Sullivan, MI Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Sullivan, MI in one place.
Sunny, with a high near 81. South southwest wind 1 to 8 mph, with gusts as high as 18 mph.
Local Weather Overview
This forecast page for Sullivan, MI is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jun 1, 2026 9:32 PM EDT.
The active forecast window currently covers Jun 3 to Jun 8, 2026 for Sullivan, MI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 3 to Jun 8, 2026
- Latest sync
- Jun 1, 2026 9:32 PM EDT
- Forecast office
- GRR
- Source
- NOAA / NWS
Daily Outlook
This Week in Sullivan
Monday looks like the warmest upcoming period in Sullivan at 85 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 58 degrees F.
The strongest winds are forecast for Thursday at about 3 to 12 mph SSW.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 1, 2026 9:32 PM EDT
- Coverage
- 6 days
- Time zone
- America/Detroit
- Forecast office
- GRR
- Radar station
- KGRR
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 58. South wind 1 to 7 mph.
Mostly sunny, with a high near 83.
Mostly cloudy, with a low around 64.
A chance of rain showers after 8am. Mostly cloudy, with a high near 82.
A chance of rain showers before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
A chance of showers and thunderstorms. Partly sunny, with a high near 82.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
A chance of showers and thunderstorms. Partly sunny, with a high near 84.
A slight chance of rain showers before 8pm, then a slight chance of showers and thunderstorms. Partly cloudy, with a low around 65.
A slight chance of rain showers. Mostly sunny, with a high near 85.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Jun 3
|
Sunny
|
81°F |
1 to 8 mph
SSW
|
|
Wednesday Night
Jun 3
|
Partly Cloudy
|
58°F |
1 to 7 mph
S
|
|
Thursday
Jun 4
|
Mostly Sunny
|
83°F |
3 to 12 mph
SSW
|
|
Thursday Night
Jun 4
|
Mostly Cloudy
|
64°F |
7 to 10 mph
SSW
|
|
Friday
Jun 5
|
Chance Rain Showers
|
82°F |
8 to 12 mph
SW
|
|
Friday Night
Jun 5
|
Chance Showers And Thunderstorms
|
63°F |
5 to 10 mph
SW
|
|
Saturday
Jun 6
|
Chance Showers And Thunderstorms
|
82°F |
5 to 9 mph
SSW
|
|
Saturday Night
Jun 6
|
Chance Showers And Thunderstorms
|
63°F |
3 to 8 mph
NNW
|
|
Sunday
Jun 7
|
Chance Showers And Thunderstorms
|
84°F |
5 to 8 mph
NW
|
|
Sunday Night
Jun 7
|
Slight Chance Showers And Thunderstorms
|
65°F |
5 to 8 mph
SSE
|
|
Monday
Jun 8
|
Slight Chance Rain Showers
|
85°F |
5 to 10 mph
ESE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Sullivan.