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What is Ismay, MT, Weather Like in October?
During the month of October, Ismay, MT,
has an average daytime high temperature of 59°F and an average overnight low temperature dropping to 32°F.
Around 1.16 inches of precipitation is received during the month,
with about 14.63 inches falling in a typical year.
2.00 inches of snow is the mean amount received during October.
Annually, Ismay receives around 25.10 inches of snow.
October 2025: Actual vs. Average Temperatures
Showing temperatures through today (October 23, 2025)
Actual High
Average High
Actual Low
Average Low
Month Summary
Average High: 61.5 F
(+0.8 vs avg)
Average Low: 40.7 F
(+7.3 vs avg)
Nighttime temperatures were significantly above average.
Actual data from: MID_MTM39
Ismay, MT Daily Weather Averages for October
Recorded at Plevna
(usc00246601),
14.3 miles
ESE of
Ismay, MT
| Day | Avg Temps (°F) | Precip (in) | Snow (in) | Degree Days (°F) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Low | High | Mean | Month | Year | Month | Year | Heat | Cool | |
| 10/1 | 38 F | 67 F | 53 F | 0.05" | 13.52" | 0.00" | 23.10" | 12.7 F | 0.3 F |
| 10/2 | 38 F | 66 F | 52 F | 0.09" | 13.56" | 0.10" | 23.20" | 13.2 F | 0.3 F |
| 10/3 | 37 F | 66 F | 52 F | 0.14" | 13.61" | 0.10" | 23.20" | 13.7 F | 0.2 F |
| 10/4 | 37 F | 65 F | 51 F | 0.18" | 13.65" | 0.10" | 23.20" | 14.2 F | 0.2 F |
| 10/5 | 36 F | 65 F | 50 F | 0.22" | 13.69" | 0.20" | 23.30" | 14.7 F | 0.2 F |
| 10/6 | 36 F | 64 F | 50 F | 0.26" | 13.73" | 0.20" | 23.30" | 15.3 F | 0.2 F |
| 10/7 | 35 F | 63 F | 49 F | 0.30" | 13.77" | 0.30" | 23.40" | 15.8 F | 0.1 F |
| 10/8 | 35 F | 63 F | 49 F | 0.34" | 13.81" | 0.30" | 23.40" | 16.3 F | 0.1 F |
| 10/9 | 35 F | 62 F | 48 F | 0.39" | 13.86" | 0.40" | 23.50" | 16.8 F | 0.1 F |
| 10/10 | 34 F | 62 F | 48 F | 0.43" | 13.90" | 0.40" | 23.50" | 17.4 F | 0.1 F |
| 10/11 | 34 F | 61 F | 47 F | 0.47" | 13.94" | 0.50" | 23.60" | 17.9 F | 0.1 F |
| 10/12 | 33 F | 60 F | 47 F | 0.52" | 13.99" | 0.50" | 23.60" | 18.4 F | N/A |
| 10/13 | 33 F | 60 F | 46 F | 0.56" | 14.03" | 0.60" | 23.70" | 18.9 F | N/A |
| 10/14 | 32 F | 59 F | 46 F | 0.60" | 14.07" | 0.60" | 23.70" | 19.4 F | N/A |
| 10/15 | 32 F | 59 F | 45 F | 0.64" | 14.11" | 0.70" | 23.80" | 19.9 F | N/A |
| 10/16 | 31 F | 58 F | 45 F | 0.68" | 14.15" | 0.80" | 23.90" | 20.5 F | N/A |
| 10/17 | 31 F | 57 F | 44 F | 0.72" | 14.19" | 0.80" | 23.90" | 21 F | N/A |
| 10/18 | 30 F | 57 F | 44 F | 0.76" | 14.23" | 0.90" | 24.00" | 21.5 F | N/A |
| 10/19 | 30 F | 56 F | 43 F | 0.80" | 14.27" | 1.00" | 24.10" | 22 F | N/A |
| 10/20 | 29 F | 56 F | 43 F | 0.83" | 14.30" | 1.10" | 24.20" | 22.5 F | N/A |
| 10/21 | 29 F | 55 F | 42 F | 0.86" | 14.33" | 1.10" | 24.20" | 23 F | N/A |
| 10/22 | 29 F | 55 F | 42 F | 0.90" | 14.37" | 1.20" | 24.30" | 23.5 F | N/A |
| 10/23 | 28 F | 54 F | 41 F | 0.93" | 14.40" | 1.30" | 24.40" | 24 F | N/A |
| 10/24 | 28 F | 54 F | 41 F | 0.96" | 14.43" | 1.30" | 24.40" | 24.5 F | N/A |
| 10/25 | 27 F | 53 F | 40 F | 0.99" | 14.46" | 1.40" | 24.50" | 24.9 F | N/A |
| 10/26 | 27 F | 52 F | 40 F | 1.02" | 14.49" | 1.50" | 24.60" | 25.4 F | N/A |
| 10/27 | 26 F | 52 F | 39 F | 1.05" | 14.52" | 1.60" | 24.70" | 25.9 F | N/A |
| 10/28 | 26 F | 51 F | 39 F | 1.07" | 14.54" | 1.70" | 24.80" | 26.3 F | N/A |
| 10/29 | 26 F | 51 F | 38 F | 1.10" | 14.57" | 1.80" | 24.90" | 26.8 F | N/A |
| 10/30 | 25 F | 51 F | 38 F | 1.13" | 14.60" | 1.90" | 25.00" | 27.2 F | N/A |
| 10/31 | 25 F | 50 F | 37 F | 1.16" | 14.63" | 2.00" | 25.10" | 27.7 F | N/A |
