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Current weather in Waltham is clear sky.

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Weather data for Waltham is updated regularly with the latest available observations and forecasts.

Now · 1:56 PM

Waltham Weather & Hourly Forecast

United States · Minnesota · 55982

80°F

Sunny

Feels like: 75°F

💧 Humidity 42% 🌡 Pressure 30.00 inHg 💨 Wind 11 mph 👁 Visibility 29.7 mi ☁ Clouds 2% ☀️ UV index 6.2 · High 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Waltham

Today

2:00 PM

Sunny

80° 💧 None 💨 11 mph H 42%30.00 inHg

5:00 PM

Sunny

77° 💧 None 💨 13 mph H 46%29.97 inHg

8:00 PM

Mostly clear night

68° 💧 None 💨 5 mph H 67%30.00 inHg

11:00 PM

Partly cloudy night

62° 💧 None 💨 3 mph H 81%30.03 inHg

Tomorrow

2:00 AM

Clear night

59° 💧 None 💨 4 mph H 83%30.00 inHg

5:00 AM

Clear night

57° 💧 None 💨 3 mph H 88%30.03 inHg

8:00 AM

Sunny

60° 💧 None 💨 4 mph H 87%30.06 inHg

11:00 AM

Sunny

72° 💧 None 💨 4 mph H 58%30.03 inHg

2:00 PM

Sunny

77° 💧 None 💨 5 mph H 41%30.00 inHg

5:00 PM

Sunny

77° 💧 None 💨 3 mph H 40%29.94 inHg

8:00 PM

Clear night

68° 💧 None 💨 3 mph H 63%29.94 inHg

11:00 PM

Clear night

63° 💧 None 💨 5 mph H 69%29.94 inHg

Friday

2:00 AM

Clear night

61° 💧 None 💨 8 mph H 81%29.94 inHg

5:00 AM

Clear night

61° 💧 None 💨 9 mph H 83%29.94 inHg

8:00 AM

Mostly cloudy

62° 💧 None 💨 12 mph H 76%29.94 inHg

11:00 AM

Partly cloudy

73° 💧 None 💨 15 mph H 58%29.88 inHg

Today

2:00 PM

Sunny

80° 💧 None 💨 11 mph H 42%30.00 inHg

3:00 PM

Sunny

80° 💧 None 💨 13 mph H 42%29.97 inHg

4:00 PM

Sunny

79° 💧 None 💨 14 mph H 43%29.97 inHg

5:00 PM

Sunny

77° 💧 None 💨 13 mph H 46%29.97 inHg

6:00 PM

Sunny

75° 💧 None 💨 11 mph H 50%29.97 inHg

7:00 PM

Sunny

72° 💧 None 💨 7 mph H 58%29.97 inHg

8:00 PM

Mostly clear night

68° 💧 None 💨 5 mph H 67%30.00 inHg

9:00 PM

Mostly clear night

65° 💧 None 💨 5 mph H 73%30.00 inHg

10:00 PM

Partly cloudy night

64° 💧 None 💨 4 mph H 78%30.03 inHg

11:00 PM

Partly cloudy night

62° 💧 None 💨 3 mph H 81%30.03 inHg

Tomorrow

12:00 AM

Partly cloudy night

61° 💧 None 💨 3 mph H 81%30.03 inHg

1:00 AM

Partly cloudy night

61° 💧 None 💨 4 mph H 82%30.03 inHg

2:00 AM

Clear night

59° 💧 None 💨 4 mph H 83%30.00 inHg

3:00 AM

Clear night

59° 💧 None 💨 4 mph H 85%30.00 inHg

4:00 AM

Clear night

58° 💧 None 💨 4 mph H 87%30.03 inHg

5:00 AM

Clear night

57° 💧 None 💨 3 mph H 88%30.03 inHg

6:00 AM

Clear night

57° 💧 None 💨 2 mph H 89%30.03 inHg

7:00 AM

Sunny

56° 💧 None 💨 3 mph H 92%30.03 inHg

8:00 AM

Sunny

60° 💧 None 💨 4 mph H 87%30.06 inHg

9:00 AM

Sunny

64° 💧 None 💨 3 mph H 80%30.06 inHg

10:00 AM

Sunny

69° 💧 None 💨 3 mph H 69%30.03 inHg

11:00 AM

Sunny

72° 💧 None 💨 4 mph H 58%30.03 inHg

12:00 PM

Sunny

75° 💧 None 💨 5 mph H 48%30.03 inHg

1:00 PM

Sunny

76° 💧 None 💨 5 mph H 43%30.00 inHg

2:00 PM

Sunny

77° 💧 None 💨 5 mph H 41%30.00 inHg

3:00 PM

Sunny

78° 💧 None 💨 4 mph H 40%29.97 inHg

4:00 PM

Sunny

78° 💧 None 💨 4 mph H 40%29.97 inHg

5:00 PM

Sunny

77° 💧 None 💨 3 mph H 40%29.94 inHg

6:00 PM

Sunny

76° 💧 None 💨 3 mph H 46%29.94 inHg

7:00 PM

Sunny

72° 💧 None 💨 2 mph H 61%29.94 inHg

8:00 PM

Clear night

68° 💧 None 💨 3 mph H 63%29.94 inHg

9:00 PM

Clear night

66° 💧 None 💨 3 mph H 68%29.94 inHg

10:00 PM

Clear night

64° 💧 None 💨 4 mph H 70%29.94 inHg

11:00 PM

Clear night

63° 💧 None 💨 5 mph H 69%29.94 inHg

Friday

12:00 AM

Clear night

63° 💧 None 💨 7 mph H 71%29.94 inHg

1:00 AM

Clear night

62° 💧 None 💨 8 mph H 78%29.94 inHg

2:00 AM

Clear night

61° 💧 None 💨 8 mph H 81%29.94 inHg

3:00 AM

Clear night

61° 💧 None 💨 8 mph H 83%29.94 inHg

4:00 AM

Clear night

61° 💧 None 💨 9 mph H 82%29.94 inHg

5:00 AM

Clear night

61° 💧 None 💨 9 mph H 83%29.94 inHg

6:00 AM

Mostly clear night

61° 💧 None 💨 10 mph H 82%29.91 inHg

7:00 AM

Mostly sunny

60° 💧 None 💨 11 mph H 81%29.94 inHg

8:00 AM

Mostly cloudy

62° 💧 None 💨 12 mph H 76%29.94 inHg

9:00 AM

Sunny

66° 💧 None 💨 11 mph H 72%29.91 inHg

10:00 AM

Mostly sunny

69° 💧 None 💨 12 mph H 65%29.91 inHg

11:00 AM

Partly cloudy

73° 💧 None 💨 15 mph H 58%29.88 inHg

12:00 PM

Partly cloudy

76° 💧 None 💨 16 mph H 52%29.85 inHg

1:00 PM

Mostly cloudy

78° 💧 None 💨 15 mph H 49%29.83 inHg

2:00 PM

Overcast

79° 💧 None 💨 16 mph H 48%29.83 inHg

3:00 PM

Mostly cloudy

79° 💧 None 💨 16 mph H 48%29.80 inHg

4:00 PM

Overcast

79° 💧 None 💨 16 mph H 50%29.77 inHg

5:00 PM

Overcast

78° 💧 None 💨 16 mph H 57%29.74 inHg

6:00 PM

Mostly cloudy

76° 💧 None 💨 15 mph H 63%29.74 inHg

7:00 PM

Mostly cloudy

74° 💧 None 💨 15 mph H 69%29.74 inHg

8:00 PM

Mostly cloudy night

72° 💧 None 💨 16 mph H 74%29.71 inHg

9:00 PM

Partly cloudy night

72° 💧 None 💨 17 mph H 78%29.71 inHg

10:00 PM

Mostly cloudy night

71° 💧 None 💨 16 mph H 80%29.74 inHg

11:00 PM

Partly cloudy night

71° 💧 None 💨 18 mph H 80%29.74 inHg

Saturday

12:00 AM

Mostly clear night

71° 💧 0.000 in 💨 18 mph H 79%29.71 inHg

1:00 AM

Mostly clear night

70° 💧 None 💨 18 mph H 79%29.68 inHg

2:00 AM

Mostly clear night

70° 💧 None 💨 16 mph H 78%29.68 inHg

3:00 AM

Mostly clear night

70° 💧 0.000 in 💨 14 mph H 81%29.71 inHg

4:00 AM

Overcast night

70° 💧 0.000 in 💨 13 mph H 84%29.71 inHg

5:00 AM

Mostly cloudy night

71° 💧 0.001 in 💨 14 mph H 85%29.71 inHg

6:00 AM

Overcast night

70° 💧 0.001 in 💨 14 mph H 89%29.74 inHg

7:00 AM

Overcast

68° 💧 None 💨 12 mph H 89%29.77 inHg

10:00 AM

Mostly sunny

66° 💧 None 💨 13 mph H 77%29.88 inHg

1:00 PM

Mostly cloudy

73° 💧 None 💨 11 mph H 40%29.94 inHg

4:00 PM

Sunny

73° 💧 None 💨 10 mph H 44%29.94 inHg

7:00 PM

Sunny

68° 💧 None 💨 4 mph H 59%29.97 inHg

10:00 PM

Partly cloudy night

61° 💧 None 💨 4 mph H 77%30.03 inHg

Sunday

1:00 AM

Mostly cloudy night

58° 💧 None 💨 3 mph H 84%30.06 inHg

4:00 AM

Mostly cloudy night

56° 💧 None 💨 4 mph H 84%30.06 inHg

7:00 AM

Mostly sunny

55° 💧 None 💨 6 mph H 87%30.06 inHg

10:00 AM

Partly cloudy

66° 💧 None 💨 8 mph H 63%30.09 inHg

1:00 PM

Overcast

72° 💧 None 💨 11 mph H 47%30.00 inHg

4:00 PM

Moderate rain

71° 💧 None 💨 12 mph H 52%29.94 inHg

7:00 PM

Very heavy rain

64° 💧 None 💨 11 mph H 87%29.88 inHg

10:00 PM

Light rain

64° 💧 None 💨 9 mph H 94%29.85 inHg

Monday

1:00 AM

Overcast night

71° 💧 None 💨 12 mph H 91%29.80 inHg

4:00 AM

Mostly cloudy night

71° 💧 None 💨 6 mph H 94%29.77 inHg

7:00 AM

Mostly cloudy

71° 💧 None 💨 13 mph H 93%29.77 inHg

10:00 AM

Light rain

74° 💧 None 💨 6 mph H 90%29.80 inHg

1:00 PM

Overcast

77° 💧 None 💨 10 mph H 86%29.77 inHg

4:00 PM

Light thunderstorms

77° 💧 None 💨 11 mph H 89%29.74 inHg

7:00 PM

Heavy rain

71° 💧 None 💨 12 mph H 95%29.80 inHg

10:00 PM

Overcast night

63° 💧 None 💨 14 mph H 92%29.88 inHg

Tuesday

1:00 AM

Overcast night

61° 💧 None 💨 13 mph H 85%29.97 inHg

7:00 AM

Sunny

58° 💧 None 💨 12 mph H 83%30.00 inHg

1:00 PM

Sunny

54° 💧 None 💨 10 mph H 92%30.15 inHg

7:00 PM

Overcast

64° 💧 None 💨 8 mph H 69%30.24 inHg

Wednesday

1:00 AM

Mostly clear night

62° 💧 None 💨 4 mph H 75%30.24 inHg

7:00 AM

Sunny

55° 💧 None 💨 5 mph H 90%30.30 inHg

1:00 PM

Overcast

56° 💧 None 💨 6 mph H 85%30.30 inHg

7:00 PM

Partly cloudy

68° 💧 None 💨 12 mph H 66%30.27 inHg

Thursday

1:00 AM

Clear night

66° 💧 None 💨 9 mph H 66%30.15 inHg

7:00 AM

Light rain

62° 💧 None 💨 12 mph H 80%30.15 inHg

1:00 PM

Mostly cloudy

63° 💧 None 💨 12 mph H 84%30.09 inHg

7:00 PM

Light rain

70° 💧 None 💨 13 mph H 87%30.06 inHg

Friday

1:00 AM

Light rain

75° 💧 None 💨 3 mph H 87%29.97 inHg

7:00 AM

Sunny

66° 💧 None 💨 7 mph H 97%30.03 inHg

1:00 PM

Overcast

64° 💧 None 💨 5 mph H 99%30.09 inHg

7:00 PM

Overcast

71° 💧 None 💨 8 mph H 80%30.09 inHg

Saturday

1:00 AM

Mostly cloudy night

70° 💧 None 💨 7 mph H 78%30.03 inHg

7:00 AM

Light rain

64° 💧 None 💨 12 mph H 93%29.97 inHg

1:00 PM

Light thunderstorms

68° 💧 None 💨 13 mph H 97%29.80 inHg

7:00 PM

Mostly sunny

83° 💧 None 💨 14 mph H 73%29.65 inHg

Sunday

1:00 AM

Mostly clear night

79° 💧 None 💨 16 mph H 70%29.56 inHg

7:00 AM

Sunny

65° 💧 None 💨 8 mph H 73%29.71 inHg

1:00 PM

Mostly cloudy

60° 💧 None 💨 13 mph H 66%29.80 inHg

7:00 PM

Sunny

67° 💧 None 💨 13 mph H 63%29.85 inHg

Monday

1:00 AM

Clear night

64° 💧 None 💨 7 mph H 70%29.88 inHg

7:00 AM

Overcast

56° 💧 None 💨 4 mph H 81%29.97 inHg

1:00 PM

Mostly cloudy

53° 💧 None 💨 4 mph H 85%29.97 inHg

7:00 PM

Overcast

69° 💧 None 💨 3 mph H 52%30.00 inHg

Tuesday

1:00 AM

Overcast night

65° 💧 None 💨 3 mph H 71%30.00 inHg

7:00 AM

Mostly sunny

59° 💧 None 💨 3 mph H 90%30.09 inHg

1:00 PM

Sunny

54° 💧 None 💨 5 mph H 92%30.12 inHg

7:00 PM

Sunny

70° 💧 None 💨 6 mph H 61%30.15 inHg

Wednesday

1:00 AM

Mostly clear night

65° 💧 None 💨 4 mph H 77%30.12 inHg

7:00 AM

Sunny

57° 💧 None 💨 3 mph H 86%30.15 inHg

1:00 PM

Mostly sunny

55° 💧 None 💨 3 mph H 95%30.15 inHg

7:00 PM

Mostly cloudy

73° 💧 None 💨 5 mph H 58%30.12 inHg

Thursday

1:00 AM

Mostly cloudy night

67° 💧 None 💨 4 mph H 75%30.00 inHg

In Waltham and, more broadly, across the state of Minnesota: The rest of the day will be mostly sunny with a few clouds drifting across the sky. Temperatures will remain mild, ranging from about 66 to 74 degrees Fahrenheit. Expect light to moderate northwest winds, with sustained speeds around 16 mph and gusts reaching up to 23 mph. No precipitation is anticipated, so conditions will stay dry and comfortable. The breeze may bring a slight cooling effect, especially in the late afternoon. Overall, it should be a pleasant day with clear skies and moderate winds, making it suitable for outdoor activities. Keep in mind that the wind could occasionally cause some minor disturbances, but weather conditions will remain stable for the rest of the day.

15-Day Weather Outlook for Waltham

TomorrowTomorrow

Mostly sunny 78°/56° 💧 None 💨 7 mph

Friday, Sep 11Fri Sep 11

Mostly sunny 79°/60° 💧 None 💨 16 mph

Saturday, Sep 12Sat Sep 12

Mostly cloudy 74°/66° 💧 0.004 in 💨 18 mph

Sunday, Sep 13Sun Sep 13

Moderate rain 72°/55° 💧 0.008 in 💨 12 mph

Monday, Sep 14Mon Sep 14

Light thunderstorms 77°/64° 💧 1.551 in 💨 13 mph

Tuesday, Sep 15Tue Sep 15

Heavy rain 71°/54° 💧 0.396 in 💨 14 mph

Wednesday, Sep 16Wed Sep 16

Overcast 64°/55° 💧 0.011 in 💨 8 mph

Thursday, Sep 17Thu Sep 17

Light rain 68°/62° 💧 0.022 in 💨 12 mph

Friday, Sep 18Fri Sep 18

Light rain 75°/64° 💧 0.492 in 💨 13 mph

Saturday, Sep 19Sat Sep 19

Light thunderstorms 71°/64° 💧 0.379 in 💨 13 mph

Sunday, Sep 20Sun Sep 20

Mostly sunny 83°/60° 💧 0.298 in 💨 16 mph

Monday, Sep 21Mon Sep 21

Overcast 67°/53° 💧 None 💨 13 mph

Tuesday, Sep 22Tue Sep 22

Overcast 69°/54° 💧 None 💨 5 mph

Wednesday, Sep 23Wed Sep 23

Mostly sunny 70°/55° 💧 None 💨 6 mph

Thursday, Sep 24Thu Sep 24

Mostly cloudy 73°/67° 💧 None 💨 5 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Waltham

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Waltham

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 2:00 PM

PM2.5 Fine particles Good 3,0µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 3,6µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Fair 75,9µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 0,6µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in Waltham

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 6,2High 🙂Fair

Tomorrow UV 5,9Moderate 🙂Fair

Friday UV 6,2High 🙂Fair

Saturday UV 6,0High 🙂Fair

Sunday UV 5,0Moderate 🙂Fair

Monday UV 6,0High —Unavailable

Tuesday UV 5,0Moderate —Unavailable

Hourly UV index today

2:00 PMUV 5,8 3:00 PMUV 3,0 4:00 PMUV 2,6 5:00 PMUV 1,7 6:00 PMUV 0,6 7:00 PMUV 0,0

Today's weather health advice Open today's recommendations.

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

Stay hydrated

Drink water regularly, especially during physical activity or prolonged sun exposure.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Waltham

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · WALTHAM, MINNESOTA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 3:00 AM–4:00 AM.

100/100Best-hour score

BEST TIME TONIGHT 3:00 AM–4:00 AM Astronomical darkness: 9:12 PM–5:05 AM

☁ Cloud cover 0% Real hourly forecast for the best viewing hour.

☾ Moonlight 3% New Moon · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 66° high at the best hour.

✦ Estimated visible meteors 2–5/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min79%

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

ACTIVE NOW

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

UPCOMING

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

DISCOVER WEATHER NEARBY Weather in other cities

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Forecast data for Waltham were last refreshed today at 1:56 PM. The current forecast period extends through 11/09/2026 at 11:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.