Waltham, MA 02452 Hourly Weather

Middlesex County5:03 AM EDT42.39°N, 71.22°W

Next 48 hours

5 AM 8 AM 11 AM 2 PM 5 PM 8 PM 11 PM Fri Oct 23 2 AM 5 AM 8 AM 11 AM 2 PM 5 PM 8 PM 11 PM Sat Oct 24 2 AM 30° 40° 50° 60° %
TemperatureFeels likeChance of precipitationNight
Thursday, October 2219 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
5 AM Cloudy 45° 40° 3% 0.00 in N 10 G21 70% 36° 96% 0
6 AM Cloudy 43° 37° 2% 0.00 in N 10 G21 76% 36° 94% 0
7 AM Cloudy 44° 38° 2% 0.00 in N 10 G21 73% 36° 89% 0
8 AM Mostly Cloudy 44° 38° 1% 0.00 in N 10 G21 73% 36° 79% 0
9 AM Mostly Cloudy 46° 41° 1% 0.00 in N 12 G23 68% 36° 71% 1
10 AM Partly Sunny 50° 45° 1% 0.00 in N 13 G25 61% 37° 66% 2
11 AM Partly Sunny 53° 53° 0% 0.00 in N 13 G25 54% 37° 67% 3
12 PM Partly Sunny 55° 55° 0% 0.00 in N 13 G25 51% 37° 63% 4
1 PM Mostly Sunny 59° 59° 0% 0.00 in N 13 G24 42% 36° 49% 3
2 PM Mostly Sunny 59° 59° 0% 0.00 in N 12 G23 40% 35° 34% 3
3 PM Mostly Sunny 60° 60° 0% 0.00 in N 12 G22 41% 36° 33% 2
4 PM Sunny 61° 61° 0% 0.00 in N 10 G21 42% 38° 23% 1
5 PM Sunny 59° 59° 0% 0.00 in N 9 G18 47% 39° 17% 0
6 PM Mostly Clear 58° 58° 0% 0.00 in N 10 G20 49% 39° 23% 0
7 PM Mostly Clear 55° 55° 0% 0.00 in N 13 G22 57% 40° 14% 0
8 PM Mostly Clear 53° 53° 0% 0.00 in N 14 G23 64% 41° 23% 0
9 PM Mostly Clear 52° 52° 0% 0.00 in N 13 G22 61% 39° 13% 0
10 PM Mostly Clear 51° 51° 0% 0.00 in N 13 G21 61% 38° 17% 0
11 PM Clear 49° 44° 0% 0.00 in N 12 G18 63% 37° 5% 0
Friday, October 2324 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Clear 48° 43° 0% 0.00 in N 12 G18 63% 36° 3% 0
1 AM Clear 46° 41° 0% 0.00 in N 12 G18 63% 34° 2% 0
2 AM Clear 44° 38° 0% 0.00 in N 12 G17 65% 33° 1% 0
3 AM Clear 43° 38° 0% 0.00 in N 9 G15 65% 32° 2% 0
4 AM Clear 41° 36° 0% 0.00 in N 8 G15 67% 31° 2% 0
5 AM Clear 40° 35° 0% 0.00 in N 8 G15 70% 31° 2% 0
6 AM Sunny 39° 33° 0% 0.00 in N 8 G14 70% 30° 1% 0
7 AM Sunny 38° 33° 0% 0.00 in N 7 G14 73% 30° 1% 0
8 AM Sunny 38° 32° 0% 0.00 in N 8 G14 70% 29° 0% 0
9 AM Sunny 41° 36° 0% 0.00 in N 8 G15 62% 29° 0% 1
10 AM Sunny 46° 41° 0% 0.00 in N 9 G17 49% 28° 0% 2
11 AM Sunny 48° 44° 0% 0.00 in N 9 G17 46% 28° 0% 3
12 PM Sunny 50° 46° 0% 0.00 in N 9 G16 42% 28° 1% 3
1 PM Sunny 52° 52° 0% 0.00 in N 8 G15 39% 28° 2% 3
2 PM Sunny 53° 53° 0% 0.00 in N 7 G14 38% 28° 3% 2
3 PM Sunny 53° 53° 0% 0.00 in N 7 38% 28° 3% 1
4 PM Sunny 54° 54° 0% 0.00 in N 6 36% 28° 1% 1
5 PM Sunny 52° 52° 0% 0.00 in N 3 39% 28° 1% 0
6 PM Clear 50° 50° 0% 0.00 in NE 2 44% 29° 0% 0
7 PM Clear 47° 47° 0% 0.00 in NE 2 53% 31° 0% 0
8 PM Clear 43° 43° 0% 0.00 in NE 1 65% 32° 0% 0
9 PM Clear 41° 41° 0% 0.00 in N 2 73% 33° 0% 0
10 PM Clear 39° 39° 0% 0.00 in N 2 79% 33° 2% 0
11 PM Clear 38° 38° 0% 0.00 in N 2 79% 32° 3% 0
Saturday, October 2424 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Clear 37° 37° 0% 0.00 in N 2 82% 32° 3% 0
1 AM Patchy Frost 35° 32° 0% 0.00 in NW 3 85% 31° 3% 0
2 AM Patchy Frost 34° 31° 0% 0.00 in NW 3 89% 31° 3% 0
3 AM Patchy Frost 33° 30° 0% 0.00 in NW 3 92% 31° 4% 0
4 AM Patchy Frost 33° 30° 0% 0.00 in NW 3 89% 30° 5% 0
5 AM Areas Of Frost 32° 29° 0% 0.00 in NW 3 92% 30° 6% 0
6 AM Areas Of Frost 31° 28° 0% 0.00 in NW 3 96% 30° 6% 0
7 AM Areas Of Frost 31° 28° 0% 0.00 in NW 3 96% 30° 5% 0
8 AM Patchy Frost 33° 30° 0% 0.00 in W 3 89% 30° 5% 0
9 AM Sunny 37° 34° 0% 0.00 in W 3 79% 31° 4% 1
10 AM Sunny 43° 43° 0% 0.00 in W 2 67% 33° 3% 2
11 AM Sunny 49° 49° 0% 0.00 in W 2 56% 34° 2% 3
12 PM Sunny 52° 52° 0% 0.00 in W 2 50% 34° 2% 3
1 PM Sunny 55° 55° 0% 0.00 in NW 3 43% 33° 3% 3
2 PM Sunny 56° 56° 0% 0.00 in NW 3 42% 33° 3% 2
3 PM Sunny 57° 57° 0% 0.00 in NW 2 42% 34° 2% 1
4 PM Sunny 57° 57° 0% 0.00 in NW 2 45% 36° 1% 1
5 PM Sunny 56° 56° 0% 0.00 in NW 1 49% 37° 1% 0
6 PM Clear 54° 54° 0% 0.00 in W 1 52% 37° 1% 0
7 PM Clear 50° 50° 0% 0.00 in W 2 58% 36° 1% 0
8 PM Clear 47° 47° 0% 0.00 in W 2 63% 35° 1% 0
9 PM Clear 44° 44° 0% 0.00 in W 2 70% 35° 1% –
10 PM Clear 41° 41° 0% 0.00 in W 2 76% 34° 2% –
11 PM Clear 39° 39° 0% 0.00 in W 2 82% 34° 2% –
Sunday, October 2524 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Clear 37° 37° 0% 0.00 in W 2 89% 34° 2% –
1 AM Patchy Frost 35° 35° 0% 0.00 in W 2 92% 33° 1% –
2 AM Patchy Frost 34° 34° 0% 0.00 in W 2 96% 33° 1% –
3 AM Patchy Frost 34° 34° 0% 0.00 in W 2 92% 32° 1% –
4 AM Patchy Frost 34° 34° 0% 0.00 in W 2 92% 32° 2% –
5 AM Patchy Frost 34° 34° 0% 0.00 in W 2 89% 31° 2% –
6 AM Patchy Frost 33° 33° 0% 0.00 in W 2 92% 31° 3% –
7 AM Areas Of Frost 32° 29° 0% 0.00 in W 3 92% 30° 3% –
8 AM Patchy Frost 34° 31° 0% 0.00 in W 3 89% 31° 4% –
9 AM Sunny 39° 37° 0% 0.00 in W 3 79% 33° 3% –
10 AM Sunny 46° 46° 0% 0.00 in W 2 65% 35° 3% –
11 AM Sunny 53° 53° 0% 0.00 in W 2 54% 37° 2% –
12 PM Sunny 57° 57° 0% 0.00 in W 2 47% 37° 2% –
1 PM Sunny 61° 61° 0% 0.00 in SW 3 39% 36° 2% –
2 PM Sunny 62° 62° 0% 0.00 in SW 3 38% 36° 2% –
3 PM Sunny 63° 63° 0% 0.00 in SW 3 38% 37° 2% –
4 PM Sunny 62° 62° 0% 0.00 in SW 2 43% 39° 2% –
5 PM Sunny 60° 60° 0% 0.00 in SW 2 47% 40° 1% –
6 PM Clear 56° 56° 0% 0.00 in SW 3 55% 40° 2% –
7 PM Clear 52° 52° 0% 0.00 in SW 3 63% 40° 2% –
8 PM Clear 51° 51° 0% 0.00 in SW 3 63% 39° 3% –
9 PM Clear 48° 47° 0% 0.00 in SW 3 71% 39° 3% –
10 PM Clear 45° 44° 0% 0.00 in SW 3 76% 38° 3% –
11 PM Clear 43° 41° 0% 0.00 in SW 3 82% 38° 3% –
Monday, October 2624 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Clear 42° 40° 0% 0.00 in SW 3 86% 38° 3% –
1 AM Clear 41° 39° 0% 0.00 in SW 3 86% 37° 3% –
2 AM Clear 41° 39° 0% 0.00 in SW 3 86% 37° 4% –
3 AM Clear 40° 38° 0% 0.00 in SW 3 89% 37° 4% –
4 AM Clear 40° 38° 0% 0.00 in SW 3 85% 36° 4% –
5 AM Clear 39° 37° 0% 0.00 in SW 3 89% 36° 4% –
6 AM Sunny 38° 36° 0% 0.00 in W 3 92% 36° 4% –
7 AM Sunny 37° 34° 0% 0.00 in W 3 96% 36° 4% –
8 AM Sunny 39° 37° 0% 0.00 in W 3 92% 37° 5% –
9 AM Sunny 44° 42° 0% 0.00 in W 3 82% 39° 5% –
10 AM Sunny 51° 51° 0% 0.00 in W 3 68% 41° 5% –
11 AM Sunny 57° 57° 0% 0.00 in W 3 59% 43° 5% –
12 PM Sunny 61° 61° 0% 0.00 in W 3 53% 44° 5% –
1 PM Sunny 64° 64° 0% 0.00 in W 5 48% 44° 5% –
2 PM Sunny 65° 65° 0% 0.00 in W 5 46% 44° 9% –
3 PM Sunny 66° 66° 0% 0.00 in W 3 47% 45° 9% –
4 PM Sunny 66° 66° 0% 0.00 in W 3 48% 46° 9% –
5 PM Sunny 65° 65° 0% 0.00 in W 2 52% 47° 9% –
6 PM Mostly Clear 63° 63° 0% 0.00 in W 2 56% 47° 9% –
7 PM Mostly Clear 59° 59° 0% 0.00 in W 3 62% 46° 9% –
8 PM Mostly Clear 56° 56° 0% 0.00 in W 3 66% 45° 17% –
9 PM Mostly Clear 54° 54° 0% 0.00 in W 3 71% 45° 17% –
10 PM Mostly Clear 52° 52° 0% 0.00 in NW 3 74% 44° 17% –
11 PM Mostly Clear 50° 49° 0% 0.00 in NW 3 80% 44° 17% –
Tuesday, October 2724 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Clear 49° 48° 0% 0.00 in NW 3 83% 44° 17% –
1 AM Mostly Clear 48° 46° 0% 0.00 in NW 5 83% 43° 17% –
2 AM Partly Cloudy 48° 46° 0% 0.00 in NW 5 83% 43° 36% –
3 AM Partly Cloudy 47° 45° 0% 0.00 in NW 5 86% 43° 36% –
4 AM Partly Cloudy 47° 45° 0% 0.00 in NW 5 83% 42° 36% –
5 AM Partly Cloudy 46° 44° 1% 0.00 in NW 5 86% 42° 36% –
6 AM Mostly Sunny 45° 43° 0% 0.00 in N 5 89% 42° 36% –
7 AM Mostly Sunny 45° 42° 0% 0.00 in N 6 89% 42° 36% –
8 AM Mostly Sunny 45° 42° 0% 0.00 in N 6 89% 42° 42% –
9 AM Mostly Sunny 47° 44° 0% 0.00 in N 6 83% 42° 42% –
10 AM Mostly Sunny 50° 47° 0% 0.00 in N 7 77% 43° 42% –
11 AM Mostly Sunny 53° 53° 0% 0.00 in N 7 69% 43° 42% –
12 PM Mostly Sunny 55° 55° 0% 0.00 in N 7 64% 43° 42% –
1 PM Mostly Sunny 55° 55° 1% 0.00 in N 7 61% 42° 42% –
2 PM Sunny 56° 56° 1% 0.00 in N 7 59% 42° 25% –
3 PM Sunny 57° 57° 1% 0.00 in N 6 G12 57% 42° 25% –
4 PM Sunny 57° 57° 1% 0.00 in NE 6 55% 41° 25% –
5 PM Sunny 57° 57° 1% 0.00 in NE 5 55% 41° 25% –
6 PM Mostly Clear 55° 55° 1% 0.00 in NE 5 59% 41° 25% –
7 PM Mostly Clear 53° 53° 2% 0.00 in NE 3 61% 40° 25% –
8 PM Partly Cloudy 50° 49° 2% 0.00 in NE 3 68% 40° 29% –
9 PM Partly Cloudy 48° 47° 2% 0.00 in NE 3 74% 40° 29% –
10 PM Partly Cloudy 46° 46° 2% 0.00 in NE 2 76% 39° 29% –
11 PM Partly Cloudy 45° 45° 2% 0.00 in NE 2 79% 39° 29% –
Wednesday, October 2816 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Partly Cloudy 44° 44° 2% 0.00 in NE 2 79% 38° 29% –
1 AM Partly Cloudy 43° 41° 2% 0.00 in N 3 82% 38° 29% –
2 AM Partly Cloudy 42° 40° 2% 0.00 in N 3 82% 37° 30% –
3 AM Partly Cloudy 41° 39° 2% 0.00 in N 3 82% 36° 30% –
4 AM Partly Cloudy 40° 38° 2% 0.00 in N 3 82% 35° 30% –
5 AM Partly Cloudy 40° 38° 2% 0.00 in N 3 82% 35° 30% –
6 AM Mostly Sunny 39° 37° 2% 0.00 in N 3 85% 35° 30% –
7 AM Mostly Sunny 39° 36° 2% 0.00 in N 5 85% 35° 30% –
8 AM Mostly Sunny 40° 37° 2% 0.00 in N 5 85% 36° 32% –
9 AM Mostly Sunny 43° 40° 2% 0.00 in NE 5 79% 37° 32% –
10 AM Mostly Sunny 47° 45° 2% 0.00 in NE 5 68% 37° 32% –
11 AM Mostly Sunny 50° 48° 2% 0.00 in E 5 63% 38° 32% –
12 PM Mostly Sunny 52° 52° 2% 0.00 in E 5 59% 38° 32% –
1 PM Mostly Sunny 53° 53° 2% 0.00 in SE 5 57% 38° 32% –
2 PM Mostly Sunny 54° 54° 2% 0.00 in SE 5 55% 38° 43% –
3 PM Mostly Sunny 55° 55° 2% 0.00 in SE 5 53% 38° 43% –

National Weather Service forecast updated 2 hrs ago. Precipitation amounts are the forecast liquid equivalent for each hour.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.