Silver Bay, Minnesota Weather
Prairie lightning bugs rise. Day 77 of spring. Read this microseason across nine climate regions →
Silver Bay weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Light Rain36%0.10″67°57°—
- FridayJun 5Heavy Rain31%0.30″77°59°+10°
- SaturdayJun 6Foggy——65°49°-12°
- SundayJun 7Foggy——61°48°-4°
- MondayJun 8Light Drizzle35%—64°47°+3°
- TuesdayJun 9Light Rain35%0.35″56°50°-8°
- WednesdayJun 10Foggy19%—64°52°+8°
Ozone at AQI 45. AQI flat over the last 6 hours (within ±3 points). Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 45. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 45
- UV peak
- 3.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 10
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 5:01 AM
- Moonset
- 1:41 PM
- In sign
- ♑︎ Capricorn
Prairie lightning bugs rise
Silver Bay at a glance
- Today vs. normal: 8°F below the seasonal normal for this latitude
- Last frost: May 30 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 4, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — Silver Bay
SPC has placed Silver Bay in the General Thunderstorms category for severe thunderstorms today.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | — | — |
| May | lettuce, peas, spinach, radishes | lettuce, peas, radishes |
| June | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | tomatoes, peppers, beans, squash, fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | — | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
Silver Bay's warmest month is July (~65°F mean) and its coldest is January (~10°F). Rainfall peaks in June (4.0 inches) and bottoms out in February (1.2 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 10° | 1.3″ | 4 |
| February | 14° | 1.2″ | 3 |
| March | 25° | 1.7″ | 4 |
| April | 37° | 2.7″ | 6 |
| May | 50° | 3.5″ | 7 |
| June | 60° | 4.0″ | 8 |
| July | 65° | 3.3″ | 7 |
| August | 64° | 3.3″ | 6 |
| September | 56° | 3.3″ | 7 |
| October | 43° | 3.5″ | 6 |
| November | 28° | 2.7″ | 5 |
| December | 17° | 2.0″ | 5 |
Regional context
Silver Bay's climate, per the NOAA NCEI 1991-2020 normals from the nearest reporting station, runs cold-winter and warm-summer. January means hover near 10°F while July climbs to 65°F — a 55°F seasonal swing typical of northern-tier latitudes. Annual precipitation totals about 32.5 inches spread across roughly 69 days with measurable rain or snow.
Precipitation runs summer-dominant here: June averages 4.0 inches across 8.3 days with measurable rain, driven mostly by warm-season storms and thunderstorm activity, while February drops to just 1.2 inches across 3.4 rainy days under drier cool-season air. The warm-season-wet rhythm lines Silver Bay up with places like Beaver Bay, MN, Finland, MN and Two Harbors, MN, where the May-September stretch delivers the bulk of the year's precipitation.
The frost-sensitive growing window opens around late-May, when overnight lows reliably clear freezing for cool-season crops like kale, peas, spinach, and parsnips. Heat-loving transplants like tomatoes, peppers, and squash generally hold off for another 10-14 days to clear the last spring frost risk window. The window closes around early-October, when overnight lows resume dipping below freezing and frost-tender plants need protection or harvest. Those dates are 30-year averages; the actual frost-free window in a given year can vary by 10-14 days at either end. Neighborhood-scale variation in elevation and cold-air pooling means the practical last-frost date inside Silver Bay can lag the regional mean by 5-10 days in low spots, and a bench position with good cold-air drainage can run a week ahead.
Similar climates: Beaver Bay, MN, Finland, MN, Two Harbors, MN, Knife River, MN, Lutsen, MN.
Frequently asked
- When does it freeze in Silver Bay?
- Silver Bay's last spring frost typically falls around mid-May, and the first fall frost arrives around mid-October.
- What is the rainy season in Silver Bay?
- June is the wettest month with about 4.0 inches of rain on average; the city receives roughly 33 inches annually.
- What is the warmest month in Silver Bay?
- July is typically warmest, averaging about 65°F.
- What is the coldest month in Silver Bay?
- January is typically coldest, averaging about 10°F.
- When can I start a vegetable garden in Silver Bay?
- Cool-season crops (peas, lettuce) can be sown around the last spring frost (mid-May); warm-season crops (tomatoes, peppers) wait until 1–2 weeks after.
- How many rainy days does Silver Bay get?
- Silver Bay averages about 69 rainy days per year.
- What hardiness zone is Silver Bay?
- Silver Bay's USDA hardiness zone is determined by its lowest average winter temperature; check the USDA's online lookup with the city ZIP for the current zone designation.
Climate
Silver Bay, Minnesota sits in a warm-summer humid continental climate zone. January means hover near 10°F while July averages 65°F — a 55°F seasonal swing.
Across the year, Silver Bay receives about 33 inches of precipitation spread over roughly 69 rainy days.
The rhythm of the year is set by latitude (47.3°N), proximity to large water bodies, and elevation — all of which shape what grows here, when frost is likely, and what the weather story looks like day to day.