San Juan Weather Today · 7-Day Forecast
Thunder Rolls Across the Plains
Lightning and thunder expected — stay indoors and away from open ground.
Warmest Saturday at 21° · coldest night Tuesday at 9°
The short of it: San Juan weather on Sunday, 15 November 2026: local time, 16 °C (61 °F) with thunderstorms, feeling like 16 °C (61 °F). Today’s high 16 °C (61 °F), low 12 °C (54 °F). Chance of rain 75% in the next 24 hours, about 6.6 mm (0.26 in). Warnings in force: thunderstorms expected. Source: Wanted Weather forecast service (global weather models), updated 10:45 local time.
SAN JUAN, Sunday. — Thunderstorms are the word from the San Juan station, with a high of 16° and a low of 12°. A raw day by local measure — 6° below the November average of 23°. Winds are light from the W, gusting to 12 km/h, and the glass is falling — a change is coming.
Of the 7 days ahead, Saturday looks the finest at near 21°, while Tuesday night will be the coldest at 9°. Rain or snow is due on 4 of them, some 21 mm in all. Nights run 4° milder than the November norm of 8°.
By the Almanac's reckoning, November in San Juan runs from 8° at night to 23° by day, with some 57 mm of rain. August is the warmest month here at 23°, July the coldest at 7°, and March the wettest with 146 mm. The best months to ride in are July and September.
Daylight holds steady at 12 h 27 min. The station stands 2,901 m above the sea; nights in high country cool fast once the sun is down.
The Hours to Come
Temperature by the hour · rain & snow in the hour beneathThe hour-by-hour ledger
| Hour | Sky | Temp | Feels | Wind | Rain · Snow |
|---|---|---|---|---|---|
| Now | Overcast | 16° | 17° | 2 km/h | 0.1 mm |
| 11 AM | Thunderstorm | 16° | 16° | 5 km/h | 1.2 mm |
| 12 PM | Light showers | 15° | 14° | 9 km/h | 1.4 mm |
| 1 PM | Overcast | 15° | 14° | 8 km/h | – |
| 2 PM | Light showers | 16° | 15° | 8 km/h | 0.9 mm |
| 3 PM | Light showers | 16° | 15° | 8 km/h | 1.4 mm |
| 4 PM | Light showers | 15° | 14° | 8 km/h | 1.1 mm |
| 5 PM | Light showers | 14° | 13° | 8 km/h | 0.5 mm |
| 6 PM | Overcast | 14° | 13° | 7 km/h | – |
| 7 PM | Overcast | 13° | 13° | 6 km/h | – |
| 8 PM | Overcast | 13° | 13° | 4 km/h | – |
| 9 PM | Overcast | 13° | 13° | 4 km/h | – |
| 10 PM | Overcast | 13° | 12° | 4 km/h | – |
| 11 PM | Overcast | 12° | 12° | 3 km/h | – |
| 12 AM | Partly cloudy | 12° | 12° | 2 km/h | – |
| 1 AM | Fog | 11° | 11° | 2 km/h | – |
| 2 AM | Fog | 11° | 10° | 2 km/h | – |
| 3 AM | Overcast | 10° | 10° | 3 km/h | – |
| 4 AM | Fog | 10° | 9° | 2 km/h | – |
| 5 AM | Fog | 10° | 9° | 2 km/h | – |
| 6 AM | Fog | 9° | 9° | 2 km/h | – |
| 7 AM | Fog | 10° | 9° | 1 km/h | – |
| 8 AM | Partly cloudy | 13° | 13° | 1 km/h | – |
| 9 AM | Partly cloudy | 15° | 15° | 2 km/h | – |
Seven-Day Outlook · Classified
Highs in large type · pick a dayToday (Nov 15): thunderstorm, high 16°, low 12°, 16 mm of rain, gusts to 19 km/h. Sun up 5:45 AM, down 6:12 PM. Lightning and thunder expected — stay indoors and away from open ground.
Monday (Nov 16): fog, high 18°, low 9°, 0.1 mm of rain, gusts to 22 km/h. Sun up 5:45 AM, down 6:12 PM. Sight is poor. Travellers urged to go slow and light their lanterns.
Tuesday (Nov 17): fog, high 19°, low 9°, dry, gusts to 24 km/h. Sun up 5:45 AM, down 6:12 PM. Sight is poor. Travellers urged to go slow and light their lanterns.
Wednesday (Nov 18): fog, high 19°, low 10°, 1.3 mm of rain, gusts to 19 km/h. Sun up 5:45 AM, down 6:13 PM. Sight is poor. Travellers urged to go slow and light their lanterns.
Thursday (Nov 19): light showers, high 18°, low 12°, 1.4 mm of rain, gusts to 22 km/h. Sun up 5:45 AM, down 6:13 PM. Short showers cross the fields. The sun returns soon after.
Friday (Nov 20): fog, high 20°, low 10°, 1.8 mm of rain, gusts to 19 km/h. Sun up 5:45 AM, down 6:13 PM. Sight is poor. Travellers urged to go slow and light their lanterns.
Saturday (Nov 21): fog, high 21°, low 12°, 0.3 mm of rain, gusts to 25 km/h. Sun up 5:45 AM, down 6:14 PM. Sight is poor. Travellers urged to go slow and light their lanterns.
The Week in Figures
| Day | Low · High | Rain · Snow | Gusts | Daylight | |
|---|---|---|---|---|---|
| Today | 12°16° | 16 mm | 19 km/h | 12 h 27 min | |
| Monday | 9°18° | 0.1 mm | 22 km/h | 12 h 27 min | |
| Tuesday | 9°19° | dry | 24 km/h | 12 h 27 min | |
| Wednesday | 10°19° | 1.3 mm | 19 km/h | 12 h 28 min | |
| Thursday | 12°18° | 1.4 mm | 22 km/h | 12 h 28 min | |
| Friday | 10°20° | 1.8 mm | 19 km/h | 12 h 28 min | |
| Saturday | 12°21° | 0.3 mm | 25 km/h | 12 h 29 min |
Warmest: Saturday at 21°. Wettest: today, 16 mm of rain. Strongest gusts: Saturday, 25 km/h.