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What is Grand Isle, ME, Weather Like in October?
During the month of October, Grand Isle, ME,
has an average daytime high temperature of 52°F and an average overnight low temperature dropping to 37°F.
Around 3.46 inches of precipitation is received during the month,
with about 28.07 inches falling in a typical year.
Snow is not common in Grand Isle, ME.
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: 58.4 F
(+4.7 vs avg)
Average Low: 40.6 F
(+2.6 vs avg)
Daytime temperatures were significantly above average.
Actual data from: KFVE
Grand Isle, ME Daily Weather Averages for October
Recorded at Frenchville Aroostook Ap
(usw00004836),
7.7 miles
W of
Grand Isle, ME
| Day | Avg Temps (°F) | Precip (in) | Snow (in) | Degree Days (°F) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Low | High | Mean | Month | Year | Month | Year | Heat | Cool | |
| 10/1 | 41 F | 58 F | 50 F | 0.10" | 24.71" | N/A | N/A | 15.4 F | 0.1 F |
| 10/2 | 41 F | 58 F | 49 F | 0.21" | 24.82" | N/A | N/A | 15.8 F | 0.1 F |
| 10/3 | 40 F | 57 F | 49 F | 0.32" | 24.93" | N/A | N/A | 16.3 F | 0.1 F |
| 10/4 | 40 F | 57 F | 48 F | 0.44" | 25.05" | N/A | N/A | 16.7 F | N/A |
| 10/5 | 40 F | 56 F | 48 F | 0.55" | 25.16" | N/A | N/A | 17.1 F | N/A |
| 10/6 | 39 F | 56 F | 48 F | 0.66" | 25.27" | N/A | N/A | 17.5 F | N/A |
| 10/7 | 39 F | 55 F | 47 F | 0.78" | 25.39" | N/A | N/A | 17.9 F | N/A |
| 10/8 | 39 F | 55 F | 47 F | 0.90" | 25.51" | N/A | N/A | 18.3 F | N/A |
| 10/9 | 38 F | 54 F | 46 F | 1.02" | 25.63" | N/A | N/A | 18.7 F | N/A |
| 10/10 | 38 F | 54 F | 46 F | 1.13" | 25.74" | N/A | N/A | 19 F | N/A |
| 10/11 | 38 F | 53 F | 46 F | 1.25" | 25.86" | N/A | N/A | 19.4 F | N/A |
| 10/12 | 38 F | 53 F | 45 F | 1.37" | 25.98" | N/A | N/A | 19.8 F | N/A |
| 10/13 | 37 F | 53 F | 45 F | 1.49" | 26.10" | N/A | N/A | 20.2 F | N/A |
| 10/14 | 37 F | 52 F | 45 F | 1.60" | 26.21" | N/A | N/A | 20.6 F | N/A |
| 10/15 | 37 F | 52 F | 44 F | 1.71" | 26.32" | N/A | N/A | 20.9 F | N/A |
| 10/16 | 36 F | 51 F | 44 F | 1.82" | 26.43" | N/A | N/A | 21.3 F | N/A |
| 10/17 | 36 F | 51 F | 43 F | 1.94" | 26.55" | N/A | N/A | 21.7 F | N/A |
| 10/18 | 36 F | 50 F | 43 F | 2.05" | 26.66" | N/A | N/A | 22 F | N/A |
| 10/19 | 35 F | 50 F | 43 F | 2.16" | 26.77" | N/A | N/A | 22.4 F | N/A |
| 10/20 | 35 F | 49 F | 42 F | 2.28" | 26.89" | N/A | N/A | 22.7 F | N/A |
| 10/21 | 35 F | 49 F | 42 F | 2.39" | 27.00" | N/A | N/A | 23.1 F | N/A |
| 10/22 | 35 F | 49 F | 42 F | 2.50" | 27.11" | N/A | N/A | 23.5 F | N/A |
| 10/23 | 34 F | 48 F | 41 F | 2.62" | 27.23" | N/A | N/A | 23.8 F | N/A |
| 10/24 | 34 F | 48 F | 41 F | 2.73" | 27.34" | N/A | N/A | 24.2 F | N/A |
| 10/25 | 34 F | 47 F | 40 F | 2.84" | 27.45" | N/A | N/A | 24.6 F | N/A |
| 10/26 | 33 F | 47 F | 40 F | 2.94" | 27.55" | N/A | N/A | 24.9 F | N/A |
| 10/27 | 33 F | 47 F | 40 F | 3.05" | 27.66" | N/A | N/A | 25.3 F | N/A |
| 10/28 | 33 F | 46 F | 39 F | 3.16" | 27.77" | N/A | N/A | 25.7 F | N/A |
| 10/29 | 32 F | 46 F | 39 F | 3.26" | 27.87" | N/A | N/A | 26 F | N/A |
| 10/30 | 32 F | 45 F | 39 F | 3.36" | 27.97" | N/A | N/A | 26.4 F | N/A |
| 10/31 | 32 F | 45 F | 38 F | 3.46" | 28.07" | N/A | N/A | 26.8 F | N/A |
