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Mahtomedi, Minnesota Weather

Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →

Mahtomedi weather forecast — hour by hour, 7-day outlook, NOAA radar

Mahtomedi, MN
Sunday, July 5 at 3:34 PM
84
°
Mostly Clear
Feels like
88°
Humidity
51%
Wind
3 mph
Sunrise
12:31 AM
Sunset
4:01 PM
Mahtomedi, MN
Hour by hour · 24h
24-Hour ForecastMahtomedi, MN: 24-hour forecast. Temperatures range from 67 to 87 degrees Fahrenheit.
L 67°H 87°
Mahtomedi, MN
7-day forecast
  1. Today
    Jul 5
    Foggy
    13%
    —
    85°63°—
  2. Monday
    Jul 6
    Overcast
    —
    —
    89°67°+4°
  3. Tuesday
    Jul 7
    T-storm w/ Hail
    56%
    0.15″
    88°69°-1°
  4. Wednesday
    Jul 8
    T-storm w/ Hail
    66%
    0.55″
    80°65°-8°
  5. Thursday
    Jul 9
    Overcast
    43%
    —
    81°61°+1°
  6. Friday
    Jul 10
    Overcast
    —
    —
    79°64°-2°
  7. Saturday
    Jul 11
    Overcast
    10%
    —
    82°60°+3°
Mahtomedi, MN
Next 24 hours · Warm now
HOT 90°62°77°92°12p6p12a6anow 84°high 87°low 67°
Mahtomedi, MN
Anemometer · 24h winds · from true
NESW
From · True
E
090° · veering 13°
Direction
E
090°
Sustained
3
mph
Gust
4
mph
Peak 24h
26
avg 5
Beaufort · 1 · LIGHT AIR
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 5 · pk 26 @ 8:00p
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 147SUSTGUST
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Mahtomedi, MN
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
984.5
-1.0 mb in 3h · falling · 29.07 inHg
Now
984.5
mb
3h
-1.0
mb
12h
+0.9
mb
24h
+1.4
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 982–986
975980985990-21h-18h-15h-12h-9h-6h-3h-24hNOW985.5982.1984.5
−24h−18h−12h−6hnow
Deep low still deepening — rough seas, strong wind, persistent rain.
Mahtomedi, MN
Air quality
48
AQI
Good
→-2 in 6h

AQI 48 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 12.6 µg/m³ (AQI 58) with a 0.89 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.

PM 2.5DRIVERModerate
12.6μg/m³
PM 10Good
14μg/m³
NO₂Good
1μg/m³
OzoneUnhealthy SG
108μg/m³
UV IndexModerate
3.5

What's driving it

Ozone × UV × Sky

Ozone at AQI 51 — peak already passed at 1 PM under clear skies. Levels should ease through evening.

Present
AQI 51
UV peak
3.3 at earlier today
Sky at peak
clear
Projected peak
AQI 51

PM × Wind × Precip

PM2.5 at 12.6 µg/m³ (AQI 58) with a 0.89 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.

PM2.5/PM10
0.89
Wind
calm
Recent rain
0h in last 6h
Pattern
stagnant smoke

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).

7-DAY AQI TREND50100SUNMONTUEWEDTHUFRISATSUN7-DAY PM2.5 TREND · μg/m³360
Mahtomedi, MN
Sky cover · visibility · 24h
Cloud cover
30%
MOSTLY CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
76.4mi
UNLIMITED
75 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
20:34 UTC · Mahtomedi, MN · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
20:34 UTC · Mahtomedi, MN · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Mahtomedi, MN
Satellite · infrared · animated
Mahtomedi, MN
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Mahtomedi, MN
Almanac · Sunday, July 5
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
4:55 AM
Sunrise
12:31 AM
Daylight
15h 30m
Sunset
4:01 PM
Civil dusk
9:39 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Mahtomedi, MN
The moon
Waning Gibbous
69% illuminated
Moonrise
11:34 PM
Moonset
11:22 AM
In sign
♓︎ Pisces
Mahtomedi, MN
Microseason
Jul 1–5

Cicadas claim the afternoon

weather
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Mahtomedi at a glance

  • Today vs. normal: 17°F above the seasonal normal for this latitude
  • Last frost: May 16 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

16-Day Forecast — Mahtomedi

  1. Sun85°63°13%
  2. Mon89°67°6%
  3. Tue88°69°56%
  4. Wed80°65°66%
  5. Thu81°61°43%
  6. Fri79°64°6%
  7. Sat82°60°10%
  8. Sun92°67°11%
  9. Mon79°62°11%
  10. Tue79°61°8%
  11. Wed81°62°14%
  12. Thu89°64°12%
  13. Fri92°69°19%
  14. Sat96°70°17%
  15. Sun95°76°26%
  16. Mon98°73°33%

Forecast data from Open-Meteo (CC BY 4.0).

Right now in the garden

Peak growing season

As of July 5, 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 — Mahtomedi

SPC has placed Mahtomedi in the Marginal Risk category for severe thunderstorms day after tomorrow.

  • TODAYTSTMGeneral Thunderstorms
  • TOMORROWTSTMGeneral Thunderstorms
  • DAY 3MRGLMarginal Risk

Isolated severe storms possible. Limited threat for hail or damaging wind.

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.

January 1–5: Winter settles deep on the plains.January 6–10: Arctic cold grips the heartland.January 11–15: Sunlight returns to the sloped terrain.January 16–20: Ring-necked pheasants call from cover.January 21–25: Deepest cold locks the prairie.January 26–31: Deep winter's pivot point.February 1–5: February's first breath.February 6–10: Subtle shifts in the light.February 11–15: Bald eagles concentrate on open water.February 16–20: Cold rebound before the final thaw.February 21–25: First killdeer return to thawed fields.February 26–28: Winter's veil grows thin.March 1–5: Ice withdraws from the land.March 6–10: Hibernators wake to open air.March 11–15: Spring arrives with fury and grace.March 16–20: Sandhill Cranes Rise from the Platte.March 21–25: Equinox — Night and Day Hold Balance.March 26–31: First Green Breaks Through Brown Earth.April 1–5: Thunder Voices Wake the Prairie.April 6–10: Cliff Swallows Return to Mud Nests.April 11–15: Wild Geese Wing North in Massive Flocks.April 16–20: Rainbows Follow Afternoon Storms.April 21–25: Prairie Sedges Push Through Wet Soil.April 26–30: Last Frost Retreats North.May 1–5: Wildflowers Erupt Across the Prairie.May 6–10: Grain Rains Feed the Growing Fields.May 11–15: Seedlings Rise From Frost-Free Soil.May 16–20: Roses Bloom Along the Shelter Rows.May 21–25: Summer Arrives Early in Wind and Heat.May 26–31: Frogs Begin Their Nightly Chorus.June 1–5: Prairie lightning bugs rise.June 6–10: Earthworms surface after rain.June 11–15: Toward the solstice glow.June 16–20: Lesser ripening, greater heat.June 21–25: Solstice—sun at zenith.June 26–30: Fireflies in the darkening oak.July 1–5: Cicadas claim the afternoon.July 6–10: Warm wind sweeps the tallgrass.July 11–15: Thunder builds every afternoon.July 16–20: Corn tassels and reaches peak.July 21–25: Dog days settle in haze.July 26–31: Katydid chorus erupts at dusk.August 1–5: Great rains sometimes fall.August 6–10: Autumn's edge approaches.August 11–15: Cool wind rises from the north.August 16–20: Late summer wind through tallgrass.August 21–25: Dew settles on the tallgrass.August 26–31: Monarchs gather on prairie.September 1–5: Corn tassels and heavy skies.September 6–10: Purple asters rise on the prairie.September 11–15: Hawks ride thermal currents south.September 16–20: Equinox brings balance to day.September 21–25: Thunder stills across the plains.September 26–30: Snow geese wheel through the flyway.October 1–5: Prairie enters dormancy slowly.October 6–10: Geese gather on autumn waters.October 11–15: First widespread freeze arrives.October 16–20: Oaks turn bronze and russet.October 21–25: Frost deepens through the night.October 26–31: Light rains fall on frozen ground.November 1–5: Tallgrass turns gold.November 6–10: North wind strips the oak.November 11–15: Frost locks the prairie.November 16–20: Open sky grows cold.November 21–25: First snow falls soft.November 26–30: Blizzard drives the herds.December 1–5: Deep winter takes hold.December 6–10: Sky closes cold, winter reigns.December 11–15: Darkness deepens, life retreats.December 16–20: Rivers turn to stone.December 21–25: Solstice — sun begins return.December 26–31: The year turns in silence.🌱February 14 — First skunk-cabbage spathes thaw their way up☀️March 20 — Spring equinox — day and night balance🌸April 5 — Cherry blossoms peak in the parks🐦May 10 — Warbler migration peaks along the coast✨May 25 — First fireflies scout the meadows at dusk🌞June 21 — Summer solstice — longest day🦗July 25 — Peak cicada chorus in the afternoons🌊August 18 — Warmest sea-surface temperatures of the year🍂September 22 — Autumn equinox — the slow turn❄️October 25 — First widespread frost in the suburbs🍁November 10 — Peak leaf color across the Hudson Valley🌙December 21 — Winter solstice — longest night

Microseason · July 1–5

Cicadas claim the afternoon

Millions of periodical and annual cicadas emerge, their droning chorus filling the summer heat; the soundtrack of midsummer settles over prairie and wetland.

Day 186 of 365 · Wedge 37 of 72

The solar year drawn as a wheel of 72 five-day windows. Each wedge is one microseason; the four colored arcs mark winter, spring, summer, and autumn; the small icons sit at notable phenological events. The crimson pointer creeps clockwise as the year turns.

Planting calendar

MonthPlantHarvest
January——
February——
March——
April——
Maylettuce, peas, spinach, radisheslettuce, peas, radishes
Junelettuce, peas, spinach, radishes, tomatoes, peppers, beans, squashlettuce, peas, radishes
Julytomatoes, peppers, beans, squashtomatoes, beans, summer squash
Augusttomatoes, peppers, beans, squash, fall brassicas, garlic (overwinter), carrotstomatoes, beans, summer squash
Septemberfall brassicas, garlic (overwinter), carrotstomatoes, beans, summer squash
October—winter squash, tomatoes (last)
November——
December——

A year in weather

July is Mahtomedi's warmest stretch (~74°F) and January its coldest (~14°F); precipitation crests in June at 4.4 inches and ebbs in January to 1.1 inches.

MonthMean tempPrecipRainy days
January14°1.1″14
February19°1.2″11
March31°2.1″14
April46°3.3″17
May57°3.9″18
June68°4.4″17
July74°3.5″14
August72°3.6″14
September64°3.9″14
October50°2.4″13
November32°2.2″14
December18°1.4″14

Regional context

In Mahtomedi, NOAA NCEI 1991-2020 normals put January near 14°F and July near 74°F — a 59°F seasonal arc — with about 33.1 inches of precipitation over 173 rainy or snowy days.

Summer convection drives Mahtomedi's precipitation: June logs 4.4 inches on 16.8 rainy days, against January's 1.1 inches on 13.5 — warm-season storms carry Mahtomedi's moisture. It is a warm-season-wet pattern Mahtomedi shares with places like Willernie, MN, Pine Springs, MN and White Bear Lake, MN.

Mahtomedi reaches its last hard frost near late-May; that is the cue for kale, peas, spinach, and parsnips. Heat-demanding starts go out a fortnight on in Mahtomedi, after the soil warms and cold snaps clear. By early-October, frost is back in Mahtomedi — protect or harvest anything tender. A creek-bottom lot in Mahtomedi can lag Mahtomedi's last frost 7-10 days behind a south slope.

Similar climates: Willernie, MN, Pine Springs, MN, White Bear Lake, MN, Dellwood, MN, Grant, MN.

Frequently asked

When does it freeze in Mahtomedi?
In Mahtomedi, expect the last spring frost near mid-May; Mahtomedi's first autumn frost comes around mid-October.
What is the rainy season in Mahtomedi?
Mahtomedi sees its heaviest rain in June (around 4.4 inches), part of roughly 33 inches a year.
What is the warmest month in Mahtomedi?
On average July tops the year in Mahtomedi at about 74°F.
What is the coldest month in Mahtomedi?
The coldest stretch in Mahtomedi falls in January, around 14°F on average.
When can I start a vegetable garden in Mahtomedi?
Around mid-May, start frost-hardy crops in Mahtomedi; tomatoes and basil belong a fortnight later.
How many rainy days does Mahtomedi get?
Mahtomedi averages about 173 days with measurable rain or snow each year.
What hardiness zone is Mahtomedi?
With January around 14°F, Mahtomedi's zone reflects that minimum — the USDA ZIP map confirms Mahtomedi's band.
What is the 10-day forecast for Mahtomedi?
Mahtomedi's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
Will it rain this week in Mahtomedi?
See this week's day-by-day rain chances for Mahtomedi in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Mahtomedi?
Current conditions for Mahtomedi and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Mahtomedi forecast updated?
The Mahtomedi forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Mahtomedi?
Today's sunrise and sunset times for Mahtomedi are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
How accurate is the weather forecast for Mahtomedi?
The next few days in Mahtomedi's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

Set in a warm-summer humid continental zone, Mahtomedi, Minnesota swings from 14°F in the heart of winter to 74°F at midsummer — a 60°F arc.

Mahtomedi sees close to 33 inches of precipitation annually, falling across some 173 wet days.

Mahtomedi sits at 45.1°N; that 60°F seasonal swing frames planting windows and frost dates across Mahtomedi.

All cities in Minnesota →

St. Paul, MN weather →

ZIP codes in Mahtomedi

  • 55110
  • 55115

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.