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What is Greenough, MT, Weather Like in October?
During the month of October, Greenough, MT,
has an average daytime high temperature of 56°F and an average overnight low temperature dropping to 24°F.
Around 1.46 inches of precipitation is received during the month,
with about 12.14 inches falling in a typical year.
1.90 inches of snow is the mean amount received during October.
Annually, Greenough receives around 31.10 inches of snow.
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: 53.5 F
(-4.8 vs avg)
Average Low: 30.5 F
(+5.7 vs avg)
Nighttime temperatures were significantly above average.
Actual data from: MID_MTGRN
Greenough, MT Daily Weather Averages for October
Recorded at Potomac
(usc00246685),
6.5 miles
WSW of
Greenough, MT
| Day | Avg Temps (°F) | Precip (in) | Snow (in) | Degree Days (°F) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Low | High | Mean | Month | Year | Month | Year | Heat | Cool | |
| 10/1 | 28 F | 64 F | 46 F | 0.04" | 10.72" | 0.00" | 29.20" | 19.1 F | N/A |
| 10/2 | 28 F | 64 F | 46 F | 0.08" | 10.76" | 0.00" | 29.20" | 19.5 F | N/A |
| 10/3 | 27 F | 63 F | 45 F | 0.12" | 10.80" | 0.00" | 29.20" | 19.9 F | N/A |
| 10/4 | 27 F | 62 F | 45 F | 0.16" | 10.84" | 0.00" | 29.20" | 20.3 F | N/A |
| 10/5 | 27 F | 62 F | 44 F | 0.20" | 10.88" | 0.10" | 29.30" | 20.8 F | N/A |
| 10/6 | 26 F | 61 F | 44 F | 0.25" | 10.93" | 0.10" | 29.30" | 21.2 F | N/A |
| 10/7 | 26 F | 61 F | 43 F | 0.29" | 10.97" | 0.10" | 29.30" | 21.7 F | N/A |
| 10/8 | 26 F | 60 F | 43 F | 0.33" | 11.01" | 0.10" | 29.30" | 22.1 F | N/A |
| 10/9 | 25 F | 60 F | 42 F | 0.37" | 11.05" | 0.10" | 29.30" | 22.6 F | N/A |
| 10/10 | 25 F | 59 F | 42 F | 0.41" | 11.09" | 0.20" | 29.40" | 23 F | N/A |
| 10/11 | 25 F | 58 F | 42 F | 0.46" | 11.14" | 0.20" | 29.40" | 23.5 F | N/A |
| 10/12 | 24 F | 58 F | 41 F | 0.50" | 11.18" | 0.30" | 29.50" | 23.9 F | N/A |
| 10/13 | 24 F | 57 F | 41 F | 0.54" | 11.22" | 0.30" | 29.50" | 24.4 F | N/A |
| 10/14 | 24 F | 57 F | 40 F | 0.59" | 11.27" | 0.40" | 29.60" | 24.8 F | N/A |
| 10/15 | 24 F | 56 F | 40 F | 0.63" | 11.31" | 0.40" | 29.60" | 25.3 F | N/A |
| 10/16 | 23 F | 55 F | 39 F | 0.68" | 11.36" | 0.50" | 29.70" | 25.7 F | N/A |
| 10/17 | 23 F | 55 F | 39 F | 0.73" | 11.41" | 0.50" | 29.70" | 26.1 F | N/A |
| 10/18 | 23 F | 54 F | 38 F | 0.78" | 11.46" | 0.60" | 29.80" | 26.6 F | N/A |
| 10/19 | 22 F | 54 F | 38 F | 0.83" | 11.51" | 0.70" | 29.90" | 27 F | N/A |
| 10/20 | 22 F | 53 F | 38 F | 0.88" | 11.56" | 0.70" | 29.90" | 27.4 F | N/A |
| 10/21 | 22 F | 52 F | 37 F | 0.93" | 11.61" | 0.80" | 30.00" | 27.9 F | N/A |
| 10/22 | 22 F | 52 F | 37 F | 0.98" | 11.66" | 0.90" | 30.10" | 28.3 F | N/A |
| 10/23 | 21 F | 51 F | 36 F | 1.03" | 11.71" | 1.00" | 30.20" | 28.7 F | N/A |
| 10/24 | 21 F | 51 F | 36 F | 1.09" | 11.77" | 1.10" | 30.30" | 29.1 F | N/A |
| 10/25 | 21 F | 50 F | 36 F | 1.14" | 11.82" | 1.20" | 30.40" | 29.5 F | N/A |
| 10/26 | 21 F | 50 F | 35 F | 1.19" | 11.87" | 1.30" | 30.50" | 29.9 F | N/A |
| 10/27 | 20 F | 49 F | 35 F | 1.24" | 11.92" | 1.40" | 30.60" | 30.3 F | N/A |
| 10/28 | 20 F | 49 F | 34 F | 1.29" | 11.97" | 1.50" | 30.70" | 30.7 F | N/A |
| 10/29 | 20 F | 48 F | 34 F | 1.35" | 12.03" | 1.60" | 30.80" | 31.1 F | N/A |
| 10/30 | 20 F | 47 F | 34 F | 1.40" | 12.08" | 1.80" | 31.00" | 31.4 F | N/A |
| 10/31 | 20 F | 47 F | 33 F | 1.46" | 12.14" | 1.90" | 31.10" | 31.8 F | N/A |
