lake, MT Daily Weather Averages for October
Recorded at Missoula 2 Ne
(usc00245735),
10 miles
SSW of
Big Lake, MT
| Day | Avg Temps (°F) | Precip (in) | Snow (in) | Degree Days (°F) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Low | High | Mean | Month | Year | Month | Year | Heat | Cool | |
| 10/1 | 39 F | 66 F | 52 F | 0.05" | 13.30" | 0.00" | 29.70" | 12.9 F | 0.1 F |
| 10/2 | 38 F | 65 F | 52 F | 0.09" | 13.34" | 0.00" | 29.70" | 13.4 F | N/A |
| 10/3 | 38 F | 64 F | 51 F | 0.13" | 13.38" | 0.00" | 29.70" | 13.8 F | N/A |
| 10/4 | 38 F | 64 F | 51 F | 0.18" | 13.43" | 0.00" | 29.70" | 14.3 F | N/A |
| 10/5 | 37 F | 63 F | 50 F | 0.22" | 13.47" | 0.00" | 29.70" | 14.8 F | N/A |
| 10/6 | 37 F | 63 F | 50 F | 0.27" | 13.52" | 0.00" | 29.70" | 15.3 F | N/A |
| 10/7 | 37 F | 62 F | 49 F | 0.31" | 13.56" | 0.00" | 29.70" | 15.8 F | N/A |
| 10/8 | 36 F | 61 F | 49 F | 0.35" | 13.60" | 0.00" | 29.70" | 16.3 F | N/A |
| 10/9 | 36 F | 61 F | 48 F | 0.40" | 13.65" | 0.00" | 29.70" | 16.8 F | N/A |
| 10/10 | 36 F | 60 F | 48 F | 0.44" | 13.69" | 0.00" | 29.70" | 17.2 F | N/A |
| 10/11 | 35 F | 59 F | 47 F | 0.49" | 13.74" | 0.10" | 29.80" | 17.7 F | N/A |
| 10/12 | 35 F | 59 F | 47 F | 0.53" | 13.78" | 0.10" | 29.80" | 18.2 F | N/A |
| 10/13 | 34 F | 58 F | 46 F | 0.57" | 13.82" | 0.10" | 29.80" | 18.7 F | N/A |
| 10/14 | 34 F | 58 F | 46 F | 0.62" | 13.87" | 0.10" | 29.80" | 19.2 F | N/A |
| 10/15 | 34 F | 57 F | 45 F | 0.67" | 13.92" | 0.10" | 29.80" | 19.6 F | N/A |
| 10/16 | 34 F | 56 F | 45 F | 0.72" | 13.97" | 0.10" | 29.80" | 20.1 F | N/A |
| 10/17 | 33 F | 56 F | 44 F | 0.77" | 14.02" | 0.10" | 29.80" | 20.6 F | N/A |
| 10/18 | 33 F | 55 F | 44 F | 0.82" | 14.07" | 0.20" | 29.90" | 21 F | N/A |
| 10/19 | 33 F | 55 F | 44 F | 0.86" | 14.11" | 0.20" | 29.90" | 21.5 F | N/A |
| 10/20 | 32 F | 54 F | 43 F | 0.91" | 14.16" | 0.20" | 29.90" | 21.9 F | N/A |
| 10/21 | 32 F | 53 F | 43 F | 0.96" | 14.21" | 0.20" | 29.90" | 22.3 F | N/A |
| 10/22 | 32 F | 53 F | 42 F | 1.00" | 14.25" | 0.30" | 30.00" | 22.8 F | N/A |
| 10/23 | 31 F | 52 F | 42 F | 1.05" | 14.30" | 0.30" | 30.00" | 23.2 F | N/A |
| 10/24 | 31 F | 52 F | 41 F | 1.10" | 14.35" | 0.30" | 30.00" | 23.6 F | N/A |
| 10/25 | 31 F | 51 F | 41 F | 1.14" | 14.39" | 0.40" | 30.10" | 24 F | N/A |
| 10/26 | 31 F | 51 F | 41 F | 1.19" | 14.44" | 0.40" | 30.10" | 24.4 F | N/A |
| 10/27 | 30 F | 50 F | 40 F | 1.24" | 14.49" | 0.50" | 30.20" | 24.8 F | N/A |
| 10/28 | 30 F | 50 F | 40 F | 1.28" | 14.53" | 0.50" | 30.20" | 25.2 F | N/A |
| 10/29 | 30 F | 49 F | 40 F | 1.33" | 14.58" | 0.60" | 30.30" | 25.5 F | N/A |
| 10/30 | 30 F | 49 F | 39 F | 1.38" | 14.63" | 0.60" | 30.30" | 25.9 F | N/A |
| 10/31 | 30 F | 48 F | 39 F | 1.42" | 14.67" | 0.70" | 30.40" | 26.3 F | N/A |
