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Simi Valley, California · now

56°

Cloudy

High / Low
/ 52°
Wind
6 mph NW
Humidity
83%

Tomorrow· Wednesday73°/51°· Partly Sunny

warmer than yesterday at this time

No precipitation expected in the next 1.6 hours.

Current weather and 7-day forecast for Simi Valley, California, sourced directly from the National Weather Service. Expect cloudy today.

Temperature · next 24 hours

45° 65° 80° 73° 52° 5 AM 8 AM 11 AM 2 PM 5 PM 8 PM 11 PM 2 AM

Next 24 hours

  1. 5 AM

    56°

    0%

  2. 7 AM

    57°

    0%

  3. 9 AM

    61°

    0%

  4. 11 AM

    70°

    0%

  5. 1 PM

    72°

    0%

  6. 3 PM

    72°

    0%

  7. 5 PM

    68°

    0%

  8. 7 PM

    61°

    0%

  9. 9 PM

    54°

    0%

  10. 11 PM

    54°

    0%

  11. 1 AM

    54°

    0%

  12. 3 AM

    52°

    0%

Live radar

View full radar →

7 days

  1. Today 5/13 Cloudy 0% · 52°
  2. Wed 5/13 Partly Sunny 1% 73° · 51°
  3. Thu 5/14 Sunny 1% 75° · 53°
  4. Fri 5/15 Sunny 0% 77° · 52°
  5. Sat 5/16 Sunny 0% 78° · 53°
  6. Sun 5/17 Sunny 0% 77° · 52°
  7. Mon 5/18 Sunny 0% 81° · 54°
Extended outlook days 8–17
  1. Tue 5/19 Cloudy 0% 80° · 55°
  2. Wed 5/20 Cloudy 0% 82° · 55°
  3. Thu 5/21 Cloudy 1% 78° · 55°
  4. Fri 5/22 Cloudy 0% 76° · 54°
  5. Sat 5/23 Cloudy 2% 70° · 54°
  6. Sun 5/24 Cloudy 3% 78° · 55°
  7. Mon 5/25 Sunny 3% 78° · 53°
  8. Tue 5/26 Partly Cloudy 3% 83° · 55°
  9. Wed 5/27 Cloudy 3% 91° · 60°
  10. Thu 5/28 Cloudy 3% 93° · 67°

Days 8+ from the Open-Meteo multi-model ensemble — treat as a guide; accuracy drops past day 7.

Best time to head outside

Picks the upcoming daytime hour with the most favorable conditions for each activity. Factors in temperature, wind, precipitation timing, and pollen.

  • Run6 AM

    comfortable at 54°F · calm wind · no rain expected · pollen high today — allergy sufferers, take note

    Excellent100 / 100
  • Bike9 AM

    comfortable at 61°F · calm wind · no rain expected · pollen high today — allergy sufferers, take note

    Excellent100 / 100
  • Golf9 AM

    comfortable at 61°F · calm wind · no rain expected · pollen high today — allergy sufferers, take note

    Excellent100 / 100
  • Picnic11 AM

    comfortable at 70°F · light wind (10 mph) · no rain expected · pollen high today — allergy sufferers, take note

    Excellent100 / 100

Climate normals

What weather to expect in Simi Valley

Simi Valley in May typically averages 76° highs and 56° lows, with about 3 days of rain. The hottest stretch is August (average high 92°); the coldest is January (average low 49°). February is the wettest month on average.

MonthAvg highAvg lowRainy days
Jan67°49°5
Feb69°50°7
Mar74°52°6
Apr73°52°6
May76°56°3
Jun84°61°1
Jul89°65°0
Aug92°68°0
Sep88°66°3
Oct82°59°3
Nov71°52°7
Dec71°50°3

Normals derived from the past two years of observations via Open-Meteo's historical archive.

Forecast details

NWS gridpoint
LOX 137,58
Radar station
KVTX
Time zone
America/Los_Angeles
Coordinates
34.269, -118.781