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Mendota Heights, Minnesota Weather

Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →

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

Mendota Heights, MN
Saturday, July 4 at 10:38 AM
76
°
Clear
Feels like
82°
Humidity
74%
Wind
4 mph
Sunrise
12:32 AM
Sunset
4:01 PM
Mendota Heights, MN
Hour by hour · 24h
24-Hour ForecastMendota Heights, MN: 24-hour forecast. Temperatures range from 68 to 87 degrees Fahrenheit with a 21% chance of precipitation at 12 AM.
L 68°H 87°
Mendota Heights, MN
7-day forecast
  1. Today
    Jul 4
    Overcast
    18%
    —
    87°67°—
  2. Sunday
    Jul 5
    Light Drizzle
    21%
    0.02″
    87°68°0°
  3. Monday
    Jul 6
    Overcast
    —
    —
    86°67°-1°
  4. Tuesday
    Jul 7
    Overcast
    10%
    —
    89°69°+3°
  5. Wednesday
    Jul 8
    Thunderstorm
    56%
    0.40″
    76°69°-13°
  6. Thursday
    Jul 9
    Overcast
    56%
    —
    82°62°+6°
  7. Friday
    Jul 10
    Drizzle
    —
    —
    87°64°+5°
Mendota Heights, MN
Next 24 hours · Mild now
HOT 90°64°78°92°6a12p6p12anow 75°high 87°low 68°PRECIP %
Mendota Heights, MN
Anemometer · 24h winds · from true
NESW
From · True
E
084° · veering 159°
Direction
E
084°
Sustained
4
mph
Gust
5
mph
Peak 24h
18
avg 5
Beaufort · 2 · LIGHT BRZ
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 18 @ 1:00a
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 191SUSTGUST
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Mendota Heights, MN
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
984.4
+1.1 mb in 3h · rising · 29.07 inHg
Now
984.4
mb
3h
+1.1
mb
12h
+2.0
mb
24h
+1.8
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 982–985
975980985990-21h-18h-15h-12h-9h-6h-3h-24hNOW984.5981.5984.5
−24h−18h−12h−6hnow
The low is filling — pressure climbing out of storm territory.
Mendota Heights, MN
Air quality
62
AQI
Moderate
→+4 in 6h

AQI 62 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM2.5 at 14.0 µg/m³ (AQI 60) with a 0.86 fine-to-coarse ratio and 4 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
14.0μg/m³
PM 10Good
16μg/m³
NO₂Good
6μg/m³
OzoneModerate
92μg/m³
UV IndexModerate
3.4

What's driving it

Ozone × UV × Sky

Ozone at AQI 43 now. With UV 4.8 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 28 around 1 PM.

Present
AQI 43
UV peak
4.8 at 1 PM
Sky at peak
clear
Projected peak
AQI 28

PM × Wind × Precip

PM2.5 at 14.0 µg/m³ (AQI 60) with a 0.86 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.

PM2.5/PM10
0.86
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 TREND50100SATSUNMONTUEWEDTHUFRISAT7-DAY PM2.5 TREND · μg/m³370
Mendota Heights, MN
Sky cover · visibility · 24h
Cloud cover
19%
CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
38.9mi
UNLIMITED
77 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
15:38 UTC · Mendota Heights, 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
15:38 UTC · Mendota Heights, MN · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Mendota Heights, MN
Satellite · infrared · animated
Mendota Heights, MN
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Mendota Heights, MN
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
4:56 AM
Sunrise
12:32 AM
Daylight
15h 29m
Sunset
4:01 PM
Civil dusk
9:39 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Mendota Heights, MN
The moon
Waning Gibbous
80% illuminated
Moonrise
11:15 PM
Moonset
10:13 AM
In sign
♓︎ Pisces
Mendota Heights, MN
Microseason
Jul 1–5

Cicadas claim the afternoon

bird
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Mendota Heights at a glance

  • Today vs. normal: 9°F above the seasonal normal for this latitude
  • Last frost: May 15 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

16-Day Forecast — Mendota Heights

  1. Sat87°67°18%
  2. Sun87°68°21%
  3. Mon86°67°7%
  4. Tue89°69°10%
  5. Wed76°69°56%
  6. Thu82°62°56%
  7. Fri87°64°8%
  8. Sat78°66°11%
  9. Sun78°59°16%
  10. Mon81°60°8%
  11. Tue83°61°5%
  12. Wed86°67°13%
  13. Thu91°65°11%
  14. Fri93°70°16%
  15. Sat91°71°26%
  16. Sun94°74°29%

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

Right now in the garden

Peak growing season

As of July 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 — Mendota Heights

SPC has placed Mendota Heights in the Marginal Risk category for severe thunderstorms today.

  • TODAYMRGLMarginal Risk
  • TOMORROWTSTMGeneral Thunderstorms
  • DAY 3TSTMGeneral Thunderstorms

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 185 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

Mendota Heights's warmest month is July (~75°F mean) and its coldest is January (~15°F). Rainfall peaks in June (4.4 inches) and bottoms out in January (1.1 inches).

MonthMean tempPrecipRainy days
January15°1.1″13
February20°1.2″11
March31°2.1″14
April47°3.2″16
May58°3.9″17
June68°4.4″17
July75°3.4″14
August73°3.6″14
September64°3.9″14
October50°2.4″13
November33°2.2″14
December19°1.3″13

Regional context

In Mendota Heights, NOAA NCEI 1991-2020 normals put January near 15°F and July near 75°F — a 60°F seasonal arc — with about 32.7 inches of precipitation over 168 rainy or snowy days.

Mendota Heights's rain peaks in summer: June brings 4.4 inches over 16.5 thunderstorm-fed days, while January sees just 1.1 inches across 13.0 days under cooler, drier air. That summer-storm rhythm groups Mendota Heights with places like Mendota, MN, Lilydale, MN and Sunfish Lake, MN.

Once Mendota Heights passes late-May, overnight freezes fade and kale, peas, spinach, and parsnips can be sown. Mendota Heights's heat-lovers — tomatoes, peppers, squash — hold off until Mendota Heights's frost risk clears, 10-14 days on. Frost returns to Mendota Heights near early-October, ending the tender-crop season. A creek-bottom lot in Mendota Heights can lag Mendota Heights's last frost 7-10 days behind a south slope.

Similar climates: Mendota, MN, Lilydale, MN, Sunfish Lake, MN, West St. Paul, MN, Eagan, MN.

Frequently asked

When does it freeze in Mendota Heights?
Frost typically leaves Mendota Heights by mid-May and returns to Mendota Heights near mid-October.
What is the rainy season in Mendota Heights?
June is the wettest month in Mendota Heights, about 4.4 inches on average; the year totals roughly 33 inches.
What is the warmest month in Mendota Heights?
On average July tops the year in Mendota Heights at about 75°F.
What is the coldest month in Mendota Heights?
The coldest stretch in Mendota Heights falls in January, around 15°F on average.
When can I start a vegetable garden in Mendota Heights?
In Mendota Heights, sow peas and hardy greens around mid-May; Mendota Heights's tomatoes and peppers wait two weeks more.
How many rainy days does Mendota Heights get?
Expect roughly 168 wet days a year in Mendota Heights.
What hardiness zone is Mendota Heights?
Because Mendota Heights bottoms near 15°F in January, that winter low sets Mendota Heights's USDA zone — verify by ZIP.
What is the 10-day forecast for Mendota Heights?
Mendota Heights'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 Mendota Heights?
See this week's day-by-day rain chances for Mendota Heights in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Mendota Heights?
Current conditions for Mendota Heights and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Mendota Heights forecast updated?
The Mendota Heights forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Mendota Heights?
Today's sunrise and sunset times for Mendota Heights 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 Mendota Heights?
The next few days in Mendota Heights's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

The warm-summer humid continental climate of Mendota Heights, Minnesota carries typical Januarys near 15°F and Julys around 75°F — 60°F of seasonal travel.

Mendota Heights sees close to 33 inches of precipitation annually, falling across some 168 wet days.

From 44.9°N, Mendota Heights sees a 60°F seasonal swing that governs Mendota Heights's planting and frost windows.

All cities in Minnesota →

Eagan, MN weather →

ZIP codes in Mendota Heights

  • 55120
  • 55118
  • 55150

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.