St. Paul, Minnesota Weather
Great rains sometimes fall. Day 43 of summer. Read this microseason across nine climate regions →
St. Paul weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayAug 2Overcast——86°63°—
- MondayAug 3Overcast——88°64°+2°
- TuesdayAug 4Overcast44%—86°67°-2°
- WednesdayAug 5Overcast——87°62°+1°
- ThursdayAug 6Overcast——91°64°+4°
- FridayAug 7Thunderstorm16%0.99″95°64°+4°
- SaturdayAug 8Light Showers18%0.74″94°64°-1°
AQI 58 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 11.6 µg/m³ (AQI 56) with a 0.97 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in stagnant air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM2.5 at 11.6 µg/m³ (AQI 56) with a 0.97 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in stagnant air, not road dust.
- PM2.5/PM10
- 0.97
- 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).








































Red sky at night, sailor's delight.
- Moonrise
- 9:57 PM
- Moonset
- 10:19 AM
- In sign
- ♓︎ Pisces
Great rains sometimes fall
St. Paul at a glance
- Today vs. normal: 13°F above the seasonal normal for this latitude
- Last frost: May 16 (climatological average for this latitude)
- Microseason: Aug 1–5
- Planting window: Sow fall peas. Start kale and collard seedlings for fall.
16-Day Forecast — St. Paul
- Sun86°63°0%
- Mon88°64°2%
- Tue86°67°44%
- Wed87°62°6%
- Thu91°64°7%
- Fri95°64°16%
- Sat94°64°18%
- Sun83°67°22%
- Mon82°63°16%
- Tue72°64°22%
- Wed82°68°24%
- Thu80°67°27%
- Fri89°67°20%
- Sat82°62°18%
- Sun73°62°23%
- Mon84°63°20%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near St. Paul
Right now in the garden
Peak growing season
As of August 2, 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 — St. Paul
SPC includes St. Paul in the general thunderstorm area tomorrow — no severe risk, but storms are possible.
- TODAYNONENo severe risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
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.
Sun & seasons in St. Paul
St. Paul sits in Ramsey County, where the year’s longest day runs 15h 37m of daylight and its shortest just 8h 46m — a swing of +6h 50m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
Minneapolis, the state’s largest city, lies about 8 miles to the W. The nearest town St. Paul tracks is Minneapolis, roughly 8 miles to the W.
Air quality in St. Paul’s county has held roughly steady since 2020; its cleanest year on record was 2025 (median AQI 34). See the full air-quality history for St. Paul.
Microseason · August 1–5
Great rains sometimes fall
Monsoon-like moisture pulses bring heavy downpours; flooding becomes a threat as prairie soils approach saturation from repeated storms.
Day 214 of 365 · Wedge 43 of 72
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
St. Paul's warmest month is July (~74°F mean) and its coldest is January (~14°F). Rainfall peaks in June (4.4 inches) and bottoms out in January (1.1 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 14° | 1.1″ | 14 |
| February | 19° | 1.2″ | 11 |
| March | 31° | 2.1″ | 14 |
| April | 46° | 3.3″ | 17 |
| May | 57° | 3.9″ | 18 |
| June | 68° | 4.4″ | 17 |
| July | 74° | 3.5″ | 14 |
| August | 72° | 3.6″ | 14 |
| September | 64° | 3.9″ | 14 |
| October | 50° | 2.4″ | 13 |
| November | 32° | 2.2″ | 14 |
| December | 18° | 1.4″ | 14 |
Regional context
St. Paul's climate, from NOAA NCEI 1991-2020 station normals, pairs 14°F Januarys with 74°F Julys — a 59°F swing. About 33.1 inches of precipitation falls over roughly 173 days a year.
Precipitation in St. Paul runs summer-dominant: June averages 4.4 inches across 16.8 days of warm-season storms, while January drops to 1.1 inches over 13.5 rainy days of drier cool air. That summer-storm rhythm groups St. Paul with places like Lilydale, MN, West St. Paul, MN and Falcon Heights, MN.
The cool-season window in St. Paul starts at late-May, when nights stop freezing — think kale, peas, spinach, and parsnips. Hold St. Paul's tender crops — tomatoes, peppers, basil — until 10-14 days past St. Paul's last frost. It shuts near early-October, when freezes return to St. Paul and tender plants need cover. Within St. Paul, cold-air pooling chills low spots by 5-10°F, shifting St. Paul's local frost dates.
Similar climates: Lilydale, MN, West St. Paul, MN, Falcon Heights, MN, Maplewood, MN, Mendota Heights, MN.
Naturalist notes
Late May brings the first blooms of common lilac throughout St. Paul's neighborhoods.
American robins typically begin their second nesting cycle during early June as daylight reaches its annual peak.
Frequently asked
- When does it freeze in St. Paul?
- Frost typically leaves St. Paul by mid-May and returns to St. Paul near mid-October.
- What is the rainy season in St. Paul?
- Rainfall in St. Paul peaks in June near 4.4 inches, out of about 33 inches annually.
- What is the warmest month in St. Paul?
- The warmest stretch in St. Paul comes in July, around 74°F on average.
- What is the coldest month in St. Paul?
- On average January is the chilliest month in St. Paul, about 14°F.
- When can I start a vegetable garden in St. Paul?
- Time tomatoes in St. Paul for two weeks after mid-May; peas and greens start at St. Paul's frost line.
- How many rainy days does St. Paul get?
- St. Paul records around 173 days of measurable precipitation annually.
- What hardiness zone is St. Paul?
- St. Paul sits in the USDA zone set by January lows near 14°F; the USDA ZIP tool gives the band.
- What is the 10-day forecast for St. Paul?
- St. Paul'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 St. Paul?
- See this week's day-by-day rain chances for St. Paul in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in St. Paul?
- Current conditions for St. Paul and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the St. Paul forecast updated?
- The St. Paul forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in St. Paul?
- Today's sunrise and sunset times for St. Paul 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 St. Paul?
- The next few days in St. Paul's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
St. Paul's warm-summer humid continental climate in Minnesota pairs 14°F Januarys with 74°F Julys, 60°F apart across the seasons.
In a typical year St. Paul records about 33 inches of precipitation on around 173 days.
The 60°F gap between St. Paul's summer and winter, at 44.9°N, shapes St. Paul's frost calendar.
ZIP codes in St. Paul
- 55114
- 55117
- 55116
- 55119
- 55130
- 55101
- 55155
- 55102
- 55103
- 55106
- 55107
- 55104
- 55105
- 55108
- 55131
- 55133
- 55144
- 55145
- 55146
- 55164
- 55170