Lake Michigan Weather Forecast
Lake Michigan weather: 67°F, clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Summary
Lake Michigan is a lake in Illinois. Lake Michigan is a lake known as the only Great Lake entirely in the US.
Right now it is 67°F (19°C) in Lake Michigan with clear. It feels like 67°F. Today runs from 65°F to 69°F. Chance of precipitation is 3%. Sightseeing conditions score 9.7/10 - excellent - go now.
The best time to visit Lake Michigan is July, August and September. The climate is subarctic. January, March and December tend to be the least comfortable months. August is the warmest month with average highs near 69°F, while January is the coldest with lows near 21°F.
The closest major airport is O'Hare International Airport (ORD), about 147 mi away. Nearby highlights include Indiana Dunes National Park, Starved Rock State Park and Porcupine Mountains Wilderness State Park.
In plain terms. Today is about average for August. The forecast high of 69°F is in line with the 69°F typical for this month. The best window to be outside is roughly 11 AM to 2 PM, when temperature, rain chance and wind line up best. stargazing is the strongest bet in Lake Michigan today at 9.9/10. No weather-related travel disruption is expected today. Roads and airports should run normally.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Active alerts for Lake Michigan
Derived from the forecast. No official alert feed is wired for this country yet.
Weather in Lake Michigan right now
Source: Open-Meteo. Updated 5:44 PM, Aug 25 local time.
Next 24 hours
Hour-by-hour temperature, precipitation chance and wind.
16-day forecast for Lake Michigan
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Tue, Aug 25 | ☁️ Overcast | 69° / 65° | 3% | 21 mph | 6 |
| Wed, Aug 26 | 🌧️ Heavy rain | 69° / 66° | 38% · 0,7 in | 27 mph | 6 |
| Thu, Aug 27 | ☁️ Overcast | 69° / 64° | 4% | 25 mph | 6 |
| Fri, Aug 28 | ☁️ Overcast | 64° / 61° | 4% | 23 mph | 6 |
| Sat, Aug 29 | 🌦️ Light drizzle | 69° / 63° | 10% · 0,0 in | 21 mph | 4 |
| Sun, Aug 30 | 🌦️ Light drizzle | 71° / 68° | 33% · 0,1 in | 31 mph | 6 |
| Mon, Aug 31 | ☁️ Overcast | 70° / 67° | 43% | 17 mph | 3 |
| Tue, Sep 1 | ⛅ Partly cloudy | 69° / 66° | 27% | 15 mph | 6 |
| Wed, Sep 2 | 🌦️ Light drizzle | 68° / 65° | 16% · 0,1 in | 10 mph | 5 |
| Thu, Sep 3 | 🌦️ Drizzle | 68° / 66° | 27% · 0,1 in | 17 mph | 6 |
| Fri, Sep 4 | 🌧️ Showers | 73° / 65° | 16% · 1,2 in | 15 mph | 6 |
| Sat, Sep 5 | ☁️ Overcast | 71° / 66° | 27% | 17 mph | 4 |
| Sun, Sep 6 | ☁️ Overcast | 66° / 62° | 23% | 22 mph | 5 |
| Mon, Sep 7 | ☀️ Clear sky | 63° / 58° | 23% | 17 mph | 6 |
| Tue, Sep 8 | 🌦️ Light drizzle | 65° / 60° | 27% · 0,0 in | 25 mph | 3 |
| Wed, Sep 9 | ☀️ Clear sky | -- / -- | 27% | -- | — |
Climate in Lake Michigan 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 | 28° | 21° | 2,6 in | ★★☆☆☆ |
| February | 33° | 25° | 1,3 in | ★★☆☆☆ |
| March | 37° | 30° | 3,8 in | ★★☆☆☆ |
| April | 41° | 35° | 3,6 in | ★★★☆☆ |
| May | 47° | 41° | 4,0 in | ★★★☆☆ |
| June | 56° | 51° | 3,7 in | ★★★★☆ |
| July | 67° | 63° | 2,4 in | ★★★★☆ |
| August | 69° | 64° | 1,9 in | ★★★★☆ |
| September | 65° | 61° | 1,3 in | ★★★★☆ |
| October | 57° | 51° | 3,1 in | ★★★★☆ |
| November | 45° | 39° | 2,8 in | ★★★☆☆ |
| December | 36° | 29° | 2,4 in | ★★☆☆☆ |
Climate type: Subarctic. Source: Open-Meteo archive (ERA5).
Weather map for Lake Michigan
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.
Air quality and pollen in Lake Michigan
Air quality: Open-Meteo (CAMS). US AQI scale.
Sun, twilight and moon
Golden and blue hour are the standard photographic approximation around sunrise and sunset.
Best time to visit Lake Michigan
Go in July, August and September. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, March and December - expect the least comfortable mix of heat, cold or rain.
Explore Lake Michigan
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
Frequently asked questions
Where is Lake Michigan?
Lake Michigan is a lake in Illinois. Its coordinates are 44, -87. It lies in North America.
What is the weather like in Lake Michigan right now?
It is currently 67°F (19°C) with clear. Humidity is 68% and wind is 3 mph.
When is the best time to visit Lake Michigan?
July, August and September offer the most comfortable conditions in Lake Michigan, which has a subarctic climate. January, March and December are usually the hardest months for outdoor plans.
What time zone is Lake Michigan in?
Lake Michigan observes America/Detroit (UTC-04:00). The local time is 5:44 PM.
What is the nearest airport to Lake Michigan?
The closest airports are O'Hare International Airport (ORD), 147 mi away.
What are the top things to do in Lake Michigan?
Popular options include Indiana Dunes National Park, Starved Rock State Park and Porcupine Mountains Wilderness State Park.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (lakes) - 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 August 25, 2026 at 5:44 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
