Hourly Weather Forecast - San Mateo, Alajuela, CR

12 AM
67°F
0%
2mph
ENE
Foggy
Humidity
100%
Feels like
67°F
Dew Point
67°F
1 AM
67°F
0%
2mph
ENE
Foggy
Humidity
100%
Feels like
67°F
Dew Point
67°F
2 AM
66°F
0%
2mph
ENE
Foggy
Humidity
100%
Feels like
66°F
Dew Point
66°F
3 AM
66°F
0%
2mph
ENE
Foggy
Humidity
100%
Feels like
66°F
Dew Point
66°F
4 AM
66°F
0%
3mph
ENE
Foggy
Humidity
100%
Feels like
66°F
Dew Point
66°F
5 AM
65°F
0%
3mph
E
Foggy
Humidity
100%
Feels like
65°F
Dew Point
65°F
5:49 AM
6 AM
66°F
0%
3mph
E
Hazy
Humidity
96%
Feels like
66°F
Dew Point
65°F
7 AM
69°F
0%
2mph
ENE
Hazy
Humidity
91%
Feels like
69°F
Dew Point
66°F
8 AM
72°F
0%
0mph
ENE
Mostly Sunny
Humidity
86%
Feels like
72°F
Dew Point
68°F
9 AM
76°F
0%
1mph
W
Mostly Sunny
Humidity
81%
Feels like
76°F
Dew Point
69°F
10 AM
78°F
10%
3mph
W
Mostly Sunny
Humidity
79%
Feels like
78°F
Dew Point
71°F
11 AM
79°F
20%
4mph
WSW
Partly Cloudy
Humidity
80%
Feels like
79°F
Dew Point
72°F
12 PM
80°F
20%
5mph
WSW
Partly Cloudy
Humidity
79%
Feels like
80°F
Dew Point
73°F
1 PM
79°F
30%
5mph
WSW
30% Chance Rain Showers
Humidity
79%
Feels like
79°F
Dew Point
72°F
2 PM
79°F
40%
5mph
SW
40% Chance Rain Showers
Humidity
80%
Feels like
79°F
Dew Point
72°F
3 PM
78°F
40%
4mph
SW
40% Chance Rain Showers
Humidity
81%
Feels like
78°F
Dew Point
72°F
4 PM
76°F
30%
4mph
SSW
30% Chance Rain Showers
Humidity
86%
Feels like
76°F
Dew Point
71°F
5 PM
74°F
20%
4mph
SSW
Partly Cloudy
Humidity
92%
Feels like
74°F
Dew Point
71°F
5:22 PM
6 PM
71°F
10%
3mph
SSW
Partly Cloudy
Humidity
98%
Feels like
71°F
Dew Point
71°F
7 PM
70°F
10%
2mph
S
Foggy
Humidity
100%
Feels like
70°F
Dew Point
70°F
8 PM
69°F
10%
1mph
SSE
Foggy
Humidity
100%
Feels like
69°F
Dew Point
69°F
9 PM
68°F
0%
2mph
ESE
Foggy
Humidity
100%
Feels like
68°F
Dew Point
68°F
10 PM
68°F
0%
2mph
E
Foggy
Humidity
100%
Feels like
68°F
Dew Point
68°F
11 PM
67°F
0%
2mph
E
Foggy
Humidity
100%
Feels like
67°F
Dew Point
67°F

Rainfall and Snowfall Totals Through Wednesday

Heavy Rain, Snow, and Winds Wallop Northwest

The atmospheric river this week continues to hit the Pacific Northwest with heavy rain, snow, and high winds.

Wednesday's Weather Outlook

Today's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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