Porcupine Mountains Wilderness State Park Climate and Average Weather
Climate of Porcupine Mountains Wilderness State Park: average temperatures, rainfall and seasons month by month.
Climate in Porcupine Mountains Wilderness State Park month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 23° | 12° | 3,1 in | ★★☆☆☆ |
| February | 30° | 16° | 1,6 in | ★★☆☆☆ |
| March | 37° | 23° | 3,1 in | ★★☆☆☆ |
| April | 48° | 31° | 3,7 in | ★★★☆☆ |
| May | 60° | 43° | 2,2 in | ★★★★☆ |
| June | 70° | 54° | 3,8 in | ★★★★☆ |
| July | 76° | 61° | 2,2 in | ★★★★☆ |
| August | 73° | 60° | 2,9 in | ★★★★☆ |
| September | 70° | 56° | 2,9 in | ★★★★☆ |
| October | 58° | 45° | 2,5 in | ★★★★☆ |
| November | 41° | 32° | 3,4 in | ★★☆☆☆ |
| December | 31° | 20° | 3,1 in | ★★☆☆☆ |
Climate type: Subarctic. Source: Open-Meteo archive (ERA5).
Recent extremes in Porcupine Mountains Wilderness State Park
Highest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Porcupine Mountains Wilderness State Park compares with nearby places
Annual averages, and the difference against Porcupine Mountains Wilderness State Park.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Tettegouche State Park | 77 mi | 43°F | 34°F cooler | 30 in |
| Isle Royale National Park | 99 mi | 42°F | 35°F cooler | 30 in |
| Lake Superior | 121 mi | 38°F | 38°F cooler | 31 in |
| Voyageurs National Park | 185 mi | 42°F | 35°F cooler | 28 in |
| Minnesota | 206 mi | 48°F | +35°F warmer | 37 in |
Best time to visit Porcupine Mountains Wilderness State Park
Go in June, July, August and September. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, February and December - expect the least comfortable mix of heat, cold or rain.
What this means for Porcupine Mountains Wilderness State Park
Today is slightly cooler than average for October. The forecast high of 54°F is 4.1°F below the 58°F typical for this month.
A 68% chance means rain is expected over most of the area. Plan indoor alternatives.
Wet roads are likely; braking distances roughly double in heavy rain.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 83°F.
What to pack, what to skip
- A warm mid-layer and gloves for early mornings and evenings
- A packable rain shell - 3 of the next 7 days carry a real chance of rain
- If your dates are flexible, avoid January, February and December - historically the least comfortable months here.
Summary
Porcupine Mountains Wilderness State Park is a state park in Michigan. Porcupine Mountains Wilderness State Park is known for old-growth forest on Lake Superior.
Right now it is 39°F (4°C) in Porcupine Mountains Wilderness State Park with overcast. It feels like 31°F. Today runs from 37°F to 54°F. Chance of precipitation is 68%. Sightseeing conditions score 5.8/10 - fair - plan around the weather.
The best time to visit Porcupine Mountains Wilderness State Park is June, July, August and September. The climate is subarctic. January, February and December tend to be the least comfortable months. July is the warmest month with average highs near 76°F, while January is the coldest with lows near 12°F.
Nearby highlights include Tettegouche State Park, Isle Royale National Park, Lake Superior and Voyageurs National Park.
In plain terms. Today is slightly cooler than average for October. The forecast high of 54°F is 4.1°F below the 58°F typical for this month. The best window to be outside is roughly 6 PM to 9 PM, when temperature, rain chance and wind line up best. fishing is the strongest bet in Porcupine Mountains Wilderness State Park today at 8.2/10. Wet roads are likely; braking distances roughly double in heavy rain.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about Porcupine Mountains Wilderness State Park
| Type | State park |
|---|---|
| State | Michigan |
| Country | United States |
| Continent | North America |
| Coordinates | 46°49′5.2″N 89°44′15.4″W (46.8181, -89.7376) |
| Established | 1945 |
| Known for | old-growth forest on Lake Superior |
| Local time | 11:26 PM (UTC-04:00) |
| Best months | June, July, August and September |
| Climate | Subarctic |
Weather map for Porcupine Mountains Wilderness State Park
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Explore Porcupine Mountains Wilderness State Park
Every topic we hold for this place, and the same topic for the places around it.
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Frequently asked questions
Where is Porcupine Mountains Wilderness State Park?
Porcupine Mountains Wilderness State Park is a state park in Michigan. Its coordinates are 46.8181, -89.7376. It lies in North America.
What is the weather like in Porcupine Mountains Wilderness State Park right now?
It is currently 39°F (4°C) with overcast. Humidity is 83% and wind is 9 mph.
When is the best time to visit Porcupine Mountains Wilderness State Park?
June, July, August and September offer the most comfortable conditions in Porcupine Mountains Wilderness State Park, which has a subarctic climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is Porcupine Mountains Wilderness State Park in?
Porcupine Mountains Wilderness State Park observes America/Detroit (UTC-04:00). The local time is 11:26 PM.
What are the top things to do in Porcupine Mountains Wilderness State Park?
Popular options include Tettegouche State Park, Isle Royale National Park, Lake Superior, Voyageurs National Park, Mississippi River and Lake Michigan.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (state-parks) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated October 28, 2026 at 11:26 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
